END-TO-END PORTFOLIO OF BROADCAST VIDEO SOLUTIONS
2012 SPRING PRODUCT GUIDE
Semtech-Gennum Products Broadcast Video Portfolio:
CROSSPOINT SWITCHES
EQUALIZERS - NOW WITH LONGER REACH
RECLOCKERS
CABLE DRIVERS - ADVANCED NEW FEATURES
TIMING (GEN-CLOCKS)
SERIALIZERS
DESERIALIZERS
VIDEO OPTICAL MODULES - NEW CWDM MODULES
PCI EXPRESS®
9 e rst monolithic
multi-rate SDI solution
supporting all SDI and
DVB-ASI rates to 1.5Gb/s;
HDLinx II®
10 e rst combined HD/
SD SDI / DVB-ASI
SERDES with EDH and
SMPTE 352M support;
11 e rst SD SDI solution
to provide pin and
functional compatibility
with existing HD SDI
solutions
Gennum’s Rich History of Innovation in Broadcast:
Broadcast Video Solutions
Gennum,
your broadcast
semiconductor partner
As a pioneer in digital video, Gennum leads the way in proven SD, HD and 3Gb/s
technologies. We oer the world’s most advanced solutions designed specically for
real world broadcast challenges, including the latest innovations designed to help you
push the boundaries of performance, reach and signal integrity, while reducing time to
market and design risks.
In fact, there’s a good chance that any TV broadcast or professional video you see
passed through several Gennum components on its way to you.
A Broadcast-Focused Partner
For 20-plus years Gennum has been focused on bringing innovative high
performance solutions to the professional and broadcast video markets. is history
of innovation and achievement is a result of a company wide focus and commitment
to the broadcast industry sparking many industry rst products with unparalleled
performance and reliability.
contents
Crosspoint Switches 3
Equalizers 5
Reclockers 6
Cable Drivers 7
Timing (GEN-Clocks) 8
Product Guide 9
SerDes 11
Serializers 12
Deserializers 13
Video Optical Modules 14
CWDM Family 16
PCI Express® 17
Evaluation Boards &
Reference Design Kits 18
5 e rst monolithic
complete HD SDI
solution: HDLinx®
6 e rst complete multi-
rate SDI solution for 540
Mb/s; Genlinx II®
7 e rst monolithic
integrated Adaptive
Equalizer, Reclocker
and Deserializer for
270Mb/s;
8 e rst monolithic SD
audio embedder/de-
embedder;
1 First monolithic
SD Adaptive Cable
Equalizer operating to
143Mb/s;
2 e rst complete multi-
rate SD SDI solution for
360 Mb/s; Genlinx I®
3 e rst monolithic
Serializer and
Deserializer supporting
10B1C formats
operating up to
396Mb/s;
4 e rst monolithic
SD 8x9 crosspoint
matrix operating up to
800Mb/s;
1991 1993 1995 1997 1999 2001
1
2
3
4
5
6
7
8
9
10
With this ongoing focus on the broadcast industry and as a key contributor to SMPTE, Gennum continues to pioneer
transport technologies that deliver new experiences for the video broadcast market.
20-plus years of video expertise has given us an intimate knowledge of end-to-end broadcast systems and workow
design. is unique perspective helps us work with you to deliver the best possible SDI solutions for the most
challenging environments.
The Industry’s Most Comprehensive Portfolio
We oer the most comprehensive, end-to-end portfolio of broadcast video solutions available, including our new family
of long-reach and high-density adaptive equalizers, next generation cable drivers, our 3rd generation video SFP optical
modules and the industry’s most feature-rich crosspoint switches.
Dedicated to Your Success
Our commitment to your success is evident in everything we do. at’s why we:
• Comprehensively test each component in production, assuring high yield on assembled boards
• Oer complimentary design review and feedback on Gennum-based designs to shorten design cycles, reduce risks
and optimize performance
• Provide dedicated eld and applications engineering support throughout your product’s life-cycle
And with our ongoing contributions to and investments in SD, HD & 3Gb/s standardization and technologies, you
know we’ll be with you for the long run, easing the migration path for you to get to market quickly with dierentiated
solutions that are future-proofed for next generation video formats, ever-increasing data rates, and evolving I/O and
distance requirements
12 e smallest footprint,
lowest price highest
performance HD/SD
and DVB-ASI family
of semiconductor
solutions
13 e smallest foot
print, lowest power
equalizing de-
serializer supporting
up to 600m of coaxial
cable for all SD SDI
and DVB-ASI rates;
14 Awarded Technical
Emmy® for technology
advances in Serial
Digital Interface
Solutions, enabling over
20 years of seamless
studio and broadcast
infrastructure migration
15 e rst multi-rate SDI
solution supporting all
SDI and DVB-ASI rates
up to 3Gb/s
16 Gennum launches
Industry’s rst 3Gb/s
Video Optical SFP
17 First fully integrated 3G
receiver and transmitter
with built in video,
audio, ANC data and
serial IO
18 Demonstrates longest
high density signal
interconnect solution
for video applications
19 Introduces family of
CWDM Video SFPs
20 Gennum launches
Industry’s rst 3Gb/s
Video Optical SFP
21 Introduces Cable Boost™
technology in latest
family of cable drivers
22 Introduces Next
Generation EQ
technology with 200m
reach at 3G, 250m at
HD and 500m at SD
data rates
2003 2005 2007 2009 2011 2012
21
13
12
11
14
15
16 17
18
19
20 22
De-Emp
Parallel/Serial Interfaces
Active
Configuration Latch
Input
Configuration Latch
Programmable
PRBS
Pattern Generator 2
Input 1
Input 288
Programmable
PRBS
Pattern Generator 1
290 x 290
Switch
Matrix
PRBS Checker
& Status Monitor 1
PRBS Checker
& Status Monitor 2
Input 289
Input 290
Update
Enable [1:8]
Output 1
Output 288
Output 289
Output 290
De-Emp
Trace
EQ
Trace
EQ
GX3290
3 Spring 2012 Gennum Product Guide • Broadcast Video
Crosspoint Switches
Gennum crosspoint switches provide an unmatched
combination of size, features and performance. At sizes
up to 290 inputs and 290 outputs, these are the largest
asynchronous, fully non-blocking crosspoint switches in
the industry.
DESIGNED FOR BROADCAST
Gennum’s history in the broadcast market has given us
a thorough understanding of the nuances of broadcast
equipment, allowing us to design specically for these
applications. Using this expertise, we introduced several
features that are new to the industry such as multiple
strobe enable pins, the industry’s greatest input and output
exibility and a pattern checker that supports arbitrary
patterns. All of these features make our crosspoints easy to
use, while providing superior performance for Broadcast
applications.
MULTIPLE STROBES
Eight update enable strobe pins allow the crosspoint
to be broken into smaller pieces, each of which can be
independently updated. Independent updates enable more
deterministic control by allowing parallel operations to
occur vs. serializing multiple time domain events. is is
useful in multi-format environments when the switches need
to occur at dierent points in time. Because each update
strobe can be assigned on a per-output basis, this feature
enables maximum exibility.
DATA RATE MARGIN
Supporting data rates up to 3.5Gb/s means that there is
signicant margin for systems operating up to 2.97Gb/s. e
3.5Gb/s data rate support also means that the product can be
used in Xaui™, DisplayPort™ and HDMI applications.
Video-specific Features Developed from the ‘Ground Up’
for SDI (SD, HD, & 3G), 3D, and Ultra HD
FULLY INDEPENDENT INPUT AND OUTPUT CHANNELS
All of Gennum’s crosspoint products provide independent
input trace equalization and output de-emphasis, which
can compensate for over 50 inches of PCB trace loss. is
industry leading trace equalization allows customers the
exibility to utilize long traces and/or passive splitting of
signals in their designs with more condence in overall
signal integrity and lower jitter. Also, the wide input
sensitivity (100-1200mV) means that output amplitudes from
upstream chips can be reduced, saving overall system power.
In addition, each output can be independently powered
down for greater exibility. With output swing as low as
200mV, system power can be signicantly reduced when the
crosspoint is followed closely by another device.
ON-CHIP PATTERN GENERATORS AND CHECKERS
With two independent pattern generators and pattern
checkers on chip, the GX3290 (and family) can be used for
testing and diagnosing system channel issues on either the
input or output side of the system. Support for PRBS 7, 15,
and 23 patterns in the generator means that there is enough
exibility to evaluate the system under dierent stress
conditions. e pattern checker can check one of the three
PRBS patterns above or it can be congured to check bit
errors on any arbitrary pattern. is is particularly useful
for evaluating system performance with stressful video
pathological signals.
HOST INTERFACE FLEXIBILITY
By oering both serial and parallel host interfaces with
normal and auto-increment modes, you can choose the
interface and mode of operation that works best in your
system. is makes it easy to interface to a variety of control
devices, from FPGA and microcontroller based architectures.
EYE PATTERN DIAGNOSTICS
e GX3290 can check for bit errors at arbitrary phase osets
from the received data. is allows you to measure jitter
margin using horizontal eye opening values.
www.semtech.com 4
Crosspoint Switches
Industry’s largest crosspoint switch, designed specifically for broadcast
GX3290 GX3190 GX3246 GX3202 GX3146 GX4002
Data Rate (Gb/s) 3.5 3.5 3.5 3.5 3.5 14
Inputs 290 146 290 202 146 2
Input Sensitivity (mV) 80 80 80 80 80 80
Input Trace EQ YES YES YES YES YES YES
Outputs 290 290 146 202 146 2
Output De-emphasis YES YES YES YES YES YES
DC coupling 1.2V, 1.8V, 2.5V 1.2V, 1.8V, 2.5V 1.2V, 1.8V, 2.5V 1.2V, 1.8V, 2.5V 1.2V, 1.8V, 2.5V 3.3V
Temp Range (ºC) 0 to +85 0 to +85 0 to +85 0 to +85 0 to +85 -40 to +100 (Case)
Power (W) 34 25 18 24 18 0.3
Size (mm) 50x50 50x50 50x50 50x50 50x50 5x5
Package 2377 BGA 2377 BGA 2377 BGA 2377 BGA 2377 BGA 32 QFN
TEMPERATURE SENSORS
Four on-chip temperature sensors monitor the junction
temperature of the chip and provide this information via
registers, to be read by the system. is enables automated
control of fan speed and power down sequences that prevent
the chip and system from overheating.
DYNAMIC OUTPUT POWER DOWN AND SIGNAL INVERT
Having the output power down and signal invert functions
tied to the strobe enable pins guarantees that outputs enter
or exit power down mode when other switches tied to the
same strobe are occuring in the matrix. is combination
of dynamic output power down and high input sensitivity
enables passive expansion using multiple crosspoint
devices, eliminating the need for hundreds of costly and
powerhungry splitter and combiner components.
LOW POWER
Even with higher output swing voltages, Gennum is able to
achieve less than 35W for 290 active channels. Per channel
power consumption is industry leading when compared to
competitive solutions and is also highly scalable with less
than 1W power consumption in stand-by mode. System
power can be further reduced by taking advantage of the
crosspoint’s high input sensitivity and using Gennum’s
GS2993/94 and GS3440/41 equalizers at minimum output
swing levels.
FLEXIBLE FOOTPRINT
e GX3290, 3190, 3246, 3202, and 3146 are all pin
compatible. Also, sharing the same interface and register
set, one design can be easily scaled to the necessary switch
size with no rework required in either hardware or soware,
allowing multiple end products to be launched from one
common platform.
INPUT SENSITIVITY
e GX3290 family of crosspoints feature industry
leading input sensitivity. High input sensitivity provides
additional system margin to address losses typical in
many architectures attributable to long board traces, series
connectors and passive splits. In addition, high input
sensitivity facilitates better system optimization, including
reduced swing on upstream drivers, providing substantial
power savings.
INDUSTRY’S LARGEST SWITCH PRODUCT
Gennum’s new family of crosspoint devices includes the
industry’s rst 290x290 crosspoint switch. Even when
the core switch requirements are less than a full 290x290,
extra I/O can be used to provide additional opportunities
for dierentiation. For example, the I/O could be used as
a loop back with auxiliary processing for signal reporting,
monitoring and jitter cleaning.
As the broadcast industry evolves to support video formats
such as 3D and UltraHD, the need to support multiple
data rates and video formats will dramatically increase the
size and complexity of next-generation broadcast video
systems. Gennum’s crosspoint portfolio not only delivers the
superior size, performance and power management required
by these systems, but gives equipment manufacturers
and broadcasters alike the ability to monitor and control
performance.
APPLICATIONS
Routers, multiviewers, production switchers, master
control switchers and next generation, connected modular
equipment.
PERFORMANCE OPTIMIZED
Gennum oers a comprehensive range of 3Gb/s adaptive
cable equalizers optimized for real-world applications.
e GS3440 long-reach 3Gb/s adaptive cable equalizer is
optimized for robust performance in applications requiring
200 meters of 3Gb/s cable reach. For greater exibility, the
GS3441, a dual output version of the GS3440, is also available.
LONG CABLE REACH - PRODUCTION TESTED
Designed for applications requiring maximum cable reach
and robust performance, the GS3440 and GS3441 feature the
industry’s longest reach, 200m at 3Gb/s. Gennum equalizers
are production tested at applicable data rates and cable
lengths ensuring the best performance and highest board
yields.
MULTI-RATE
Gennum equalizers oer robust multi-standard operation
from 125Mb/s to 2970Mb/s even in the presence of stressful
video pathological signals and are fully SMPTE 424M, 292M,
344M and 259M compliant.
LOWEST JITTER
Gennum continues to reduce jitter at all cable lengths and for
all data rates. e GS3440 and GS3441 oer the industry’s
longest cable reach with robust performance.
5 Spring 2012 Gennum Product Guide • Broadcast Video
Equalizer
Output 1
AGC
SDI
SLEEP
SDO1
BYPASS CD
SDI
SDO1
AGCAGC
OP1_EN
SQ_ADJ
Squelch Adjust
Carrier Detect
Mute
DC
Restore
Output 2
SDO2
SDO2
OP2_EN
OP_CTL2
OP_CTL1
VCC_O1
VCC_O2
CLI
GAIN_SEL
GS3441
Equalizers
Industry’s most pervasive SDI equalizers– longest cable lengths, lowest jitter
and data rates up to 3Gb/s
LOW POWER
Gennum equalizers feature low power consumption for
power sensitive applications.
IMPROVED FEATURES
Enhanced ESD performance is critical for terminal I/O
connectivity and will result in more robust and higher
manufacturing yields.
NEW
GS3440 GS3441 GS2994* GS2984 GS2964 GS1674 GS9074A
Data Rate (Mb/s) 125 - 2970 125 - 2970 143 - 2970 143 - 2970 143 - 2970 143 - 1485 143 - 360
Input 0/6dB gain YES YES YES YES NO NO NO
Output Coupling 1.2-3.3V 1.2-3.3V 1.2-3.3V 2.5/3.3V 3.3V 3.3V 3.3V
No. of Outputs 1 2 1 1 1 1 1
3G Typical Cable
Length (m) 200 200 140 @ 0.3UI 140 @ 0.3UI 100 @ 0.35UI N/A N/A
HD Typical Cable
Length (m) 250 250 200 @ 0.2UI 200 @ 0.2UI 130 @ 0.25UI 220 @ 0.25UI N/A
SD Typical Cable
Length (m) 500 500 400 400 170 400 350
Footprint
Compatible With all 16 QFN EQs GS2993 all 16 QFN EQs all 16 QFN EQs all 16 QFN EQs all 16 QFN EQs all 16 QFN EQs
Temp Range (ºC) -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 0 to +70
Power (mW) 197 210 165 195 215 195 215
Size (mm) 4 x 4 4 x 4 4 x 4 4 x 4 4 x 4 4 x 4 4 x 4
Package 16 QFN 24 QFN 16 QFN 16 QFN 16 QFN 16 QFN 16 QFN
* Dual output versions available . See equalizer table in the centre of the guide.
GS2985
SDI 1
SDI 2
SDI 3
SDI 4
SDI 1
SDI 2
or
Serial
Clock
Re-timed
Data
Mute 1
XTAL (27 MHz)
SS[2:0]
SDO/EQ1_EN
SDI/EQ0_EN
SCK/EQ2_EN
CS/EQ3_EN
Auto/
MAN
LD
Auto
Bypass
Bypass
SD/HD3G
Mute 2
PLL/Re-Timer
Control Logic
Clock/
Data
Buer
SPI
Trace
Equalizer
Data
Buer
De-
emphasis
Driver
De-
emphasis
Driver
Recovered
Clock
DDI_SEL
[1:0]
Data
Mux
HIF
GS2965 GS2985 GS2986 GS1675 GS9076
Data Rate (Mb/s) 270, 1485, 2970 270, 1485, 2970 270, 1485, 2970 270, 1485 270
Power Supply (V) 2.5 or 3.3 2.5 or 3.3 2.5 or 3.3 2.5 or 3.3 3.3
Output Jitter (UI)
3G: 0.05
HD: 0.03
SD: 0.01
3G: 0.05
HD: 0.03
SD: 0.01
3G: 0.05
HD: 0.03
SD: 0.01
HD: 0.03
SD: 0.01 SD: 0.02
Input Trace Equalization YES YES YES YES NO
Output De-Emphasis YES YES YES YES NO
Serial Interface YES YES YES YES NO
Input MUX 2 : 1 4 : 1 4 : 1 2 : 1 4 : 1
Dual Data Output YES YES YES YES YES
Temp Range (ºC) -40 to +85 -40 to +85 -40 to +85 -40 to +85 0 to +70
Power (mW) 180 180 180 180 400
Size (mm) 5 x 5 9 x 9 6 x 6 5 x 5 9 x 9
Package 32 QFN 64 QFN 40 QFN 32 QFN 64 QFN
Reclockers
IMPROVED JITTER TOLERANCE
As routers and distribution systems grow in size, system jitter
increases. Reclocking has become important in maintaining
overall system robustness. In addition, as processing is being
integrated into more and more devices, reducing the overall
jitter in a system is critical given that many processing
specic devices like FPGAs can have poor IJT. Performance
leading reclockers such as the Gennum GS2985 can be
utilized to increase overall system margin.
MULTI-RATE
Gennum reclockers oer robust multi-standard operation
from 270Mb/s to 2970Mb/s and are SMPTE 424M, 292M and
259M-C compliant.
LOWEST POWER
Gennum oers high-performance at the industry’s lowest
power consumption.
BEST INPUT JITTER TOLERANCE
Gennum’s unique reclocker architecture oer the industry’s
best input jitter tolerance for worry free design exibility.
e GS2965, GS2985 and GS2986 all have a minimum input
jitter tolerance of 0.8UI, making them ideal for 3Gb/s SDI
designs.
LOW OUTPUT JITTER
e GS2985 features robust performance with the industry’s
best output jitter.
Industry’s lowest power and lowest jitter 3Gb/s solutions
ADDITIONAL FEATURES
e GS2965, GS2985, and GS2986 add input trace
equalization and output signal de-emphasis, which provides
additional exibility to system designers. In addition, the
serial control interface to these devices provide multiple
communication methods. ese devices also feature
automatic slew rate control when used with Gennum’s
cable drivers for multiformat applications. e integrated
2:1 or 4:1 signal selection mux at the input of the Gennum
reclockers allows them to be utilized in architectures that
require switching matrices and failover redundancy. is
reduces the need for additional signal path components and
their associated jitter
.
SIZE
e GS2985 maintains the same size as previous generations,
while the GS2986 maintains the same features as the GS2985
but is 55% smaller. e GS2965 is 69% smaller than the
GS2985.
www.semtech.com 6
GS3481
GSPI Interface
Signal
Presence
Equalizer Slew Rate
Control
Band Gap Reference
& Output Control
DDI
DDI
SDO1
RSET
SD_EN
EQ_EN
SP
SCLK
OUT4_EN
OUT2_EN
PRE_EMPH_O1_O2
OUT1_EN
PRE_EMPH_O3_O4
OUT3_EN
SDO2
SDO3
SDO4
CS
HIGH_SWING_EN
SDOSDI
NEW
THE INDUSTRY’S MOST ADVANCED CABLE DRIVER
Gennum oers a complete range of cable drivers that
support data rates up to 2.97Gb/s. e GS3480 and GS3481
are Gennum’s most advanced cable drivers and oer a
comprehensive feature set for today’s most demanding
applications.
Gennum cable drivers oer robust multi-standard operation
from DC to 2970Mb/s and are SMPTE 424M, 292M, 344M
and 259M compliant.
CABLE-BOOST™
e GS3480 and GS3481 are the industry’s only cable drivers
featuring Cable-Boost. With up to 9db (adjustable in 1dB
increments) of output pre-emphasis, the GS3480 and GS3481
are ideal for use in applications, where moving the SMPTE
compliance point from the board connector to a point
further downstream is desirable.
LARGEST OUTPUT SWING
e GS3480 and GS3481 feature the industry’s largest output
swing at 2400mV. High output swing can be utilized to
compensate for losses that occur aer the cable driver output.
A larger output swing also enables passive mux solutions (for
creating larger systems).
Cable Drivers
Lowest jitter, best ORL, and data rates up to 3Gb/s
7 Spring 2012 Gennum Product Guide • Broadcast Video
GS3480 GS3481 GS2988 GS2989 GS1678 GS1679 GS9077
Data Rate (Mb/s) DC to 2970 DC to 2970 143 - 2970 143 - 2970 143 - 1485 143 - 1485 143 - 540
Power Supply (V) 2.5 or 3.3 2.5 or 3.3 2.5 or 3.3 2.5 or 3.3 2.5 or 3.3 2.5 or 3.3 3.3
Outputs 2 (non-
inverted)
4 (non-
inverted) 24242
Output Cable Boost™ (db) 9 (1db steps) 9 (1db steps)
Input Trace Equalization YES YES YES YES NO NO NO
Output Signal Presence YES YES YES YES YES YES NO
Maximum Output Swing (mV) 2400 2400 1800 1800 1200 1200 1040
ESD Protection (kV) 2 2 2.5 2.5 2.5 2.5 4
ORL (dB) 3G: -14
HD: -18
3G: -14
HD: -18
3G: -15
HD: -19
3G: -15
HD: -19 -19 -19 -20
Circuit Compatible With GS1678,
GS9077 GS1679 GS2988,
GS9077 GS2989 GS1678,
GS2988
Temp Range (ºC) -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 0 to +70
Power (mW) 100 122 110 180 110 180 168
Size (mm) 4 x 4 4 x 4 4 x 4 4 x 4 4 x 4 4 x 4 4 x 4
Package 24 QFN 24 QFN 16 QFN 16 QFN 16 QFN 16 QFN 16 QFN
UP TO FOUR NON-INVERTED OUTPUTS
e GS3481 has 4 non-inverted outputs (the GS3480 has,
2 non-inverted outputs), making it ideal for distribution
applications and applications utilizing polarity sensitive
signal formats such as DVB-ASI.
GS4900B GS4901B GS4910B GS4911B
Input Video Standard 3G/HD/SD/Graphics 3G/HD/SD/Graphics 3G/HD/SD/Graphics 3G/HD/SD/Graphics
Output Video Standard SD SD 3G/HD/SD/Graphics 3G/HD/SD/Graphics
Max Output Video Clock (MHz) 54 54 165 165
Power Supply (V) 3.3, 1.8 3.3, 1.8 3.3, 1.8 3.3, 1.8
Package 64 QFN 64 QFN 64 QFN 64 QFN
Size (mm) 9 x 9 9 x 9 9 x 9 9 x 9
Genlock YES YES YES YES
Audio Clocks NO YES NO YES
User Programmable NO NO YES YES
Power (mW) 215 265 250 300
Timing (GEN-Clocks)
GS4900B/GS4901B/GS4910B/GS4911B
CLOCK GENERATORS
GENLOCK CAPABILITY
Gennum clock generators can be genlocked to reference with
a variable oset. On loss of reference, the video clocks will
ywheel to maintain their frequency.
GENERATES MULTIPLE CLOCKS
3 video clocks (2 single-ended and one dierential), 3 single-
ended audio clocks, and 8 single-ended congurable timing
signals can be generated. Video clocks up to 165MHz can be
produced in order to support up to 3Gb/s SDI and UXGA.
In addition, the GS4911B features crosslocking capability
where HD timing can be generated from an SD reference,
increasing design exibility.
INPUT STANDARD DETECTION
By supplying the clock generator with HSync, VSync and
Fsync, the chip will determine if it matches one of 36 video or
16 graphics standards and will report the detected standard.
Your complete timing solution for broadcast video
GS4915 ClockCleaner™
REDUCES JITTER TO MEET SMPTE SPECS
e GS4915 will reduce jitter on video clocks of 27, 74.25,
74.25/1.001, 148.5, and 148.5/1.001 MHz. Output jitter
will typically be 20ps, which will guarantee 3Gb/s SDI
compliance when used with a serializer.
FLEXIBLE I/O FREQUENCIES AND LEVELS
SD (27MHz), and HD (74.25, 74.25/1.001, 148.5,
148.5/1.001MHz) frequencies can be input and output from
the GS4915. e chip also has single-ended and dierential
inputs and outputs to facilitate interfacing with a variety of
chips.
FREQUENCY DOUBLER TO MEET 3Gb/s SDI
REQUIREMENTS
If the input clock frequency is 74.25 or 74.25/1.001MHz, the
GS4915 can double the output, providing a low jitter 148.5 or
148.5/1.001MHz output clock which can be used for HD-SDI
and 3Gb/s SDI applications.
HSync
VSync
FSync
8 Video
Timing
Signals
Detected
Standard
3 Audio Clocks
3 Video
Clocks
2 S/E, 1 Diff
Standard
Detection
Timing Signal
Generation
Audio Clock
Generation
Video Clock
Generation &
Timing Offset
X-point
Delay
Adjust
GS4911B
PCLK
PCLK
Clean
Clock
Clean
Clock
Diff
Input
Single
Ended
Input
External
GO1555
PLL
Frequency
Detection/Selection,
Bypass, Skew Control
GS4915
www.semtech.com 8
SERIALIZERS
Data Rate
(Mb/s)
Video
Processing
Audio Embed
Output
Jitter (ps)
Parallel
Bus Width
CEA
861
Timing
Temp Range
(ºC)
Power
(mW) Pkg
GS2972
270, 1485,
2970
YES YES
3G: 40
HD: 50
SD: 200
10 or 20
YES -40 to +85
400 BGA 100
GS2962
270, 1485,
2970
YES NO
3G: 40
HD: 50
SD: 200
10 or 20
YES -40 to +85
350 BGA 100
GS1672
270, 1485
YES YES
HD:50
SD: 200 10 or 20
YES -40 to +85
350 BGA 100
GS1662
270, 1485
YES NO
HD: 50
SD: 200 10 or 20
YES -40 to +85
330 BGA 100
GS9092A
270
YES NO
SD: 225
10
NO 0 to +70 200 QFN 56
Product Guide
9 Spring 2012 Gennum Product Guide • Broadcast Video
DESERIALIZERS
Data Rate
(Mb/s)
Equal-
izer
Video
Process-
ing
Serial
Loop
Through
IJT
(UI)
ANC
Extrac-
tion
Audio
De-em-
bed
CEA 861
Timing
Temp
Range
(ºC)
Power
(mW) Pkg
GS2971A
270, 1485,
2970 YES
YES YES 0.7 YES YES
YES
-40 to +85
525 BGA 100
GS2961A
270, 1485,
2970 YES
YES YES 0.7 YES NO
YES
-40 to +85
500 BGA 100
GS2970A
270, 1485,
2970 NO
YES YES 0.7 YES YES
YES
-40 to +85
350 BGA 100
GS2960A
270, 1485,
2970 NO
YES YES 0.7 YES NO
YES
-40 to +85
320 BGA 100
GS1661A1
270, 1485 YES
YES YES 0.7 YES NO
YES
-40 to +85
460 BGA 100
GS1660A2
270, 1485 NO
YES YES 0.7 YES NO
NO
-40 to +85
280 BGA 100
GS9091B
270 YES
YES NO 0.5 YES NO
NO
0 to +70
350 BGA 100
GS9090B
270 NO
YES NO 0.5 YES NO
NO
0 to +70
145 QFN 56
1-GS1671A audio version available, 2-GS1670A audio version available.
OPTICAL MODULES
Description Optical
Inputs
Optical
Outputs
3Gb/s
Path. Rec.
Sensitivity
(dBm)
Output
Power
(dBm)
Wavelength
(nm)
Data
Rate
(Mb/s)
Power
(mW)
Temp
Range
(ºC)
Supply
(V) Pkg
GO2927
Dual Rx 2 – -23 – 1260-1620 50-3000 600
0 to +70
3.3 Video SFP
GO2917
Single Rx 1 – -23 – 1260-1620 50-3000 300
0 to +70
3.3 Video SFP
GO2929
Transceiver 1 1 -22 -2 Tx 1310 /
Rx 1260-1620 50-3000 650
0 to +70
3.3 Video SFP
GO2928
Dual Tx – 2 – -2 1310 50-3000 700
0 to +70
3.3 Video SFP
GO2918
Single Tx – 1 – -2 1310 50-3000 350
0 to +70
3.3 Video SFP
CWDM OPTICAL FAMILY
Description Optical
Inputs
Optical
Outputs
3Gb/s
Path. Rec.
Sensitivity
(dBm)
Output
Power
(dBm)
Wavelength
(nm)
Data
Rate
(Mb/s)
Power
(mW)
Temp
Range
(ºC)
Supply
(V) Pkg
GO2953
-xxyyCH
Dual Tx – 2 – 0-5 / 2 1271-1611 50-3000 680
0 to +70
3.3 Video SFP
GO2952
-xxCH
Single Tx – 1 – 0-5 / 2 1271-1611 50-3000 340
0 to +70
3.3 Video SFP
GO2951
Transceiver 1 1 -22 0-5 / 2 Tx 1551* /
Rx 1260-1620 50-3000 650
0 to +70
3.3 Video SFP
for full detail see chart page 16
CROSSPOINT SWITCHES
Data Rate (Gb/s) Power (W)
Inputs Outputs Input Trace EQ Output
De-emphasis
Pkg
GX3290
3.5
34
290 290 YES
YES
2377 BGA
GX3190
3.5 25 146 290 YES
YES
2377 BGA
GX3246
3.5
18 290 146
YES
YES
2377 BGA
GX3202
3.5 24 202 202
YES
YES
2377 BGA
GX3146
3.5 18 146 146
YES
YES
2377 BGA
GX4002
14 0.3 2 2
YES
YES 32 QFN
RECLOCKERS
Data Rate
(Mb/s)
Power
(mW)
Power
Supply (V)
Input
Trace EQ
Output
De-emphasis
Input
MUX
Temp
Range (ºC)
Size
(mm) Pkg
GS2965
270, 1485, 2970
180
2.5 or 3.3
YES YES
2 : 1
-40 to +85 5x5
32 QFN
GS2985
270, 1485, 2970
180
2.5 or 3.3
YES YES
4 : 1
-40 to +85 9x9 64 QFN
GS2986
270, 1485, 2970
180
2.5 or 3.3
YES YES
4 : 1
-40 to +85 6x6 40 QFN
GS1675
270, 1485 180 2.5 or 3.3
YES YES
2 : 1
-40 to +85
5x5 32 QFN
GS9076
270 400 3.3
NO NO
4 : 1 0 to +70 9x9 64 QFN
www.semtech.com 10
EQUALIZERS
NEW
Data Rate
(Mb/s)
Power
(mW)
3G
Cable
Length
(m)
HD
Cable
Length
(m)
SD
Cable
Length
(m)
Input
0/6dB
gain
Number
of
Outputs
Output
Coupling
Cable
Length
Indication
Temp
Range (ºC)
Pkg
GS3440
125 - 2970 197 200
250 500
YES 1 1.2 - 3.3V NO
-40 to +85
16 QFN
GS3441
125 - 2970 210 200
250
500 YES 2 1.2 - 3.3V YES
-40 to +85
24 QFN
GS2993
143 - 2970 165 140
200 400
YES 2 1.2 - 3.3V YES
-40 to +85
24 QFN
GS2994
143 - 2970 165 140
200
400 YES 1 1.2 - 3.3V NO
-40 to +85
16 QFN
GS2984
143 - 2970
195
140
200 400
YES 1 2.5/3.3V NO
-40 to +85
16 QFN
GS2964
143 - 2970
215
100
130 170
NO 1 3.3V NO
-40 to +85
16 QFN
GS1674
143 - 1485 195 N/A
220 400
NO 1 3.3V NO
-40 to +85
16 QFN
GS9074A
143 - 360 215 N/A N/A
350
NO
1
3.3V 0 to +70 16 QFN
NEW
CABLE DRIVERS
Data Rate
(Mb/s)
Power
(mW)
Power
Supply (V) Outputs Input Trace
EQ
Output
Signal
Presence
Max
Output
Swing (mV)
Temp
Range (ºC) Pkg
GS3480
DC to 2970 100 2.5 or 3.3
2 YES YES
2400
-40 to +85 24 QFN
GS3481
DC to 2970 122 2.5 or 3.3
4 YES YES
2400
-40 to +85 24 QFN
GS2988
143 - 2970
110
2.5 or 3.3
2 YES YES
1800
-40 to +85 16 QFN
GS2989
143 - 2970
180
2.5 or 3.3
4 YES YES
1800
-40 to +85 16 QFN
GS1678
143 - 1485 110 2.5 or 3.3
2 NO YES 1200 -40 to +85
16 QFN
GS1679
143 - 1485 180 2.5 or 3.3
4 NO YES 1200 -40 to +85
16 QFN
GS9077
143 - 540 168 3.3
2 NO NO 1040
0 to +70 16 QFN
Choosing the Right SerDes For Your System
As a designer, you have the choice of selecting components
from dierent vendors. But when it comes to designs with
serializers and deserializers, you rst have to choose an
architecture. In implementing a design with a serializer
and/or deserializer, you have 3 architectural choices at your
disposal: Gennum’s complete serializer/deserializer solution
architecture, an integrated-transceiver FPGA architecture
and an FPGA-helper architecture. Let’s explore these three
options with an assessment of the following key parameters:
jitter, power consumption, integration (component/features),
time-to-market, system size and cost.
GENNUM’S COMPLETE SOLUTION ARCHITECTURE
Leveraging our expertise in signal integrity and our deep
understanding of broadcast video technologies, Gennum’s
SDI serializer and deserializer oering encapsulates all
the analog components (SerDes, VCO, CD, EQ, Reclocker)
and digital SMPTE video and audio processing required
to transmit and receive SDI video. is optimized, cost-
eective and power ecient ASIC implementation that lets
you focus on your value-added processing for quicker time-
to-market. All of this integration into one package reduces
the PCB footprint required to implement SDI transmit/
receive, and you benet from Gennum’s superior jitter
performance. Only Gennum oers a solution that scores
high for each evaluation parameter.
INTEGRATED-TRANSCEIVER FPGA ARCHITECTURE
Integrated-transceiver FPGAs typically oer the worst
specications in terms of jitter. Maximum output jitter and
input jitter tolerance (IJT) are typically at the limit of the
SMPTE standards, and, in some cases, actually in violation
of industry norms. at is why extra components, namely
VCXOs and reclockers, are required to get the system jitter
performance to an acceptable level. is comes at a penalty
of higher power consumption, system footprint size and cost.
Because of all the ne tuning required to get this architecture
to work, and because of the IP licensing/development
required for the digital SMPTE video processing, this
Serializers/Deserializers
architecture unnecessarily prolongs time-to-market. Finally,
while FPGAs integrate transceivers, they do not integrate
routing components like cable drivers and equalizers.
FPGA-HELPER ARCHITECTURE
e FPGA-helper architecture, as depicted below, involves
the use of a component that includes the physical media
attachment part of a SMPTE deserializer/serializer, with
the digital SMPTE processing implemented in the FPGA.
e result is an architecture that is taxing in terms of power
consumption and those FPGA-helper parts are lacking, even
basic SMPTE digital processing. In many cases, product
specic FPGA IP already requires high utilization factors
in small, low-cost FPGAs and the added requirement of
digital SMPTE video processing in the FPGA may drive
adoption of a larger FPGA. is results in further penalties
in power consumption, size and system cost. And while
this architecture fares well in system jitter performance to
certain cases, the added engineering eort in developing
(or licensing) and stitching that video processing logic to
product specic code ensures a slower time-to-market.
Finally, while some FPGA-helper parts integrate a cable
driver, the oering lacks an integrated equalizer.
HOW THE GENNUM SOLUTION STACKS UP
Compare the ratings of each of the 3 architectures for key
parameters in an implementation of 1 Rx and 1 Tx channel.
EQ
Transmitter
w/CD
11
11
Complete Complete
Gennum: Complete Solution Transmitter/Receiver
EQ+Receiver
SDI Output
SDI Input Low-End FPGA
Spartan 3A, Cyclone III
Proprietary Customer
Logic
Receiver
VCXO
Digital
SMPTE processing
Proprietary Customer Logic
CD
Reclocker
EQ
Receiver
Transmitter
Integrated Transceiver FPGAs
12
EQ
Digital
SMPTE processing
Proprietary Customer Logic
Receiver Transmitter
w/CD
Partial Partial
12
FPGA-Helper SERDES
SDI Output SDI Input
High-End FPGA
Virtex 5,Stratix II GX
SDI Output SDI Input
High-End FPGA
Virtex 5,Stratix II
EQ
Transmitter
w/CD
11
11
Complete Complete
Gennum: Complete Solution Transmitter/Receiver
EQ+Receiver
SDI Output
SDI Input Low-End FPGA
Spartan 3A, Cyclone III
Proprietary Customer
Logic
Receiver
VCXO
Digital
SMPTE processing
Proprietary Customer Logic
CD
Reclocker
EQ
Receiver
Transmitter
Integrated Transceiver FPGAs
12
EQ
Digital
SMPTE processing
Proprietary Customer Logic
Receiver Transmitter
w/CD
Partial Partial
12
FPGA-Helper SERDES
SDI Output SDI Input
High-End FPGA
Virtex 5,Stratix II GX
SDI Output SDI Input
High-End FPGA
Virtex 5,Stratix II
EQ 11
11
Complete Complete
Gennum: Complete Solution Transmitter/Receiver
EQ+Receiver
SDI Output
SDI Input Low-End FPGA
Spartan 3A, Cyclone III
Proprietary Customer
Logic
Receiver
VCXO
Digital
SMPTE processing
Proprietary Customer Logic
CD
Reclocker
EQ
Receiver
Transmitter
Integrated Transceiver FPGAs
12
EQ
Digital
SMPTE processing
Proprietary Customer Logic
Receiver Transmitter
w/CD
Partial Partial
12
FPGA-Helper SerDes
SDI Output SDI Input
High-End FPGA
Virtex 5,Stratix II GX
SDI Output
SDI Input
High-End FPGA
Virtex 5,Stratix II
Transmitter
w/CD
GENNUM
COMPLETE
SOLUTION
INTEGRATED-
TRANSCEIVER
FPGA
FPGA-HELPER
SERDES
Jitter Performance
Time-to-Market
Power Consumption
Integration
Overall PCB Space
System Cost
11 Spring 2012 Gennum Product Guide • Broadcast Video
SDI
Output
Video
Processing Serializer
Video
Timing
Pclk
Audio
Cable
Driver
Narrow
LBW PLL
Audio
Embedder
GS2972
GS2972 GS2962 GS1672 GS1662 GS9092A
Data Rate (Mb/s) 270, 1485, 2970 270, 1485, 2970 270, 1485 270, 1485 270
Video Processing YES YES YES YES YES
DVB/ASI YES YES YES YES YES
Ancillary Data Insertion YES YES YES YES NO
Audio Embedder YES NO YES NO NO
Cable Driver YES YES YES YES YES
Serial Output
Intrinsic Jitter (ps)
3G: 40
HD: 50
SD: 200
3G: 40
HD: 50
SD: 200
HD: 50
SD: 200
HD: 50
SD: 200 SD: 225
Parallel Bus Width 10 or 20 10 or 20 10 or 20 10 or 20 10
CEA 861 Timing YES YES YES YES NO
Temp Range (ºC) -40 to +85 -40 to +85 -40 to +85 -40 to +85 0 to +70
Power (mW) 400 350 350 330 200
Standby YES YES YES YES NO
Package BGA 100 BGA 100 BGA 100 BGA 100 QFN 56
Serializers
3Gb/s SDI
Gennum’s GS2972 and GS2962 are fully compliant with
SMPTE 424M and 425M including support for both Level
A and Level B. In addition, these chips are the only ASIC
solutions providing conversion from Level A to Level B. e
full set of included features makes these devices the ideal
choice for 1080p 50/60 transmission.
COMPLETE VIDEO PROCESSING
Gennum serializers have the most complete video processing
features available. ese include, but are not limited to:
scrambling, TRS detection or insertion, and ancillary data
insertion.
GREAT FOR DVB-ASI
All Gennum serializers are DVB-ASI capable.
AUDIO EMBEDDING
Gennum’s serializers include an integrated audio embedder
supporting AES, I2S, and serial audio formats.
The easiest, fastest, lowest power method of implementing an SDI or ASI link.
EXCELLENT JITTER PERFORMANCE
Due to the integrated PLL with narrow loop
bandwidth, the serializers can reject up to 300ps of jitter
on the parallel clock, outputting very low jitter, SMPTE
compliant SDI signals.
POWER AND AREA EFFICIENT
e high level of integration in Gennum’s serializers provides
the lowest power and smallest means of implementing an
SDI link.
APPLICATIONS
Cameras, camera control units, multiviewers, routers,
production switchers, master control switchers, VTRs,
video servers, encoders/decoders, up/down/cross converters,
audio embedders, format detectors, test and measurement
equipment.
www.semtech.com 12
GS2971A
Pclk
Video
Timing
Audio Clock
Audio Data
Serial Loop
Through
SDI
Input
SDI
Equalizer Reclocker Video
Processing
Audio
De-embedder
Deserializer Clock
Generator
Buffer
Mux
GS2971A GS2961A GS2970A GS2960A GS1661A
1
GS1660A
2
GS9091B GS9090B
Data Rate (Mb/s) 270, 1485,
2970
270, 1485,
2970
270, 1485,
2970
270, 1485,
2970 270, 1485 270, 1485 270 270
Equalizer YES YES NO NO YES NO YES NO
Video Processing YES YES YES YES YES YES YES YES
DVB/ASI YES YES YES YES YES YES YES YES
Serial Loop Through YES YES YES YES YES YES NO NO
Input Jitter
Tolerance (UI) 0.7 0.7 0.7 0.7 0.7 0.7 0.5 0.5
Ancillary Data
Extraction YES YES YES YES YES YES YES YES
Audio De-embedder YES NO YES NO NO NO NO NO
Audio Clock
Generator YES NO YES NO NO NO NO NO
Parallel Bus Width 10 or 20 10 or 20 10 or 20 10 or 20 10 or 20 10 or 20 10 10
CEA 861 Timing YES YES YES YES YES YES NO NO
Temp Range (ºC) -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 0 to +70 0 to +70
Power (mW) 525 500 350 320 460 280 350 145
Standby YES YES YES YES YES YES NO NO
Package BGA 100 BGA 100 BGA 100 BGA 100 BGA 100 BGA 100 BGA 100 QFN 56
Deserializers
3Gb/s SDI
Gennum’s GS2971A and GS2961A deserializers take
integration to the next level by incorporating Gennum’s
latest equalization technology for a compact, comprehensive,
single-chip receive solution that also includes a VCO, a
reclocker, and digital SMPTE video and audio processing.
Gennum’s 3Gb/s SDI deserializers are fully compliant with
SMPTE 424M and 425M including support for both Level A
and Level B. In addition, Gennum deserializers are the only
ASIC solutions providing conversion from Level B to Level A.
e full set of included features makes these devices the ideal
choice for 1080p 50/60.
COMPLETE VIDEO PROCESSING
Gennum deserializers have the most complete set of video
processing features available. ese include, but are not
limited to: descrambling, word alignment, comprehensive
error detection and correction, and ancillary data extraction.
GREAT FOR DVB-ASI
All Gennum receivers are DVB-ASI capable.
The easiest, fastest, lowest power method of implementing an SDI or ASI link.
AUDIO DE-EMBEDDING
GS2971A includes an integrated audio
de-embedder supporting AES, I2S, and serial audio formats.
e chip also features an integrated audio clock generator.
INTEGRATED EQUALIZER
Gennum’s GS2971A and GS2961A deserializers feature a
high-performance integrated adaptive cable equalizer. e
integration of the cable equalizer reduces overall PCB
component footprint, and power requirements.
APPLICATIONS
Monitors, camera control units, multiviewers, routers,
production switchers, master control switchers, VTRs, video
servers, encoders/decoders, up/down/cross converters, audio
de-embedders, format detectors, test and measurement
equipment.
1-GS1671A audio version available, 2-GS1670A audio version available.
13 Spring 2012 Gennum Product Guide • Broadcast Video
Fiber Optics in Broadcast
As the building of 3Gb/s SDI capable infrastructure
continues, there has been a sharp increase in the use of
ber optic interfaces for the transport and distribution
of 3Gb/s SDI signals due to the declining implementation
costs. At these higher data rates, ber optic systems provide
a number of advantages vs coax cables including virtually
unlimited capacity, transmission distance and immunity
from electromagnetic interference. Optical ber is also
signicantly smaller and lighter than coax allowing smaller
and lighter cable harnesses, which can be a huge benet
where space and weight is tightly constrained as in a
production truck.
While the use of optical technology within the broadcast
studio is increasing, not all solutions provide the same level
of robustness, performance and reliability. For over 20 years
Gennum has been bringing industry leading, innovative
solutions and support to the broadcast market. is
leadership also extends to the optical space where Gennum
has been bringing innovative optical products to the
datacom and telecom industries for over ten years. Gennum’s
Video SFP Optical modules are at the intersection of
Gennum’s excellence in both video and optical technologies.
Leveraging years of technical experience in both the
broadcast and optical markets, Gennum’s Video SFP Optical
modules are engineered to provide industry leading optical
performance.
Fiber becoming a more integral part of broadcast infrastructure
With our third generation Video SFP Optical modules now
shipping in volume, we are expanding our module portfolio
by launching a new CWDM family of products.
WHAT IS CWDM? WHY DO I NEED IT?
e third generation family of products oers robust, single
point-to-point links for a single datastream per ber. To
send another signal, one could add another ber link, but
this is not always desirable or feasible. Since optical ber has
such a large bandwidth, it is possible to combine multiple
signals and send them down a single ber. is is known as
multiplexing.
With CWDM (Coarse Wavelength Division Multiplexing),
multiple lasers tuned to specic wavelengths are grouped
together with optical lters (Optical MUX) and travel
independently along a single ber. At the end of the ber,
lters are used to separate (Optical DeMUX) the individual
wavelengths. CWDM uses wavelengths separated by 20nm
beginning at 1271nm to 1611nm. A total of 18 wavelengths
are available to combine on a single ber. e lasers used
in CWDM transmitters also have a higher power and much
narrower spectral width resulting in signals traveling much
longer distances, up to 50 km in a 3Gb/s CWDM installation.
Gennum’s video SFP Optical modules are engineered to
provide industry leading optical performance and robustness
for mission-critical broadcast applications. e module
family is growing, as can be seen in the next few pages.
Expect many more additions to the family moving forward.
www.semtech.com 14
Optical MUX
Optical DeMUX
Signal 1
Signal 2
Signal 3
Signal 4
Signal 1
Signal 2
Signal 3
Signal 4
VIDEO
Serializers
Deserializers
Equalizers
Cable Drivers
Reclockers
OPTICAL
CDRs
TIAs
ROSAs
Laser Drivers
Limiting Amps
* Maximum link distance is dependent on transmitter type and data rate.
** When used with a SMPTE 297-2006 compatible receiver over single mode
ber. Maximum distance is 21km for HD-SDI and 30km for SD-SDI.
Video Optical Modules
Extend the reach of 3Gb/s-SDI over optical fiber
15 Spring 2012 Gennum Product Guide • Broadcast Video
ROBUST PERFORMANCE
Not all video optical modules are created equal. Gennum’s
optical modules are built upon Gennum’s excellence in both
SDI and optical technology. Incorporating custom receiver
silicon, Gennum Rx modules feature an exceptional dynamic
range ensuring maximum interoperability with SMPTE 297
compliant transmitters. Additionally, Gennum’s modules
provide robust performance across all operating conditions,
ensuring a highly reliable optical link.
THIRD GENERATION PRODUCTS
Gennum’s third generation video SFP optical modules
demonstrate Gennum’s ongoing commitment to supply the
broadcast market with the most robust video SFP solutions.
e latest modules provide exceptional value in short reach
optical applications and oer design improvements and
enhanced functionality.
Gennum’s third generation SFPs oer an improved mechanical
design with a superior latching and delatching mechanism.
Additionally, all the new modules feature a user writable
EEPROM that allows equipment manufacturers to program
their own information within the SFP to enable their
equipment to identify qualied modules.
GO2927 GO2917 GO2929 GO2928 GO2918
Description
3Gb/s-SDI
Dual Channel
PIN Receiver
3Gb/s-SDI
Single Channel
PIN Receiver
3Gb/s-SDI
1310nm FP/PIN
Transceiver
3Gb/s-SDI
Dual Channel 1310nm
FP Transmitter
3Gb/s-SDI
Single Channel
1310nm FP Transmitter
No. of Optical Inputs 2 1 1 – –
No. of Optical Outputs – – 1 2 1
3Gb/s Pathological Re-
ceive Sensitivity (dBm) -23 -23 -22 – –
Typical Ave. Optical
Output Power (dBm) – – -2 -2 -2
Nominal Optical
Wavelength (nm) 1260-1620 1260-1620 Tx 1310/Rx 1260-1620 1310 1310
Data Rate (Mb/s) 50-3000 50-3000 50-3000 50-3000 50-3000
Power (mW) 600 300 650 700 350
Temp Range (ºC)
0 to +70 0 to +70 0 to +70 0 to +70 0 to +70
Supply Voltage 3.3V 3.3V 3.3V 3.3V 3.3V
Typical Distance
@ 3Gb/s-SDI (km) –* –* 10** 10** 10**
Package Video SFP Video SFP Video SFP Video SFP Video SFP
VIDEO OR DATACOM PINOUT OPTION
Gennum is pleased to oer both video and datacom pinout
variants for all new products. is allows network equipment
manufacturers to add optical SDI interfaces to any existing
products that were designed around the SFP MSA pinout.
COMPACT, PLUGGABLE, FLEXIBLE
Gennum’s small form factor modules for digital video (Video
SFP) are hot pluggable, easy to use, and oer the highest
density optical solution for carrying digital video over optical
ber. e Video SFP pinout is designed so that one slot can
be populated with a dual transmitter, dual receiver, single
transmitter, single receiver, or a transceiver.
MULTI-RATE AND BACKWARD COMPATIBLE
Gennum’s Video SFPs operate from 50Mb/s to 3Gb/s and
seamlessly run at 3G-SDI, HD-SDI and SD-SDI rates without
any system level intervention required to change the data rate.
ey can also be used for other formats such as Ethernet and
SONET.
MONITORING AND CONTROL
All of Gennum’s Video SFPs are equipped with an I2C
interface for monitoring and control of key parameters such as
module temperature, optical power and bias current.
GO2951
GO2952 -27CH -29CH -31CH -33CH -35CH -37CH -39CH -41CH -43CH -45CH
Channel 1 1271 1291 1311 1331 1351 1371 1391 1411 1431 1451
SINGLES/ TRANSCEIVERS
Dual Transmitter
I2C
LD
LD
TOSA
TOSA
Digital
Diagnostics
Dual Receiver
I2C
LA
LA
ROSA
ROSA
Digital
Diagnostics
TIA
TIA
Transceiver
I2C
LD
TOSA
Digital
Diagnostics
LA
ROSA
TIA
New additions to the industry’s best performing family
of Video SFPs.
www.semtech.com 16
Building on the performance, robustness and reliability of our
third generation optical modules, Gennum is pleased to oer a new
family of CWDM products. All 18 wavelengths are available from 1271nm to 1611nm,
oered as dual channel transmitters, single channel transmitters and transceivers.
ey feature robust error free transmission for distances up to 50 km in a 3Gb/s CWDM
installation – the performance you expect from Gennum including support for video
pathological patterns for SD-SDI, HD-SDI, and 3Gb/s SDI.
GO2953-xxyyCH GO2952-xxCH GO2951-xxCH
Description 3Gb/s SDI Dual Channel
CWDM Transmitter
3Gb/s SDI Single Channel
CWDM Transmitter
3Gb/s SDI CWDM
Transceiver
No. of Optical Inputs 0 0 1
No. of Optical Outputs 2 1 1
3Gb/s Pathological Receive Sensitivity (dBm) – – -22
Optical Output Power (dBm) 0 – 5 / 2 typical 0 – 5 / 2 typical 0 – 5 / 2 typical
Nominal Optical Wavelength (nm) 1271-1611 1271-1611 Tx: 1271-1611
Rx: 1260-1620
Data Rate (Mb/s) 50-3000 50-3000 50-3000
Power (mW) 680 340 650
Temp Range (ºC) 0 to +70 0 to +70 0 to +70
Supply Voltage 3.3 3.3 3.3
Max. Distance @ 3Gb/s-SDI (km) 50 50 50
Package Video SFP Video SFP Video SFP
GO2951
GO2952 -47CH -49CH -51CH -53CH -55CH -57CH -59CH -61CH
Channel 1 1471 1491 1511 1531 1551 1571 1591 1611
CWDM Optical Family
GO2953 -2729CH -3133CH -3537CH -3941CH -4345CH -4749CH -5153CH -5557CH -5961CH -3155CH
Channel 1 1271 1311 1351 1391
1431 1471 1511 1551 1591 1311
Channel 2 1291 1331 1371
1411 1451 1491 1531 1571 1611 1551
DUALS
17 Spring 2012 Gennum Product Guide • Broadcast Video
PCI Express® Redriver Solution
The easiest way to transport SDI redriver over PCI Express
REFERENCE DESIGN KIT AVAILABLE
A complete RDK for video capture is available.
PCI EXPRESS CABLE EXTENSION SOLUTION
Gennum PCIe re-driver solutions provide new alternatives
for system partitioning and extension. e GN1407 quad
PCIe re-driver, and the GN1406 quad retiming re-driver,
allow PCI Express to be extended across long cables.
PCIE RE-DRIVER AND RETIMING RE-DRIVER
e GN1406 provides high-gain equalization (up to 24dB)
for PCI Express for Gen1/Gen2 data rates to compensate
for cable losses. Standard PCI Express cable or lower cost
alternatives may be used. e GN1406 is unique in that
also provides retiming in order to achieve the longest
cable lengths and address impairments such as crosstalk,
source jitter, interpair skew, and reections that cannot be
compensated for by equalization alone. By resetting the jitter
budget through retiming, the GN1406 provides the greatest
robustness and lowest jitter solution available.
GN1406
CDR
4 sets
Digital Control
EQ
Buffered
Ref Clock
Ref Clock
Inputs (4)
Outputs (4)
I2C
Each of the 4 channels in the GN1406
includes independently adjustable input
equalization and output de-emphasis.
GN1407 is similar to GN1406, except that it does not have
the retiming and output de-emphasis features.
A complete reference design kit, including schematics and
board layout, is available from Gennum.
GN1406 GN1407
Number of Channels 4 4
Data Rate Support (Gb/s) Retimed: 2.5, 3.125, 5, 6.25
Equalizer Only: 1.25-8 Gb/s 1.25-8 Gb/s
Equalizer Gain Programmable Up to 24dB
Power Consumption (per channel) Retimed: 100mW
Equalizer Only: 70mW 70mW
Jitter Compensation Serializer & Channel
Deterministic & Random Jitter
Channel
Deterministic Jitter
PCI Express Compliance Protocol Transparent, Electrical Idle Preservation, Supports Spread Spectrum Clocking
and Deserializer Detection by Switchable Input Termination, Fully PCIe compliant
Device Control Individual Channel Control and Monitoring, Control via Micro Using I2C or
Initialize Using Small I2C EEPROM
Output De-Emphasis Programmable up to 20dB –
Package 8x8 QFN
(Footprint Compatible With GN1407)
8x8 QFN
(Footprint Compatible With GN1406)
www.semtech.com 18
PRODUCT FUNCTION EB/RDK PART DESCRIPTION
SERIALIZERS
3G SDI Serializer
EBK-GS2972-00 GS2972 evaluation board; mates with the GS2960A, GS2970A or GS2971A eval. boards
3G SDI Serializer
EBK-GS2962-00 GS2962 evaluation board; mates with the GS2960A, GS2970A or GS2971A eval. boards
HD-SDI Serializer
EBK-GS1582-00 Rev B GS1582 evaluation board
HD-SDI Serializer
EBK-GS1572-00 Rev A GS1572 evaluation board
SD-SDI Serializer
EBK-GS9092A-00 GS9092A evaluation board
DESERIALIZERS
3G SDI Deserializer
EBK-GS2971A-00 GS2971A evaluation board that can mate with the GS2972 evaluation board,
a Spartan-3A evaluation kit or a Cyclone III evaluation kit
3G SDI Deserializer
EBK-GS2970A-00 GS2970A evaluation board; mates with the GS2962 or GS2972 evaluation boards
3G SDI Deserializer
EBK-GS2960A-00 GS2960A evaluation board; mates with the GS2962 or GS2972 evaluation boards
SD-SDI Deserializer
EBK-GS9090B-00 GS9090B evaluation board
SD-SDI Deserializer
EBK-GS9091B-00 GS9091B evaluation board
SERIALIZERS & DESERIALIZERS
3G SDI Transceiver +
VOM
RDK-
3GRXTXOXLNX01
RDK with 2 SDI deserializers, 2 SDI serializers and 1 VOM input; mates with
Spartan-3A evaluation kit; connectors for audio insertion and extraction
3G SDI Transceiver +
VOM
RDK-
3GRXTXOALTR01
RDK with 2 SDI deserializers, 2 SDI serializers and 1 VOM input; mates with
Cyclone III evaluation kit; connectors for audio insertion and extraction
EQUALIZERS, RECLOCKERS, CABLE DRIVERS & DC RESTORE
3G SDI Reclocker
EBK-GS2985-QUAD00 Quad channel evaluation board, to evaluate the GS2985 performance with varying trace
lengths (GS2984x3; GS2985, GS2988x4)
3G SDI Reclocker
EBK-GS2985-01 GS2985 system evaluation board (GS2984, GS2985 and GS2988)
3G SDI Equalizer
EBK-GS2993-00 GS2993 evaluation board (GS2993 only. The GS2993 oers equivalent performance to
the GS2994)
3G SDI Equalizer
EBK-GS2984-00 GS2984 evaluation board (GS2984 only)
3G SDI Equalizer
EBK-GS3440-00 GS3440 evaluation board (GS3440 only)
3G SDI Equalizer
EBK-GS3441-00 GS3441 evaluation board (GS3441 only)
3G Cable Driver
EBK-GS3480-00 GS3480 evaluation board (GS3480 only)
3G SDI Cable Driver
EBK-GS2989-00 GS2989 four output evaluation board (GS2989 only)
3G SDI DC Restore
EBK-GS2914-00 GS2914 evaluation board (GS2914 only)
TIMING
SDI Timing
EBK-GS4911B-00 GS4911B evaluation board (GS4911B, GS4982)
OPTICAL MODULES
3G SDI Optical Module
EBK-GO2900-00 Evaluation board compatible will all optical modules in GO29xx series (Video Pinout)
3G SDI Optical Module
EBK-SDI+VOM-VID00 Optical system evaluation board which integrates GO29xx series optical modules with
GS2994, GS2985 and GS2988 (Video Pinout)
3G SDI Optical Module
EBK-SDI+VOM-MSA00 Optical system evaluation board which integrates GO29xx series optical modules with
GS2994, GS2985 and GS2988 (MSA Pinout)
PCI EXPRESS®
Gen1/2 Re-timing/Re-driver
EBK-GN1406-00 GN1406 evaluation board
Gen 1/2/3 Re-driver
EBK-GN1407-00 GN1407 evaluation board
Gen1/2 Re-timing/Re-driver
RDK-GN1406-PCIE01 GN1406 RDK that includes: host interface board, expansion card, PCIe cable
Gen 1/2/3 Re-driver RDK-GN1407-PCIE01 GN1407 RDK that includes: host interface board, expansion card, PCIe cable
Evaluation Boards/Reference Design Kits (EBK/rdK)
© 2012 Semtech Corporation
® PCI Express is a trademark of PCI SIG Corporation
® HDMI is a trademark of HDMI Licensing, LLC
™DisplayPort are trademarks of Video Electronic Standard Association
Printed in Canada
mygennum.com
Corporate Headquarters
200 Flynn Road, Camarillo, California 93012
phone: (805) 498-2111 • fax: (805) 498-3804 • email: corporate@gennum.com
www.semtech.com