Product information is current as of publication date. The product conforms Copyright © 2006, 2007, 2010 Pletronics
Inc.
to specifications per the terms of the Pletronics standard warranty. Production
processsing does not necessarily include testing of all parameters.
LV77D Series 2.5 V
LVDS Clock Oscillators
January 2010
• Pletronics’ LV77D Series is a quartz crystal
controlled precision square wave generator with
an LVDS output.
• The package is designed for high density surface
mount designs.
• Low cost mass produced oscillator.
• Tape and Reel or cut tape packaging is available.
• 5 x 7 mm LCC Ceramic Package
• Enable/Disable Function on pad 1
• Disable function includes low standby power
mode
• Low Jitter
<= 80MHz there are only limited frequencies available (others are long lead times)
25.00MHz 40.00MHz 50.00MHz 53.125MHz
62.50MHz 74.175824MHz 74.25MHz 80.00MHz
Pletronics Inc. certifies this device is in accordance with the
RoHS 6/6 (2002/95/EC) and WEEE (2002/96/EC) directives.
Pletronics Inc. guarantees the device does not contain the following:
Cadmium, Hexavalent Chromium, Lead, Mercury, PBB’s, PBDE’s
Weight of the Device: 0.16 grams
Moisture Sensitivity Level: 1 As defined in J-STD-020D.1
Second Level Interconnect code: e4
Absolute Maximum Ratings:
Parameter Unit
VCC Supply Voltage -0.5V to +5.0V
Vi Input Voltage -0.5V to VCC + 0.5V
Vo Output Voltage -0.5V to VCC + 0.5V
Thermal Characteristics
The maximum die or junction temperature is 155oC
The thermal resistance junction to board is 30 to 50oC/Watt depending on the solder pads, ground plane
and construction of the PCB.
LV77D Series 2.5 V
LVDS Clock Oscillators
January 2010
www.pletronics.com 425-776-1880 2
Part Number:
LV77 45 D E W -125.0M -XX Part Marking:
PLE LV77
FF.FFF M
C YMDXX
or
LV7XYWWXX
FF.FFF M
C PLE XXX
Packaging code or blank
T250 = 250 per Tape and Reel
T500 = 500 per Tape and Reel
T1K = 1000 per Tape and Reel
Frequency in MHz
Supply Voltage VCC
W = 2.5V +_ 10%
Optional Enhanced OTR
Blank = Temp. range -10 to +70oC
E = Temp. range -40 to +85oC
Series Model
Frequency Stability
45 = +_ 50 ppm
44 = +_ 25 ppm
20 = +_ 20 ppm
Series Model
Marking Legend:
PLE = Pletronics
FF.FFF M = Frequency in MHz
YYWW or YWW or YMD = Date of Manufacture (year and week, or year-month-day)
All other marking is internal factory codes
Specifications such as frequency stability, supply voltage and operating temperature range, etc. are
not identified from the marking. External packaging labels and packing list will correctly identify the
ordered Pletronics part number.
Codes for Date Code YMD
Code 6 7 8 9 0 1 2
Year 2006 2007 2008 2009 2010 2011 2012
Code A B C D E F G H J K L M
Month JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Code123456789ABC
Day 123456789101112
Code D E F G H J K L M N P R
Day 13 14 15 16 17 18 19 20 21 22 23 24
Code T U V W X Y Z
Day 25 26 27 28 29 30 31
LV77D Series 2.5 V
LVDS Clock Oscillators
January 2010
www.pletronics.com 425-776-1880 3
Electrical Specification for 2.50V +_10% over the specified temperature range and
the frequency range of 1 to 250 MHz
Item Min Max Unit Condition
Frequency Accuracy “45"-50 +50 ppm For all supply voltages, load changes, aging for 1
year, shock, vibration and temperatures
“44"-25 +25
“20"-20 +20
Output Waveform LVDS
Output High Level -- 1.60 Volts See load circuit R1 = 50 ohms
Output Low Level 0.90 -- Volts
Differential Output (VOD) 250 450 mVolts
Differential Output Error (dVOS)-- 50 mVolts
Output Offset Voltage (VOS) 1.125 1.375 Volts > 80 MHz See load circuit R1 = 50 ohms
1.125 1.500 Volts < 80 MHz
Output Symmetry 45 55 % Referenced to 50% of amplitude or crossing point
Output TRISE and TFALL 300 700 pS Vth is 20% and 80% of waveform > 80 MHz
400 900 pS Vth is 20% and 80% of waveform < 80 MHz
Jitter - 0.6 pS RMS Measured from 12KHz to 20MHz from Fnominal
- 2.8 Measured from 10Hz to 1MHz from Fnominal
Vcc Supply Current - 63 mA > 80 MHz Includes current of properly
terminated device
- 40 mA < 80 MHz
Enable/Disable Internal Pull-up 50 - Kohm To Vcc (equivalent resistance)
V disable - 0.4 Volts Referenced to Ground
V enable 2.0 - Volts
Output leakage VOUT = VCC -10 +10 uA Pad 1 low, device disabled
VOUT = 0V -10 +10 uA
Enable - 10 nS Time for output to reach a logic state
Disable time - 10 nS Time for output to reach a high Z state
Start up time - 5 mS > 80 MHz Measured from the time
Vcc = 2.2V
- 3 mS < 80 MHz
Operating Temperature Range -10 +70 oC Standard Temperature Range
-40 +85 oCExtended Temperature Range “E” Option
Storage Temperature Range -55 +125 oC
Standby Current ICC - 3 uA Pad 1 low, device disabled > 80 MHz
- 1.5 mA Pad 1 low, device disabled < 80 MHz
Specifications with Pad 1 E/D open circuit
LV77D Series 2.5 V
LVDS Clock Oscillators
January 2010
www.pletronics.com 425-776-1880 4
-160
-140
-120
-100
-80
-60
-40
-20
0
10 1,000 100,000 10,000,000
Frequency (Hz)
dBc/Hz
Showing Out Measurement only
Trise
Symmetry
20%
Vlow
50%
80%
Vhigh
Tfall
Out*
Out
Typical Phase-Noise Response
Load Circuit
Test Waveform
LV77D Series 2.5 V
LVDS Clock Oscillators
January 2010
www.pletronics.com 425-776-1880 5
Reliability: Environmental Compliance
Parameter Condition
Mechanical Shock MIL-STD-883 Method 2002, Condition B
Vibration MIL-STD-883 Method 2007, Condition A
Solderability MIL-STD-883 Method 2003
Thermal Shock MIL-STD-883 Method 1011, Condition A
ESD Rating
Model Minimum Voltage Conditions
Human Body Model 1500 MIL-STD-883 Method 3115
Charged Device Model 1000 JESD 22-C101
Package Labeling
Label is 1" x 2.6" (25.4mm x 66.7mm) Label is 1" x 2.6" (25.4mm x 66.7mm)
Font is Courier New Font is Arial
Bar code is 39-Full ASCII
LV77D Series 2.5 V
LVDS Clock Oscillators
January 2010
www.pletronics.com 425-776-1880 6
Mechanical:
Inches mm
A 0.276 +_0.006 7.00 +_0.15
B 0.197 +_0.006 5.00 +_0.15
C 0.067 max 1.70 max
D10.038 0.96
E10.200 5.08
F10.004 0.10
G10.050 1.27
H10.055 1.40
Contacts (pads):
Gold 11.8 to 39.4µinches (0.3 to 1.0µm)
over
Nickel 50 to 350µinches (1.27 to 8.89µm)
1 Typical dimensions
Not to Scale
I10.024 0.60
J10.004R 0.10R
K10.008R 0.20R
Pad Function Note
1 Output
Enable/Disable When this pad is not connected the oscillator shall operate.
When this pad is <0.30 volts, the output will be inhibited (high impedance state.)
Recommend connecting this pad to VCC if the oscillator is to be always on.
2 No connect There is no internal connection to this pad
3 Ground (GND)
4 Output The outputs must be terminated, 100 ohms between the outputs is the ideal
termination.
5 Output*
6 Supply Voltage
(VCC)Recommend connecting appropriate power supply bypass capacitors as close as
possible.
Layout and application information
Recommend connecting Pad 1 and Pad 2 together to permit the design to accept Enable/Disable on both
input pads
For Optimum Jitter Performance, Pletronics recommends:
• a ground plane under the device
• no large transient signals (both current and voltage) should be routed under the device
• do not layout near a large magnetic field such as a high frequency switching power supply
• do not place near piezoelectric buzzers or mechanical fans.
LV77D Series 2.5 V
LVDS Clock Oscillators
January 2010
www.pletronics.com 425-776-1880 7
260°C Maximum
10 Seconds Maximum
215°C±10°C
Approximately 50 Seconds
Allowed rate of temperature change
Maximum 4°C per second
120 to 160 Seconds
100
150
200
250
Temperature (°C)
175°C±10°C
Reflow Cycle (typical for lead free processing)
The part may be reflowed 2 times without degradation.
Tape and Reel: available for quantities of 250 to 1000 per reel, cut tape for < 250
Constant Dimensions Table 1
Tape
Size D0 D1
Min E1 P0 P2 S1
Min T
Max
T1
Max
8mm
1.5
+0.1
-0.0
1.0
1.75
+_0.1
4.0
+_0.1
2.0
+_0.05
0.6 0.6 0.1
12mm 1.5
16mm 1.5 2.0
+_0.1
24mm 1.5
Variable Dimensions Table 2
Tape
Size B1
Max E2 Min F P1 T2
Max W
Max Ao, Bo &
Ko
16 mm 12.1 14.25 7.5 +_0.1 8.0 +_ 0.1 8.0 16.3 Note 1
Note 1: Embossed cavity to conform to EIA-481-B Dimensions in mm Not to scale
REEL DIMENSIONS
A inches 7.0 10.0 13.0
mm 177.8 254.0 330.2
B inches 2.50 4.00 3.75
mm 63.5 101.6 95.3 Tape
Width
C mm 13.0 +0.5 / -0.2
D mm 16.4
+2.0
-0.0
16.4
+2.0
-0.0
16.4
+2.0
-0.0
16.0
Reel dimensions may vary from the above
LV77D Series 2.5 V
LVDS Clock Oscillators
January 2010
www.pletronics.com 425-776-1880 8
IMPORTANT NOTICE
Pletronics Incorporated (PLE) reserves the right to make corrections, improvements, modifications and
other changes to this product at anytime. PLE reserves the right to discontinue any product or service
without notice. Customers are responsible for obtaining the latest relevant information before placing
orders and should verify that such information is current and complete. All products are sold subject to
PLE’s terms and conditions of sale supplied at the time of order acknowledgment.
PLE warrants performance of this product to the specifications applicable at the time of sale in accordance
with PLE’s limited warranty. Testing and other quality control techniques are used to the extent PLE
deems necessary to support this warranty. Except where mandated by specific contractual documents,
testing of all parameters of each product is not necessarily performed.
PLE assumes no liability for application assistance or customer product design. Customers are
responsible for their products and applications using PLE components. To minimize the risks associated
with the customer products and applications, customers should provide adequate design and operating
safeguards.
PLE products are not designed, intended, authorized or warranted to be suitable for use in life support
applications, devices or systems or other critical applications that may involve potential risks of death,
personal injury or severe property or environmental damage. Inclusion of PLE products in such
applications is understood to be fully at the risk of the customer. Use of PLE products in such applications
requires the written approval of an appropriate PLE officer. Questions concerning potential risk
applications should be directed to PLE.
PLE does not warrant or represent that any license, either express or implied, is granted under any PLE
patent right, copyright, artwork or other intellectual property right relating to any combination, machine or
process which PLE product or services are used. Information published by PLE regarding third-party
products or services does not constitute a license from PLE to use such products or services or a warranty
or endorsement thereof. Use of such information may require a license from a third party under the
patents or other intellectual property of the third party, or a license from PLE under the patents or other
intellectual property of PLE.
Reproduction of information in PLE data sheets or web site is permissible only if the reproduction is
without alteration and is accompanied by associated warranties, conditions, limitations and notices.
Reproduction of this information with alteration is an unfair and deceptive business practice. PLE is not
responsible or liable for such altered documents.
Resale of PLE products or services with statements different from or beyond the parameters stated by
PLE for that product or service voids all express and implied warranties for the associated PLE product or
service and is an unfair or deceptive business practice. PLE is not responsible for any such statements.
Contacting Pletronics Inc.
Pletronics Inc. Tel: 425-776-1880
19013 36th Ave. West Fax: 425-776-2760
Lynnwood, WA 98036-5761 USA E-mail: ple-sales@pletronics.com
URL: www.pletronics.com
Copyright © 2006, 2007, 2010 Pletronics Inc.
