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Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON
Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s
technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA
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is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
September 2010
© 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com
FIN1108 • Rev. 1.0.4
FIN1108 — LVDS 8-Port, High-Speed Repeater
FIN1108 — LVDS 8-Po rt, High-Speed Repeater
Features
Greater than 800Mbps Data Rate
3.3V Power Supply Operation
3.5ps Maximum Random Jitter
and 135ps Maximum Deterministic Jitter
Wide Rail-to-Rail Common Mode Range
LVDS Receiver Inputs Accept LVPECL, HSTL,
and SSTL-2 Directly
Ultra-low Power Consumption
20ps Typical Channel-to-Channel Skew
Power-Off Protection
7.5kV HBM ESD Protection
Meets or Exceeds the TIA/EIA-644-A LVDS
Standard
48-Lead TSSOP Package
Open-Circuit Fail-Safe Protection
VBB Reference Output
Descriptions
This eight-port repeater is designed for high-speed
interconnects utilizing Low Voltage Differential
Signaling (LVDS) technology.
The FIN1108 accepts and outputs LVDS levels with a
typical differential output swing of 330mV, which
provides low EMI at ultra-low power dissipation even
at high frequencies. The FIN1108 provides a VBB
reference for AC coupling on the inputs. In addition,
the FIN1108 can directly accept LVPECL, HSTL, and
SSTL-2 for translation to LVDS.
Ordering Information
Part Number Operating
Temperature Range Package Packing
Method
FIN1108MTD -40 to +85°C 48-Lead, Thin Shrink Small Outline Package (TSSOP),
JEDEC MO-153, 6.1mm Wide Tube
FIN1108MTDX -40 to +85°C 48-Lead, Shrink Small Outline Package (TSSOP),
JEDEC MO-153, 6.1mm Wide Tape and Reel
© 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com
FIN1108 • Rev. 1.0.4 2
FIN1108 — LVDS 8-Port, High-Speed Repeater
Pin Configuration
Figure 1. Pin Configuration
Pin Definitions
Pin # Name Description
1,2,23,37,36 GND Ground.
3 /EN12 Inverting driver enable for DOUT1 and DOUT2.
4,7,8,11,14,17,18,21 RIN1-,RIN2-,RIN3-,RIN5-RIN6-,RIN7-,RIN8- Inverting LVDS input.
5,6,9,10,15,16,19,20 RIN1+,RIN2+,RIN3+,RIN5+RIN6+,RIN7+,RIN8+ Non-inverting LVDS input.
12,25,26,47,48 VCC Power supply pin.
13 EN Driver enable for all outputs.
22 /EN34 Inverting driver enable for DOUT3 and DOUT4.
24 VBB Reference voltage output.
27 /EN56 Inverting driver enable for DOUT5 and DOUT6.
28,31,32,35,38,41,42,45 DOUT8-,DOUT7-,DOUT6-,DOUT5-DOUT4-
,DOUT3-,DOUT2-,DOUT1- Inverting drive output.
29,30,33,34,39,40,43,44 DOUT8+,DOUT7+,DOUT6+,DOUT5+DOUT4+,
DOUT3+,DOUT2+,DOUT1+ Non-inverting drive output.
46 /EN78 Inverting driver enable for DOUT7 and DOUT8.
© 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com
FIN1108 • Rev. 1.0.4 3
FIN1108 — LVDS 8-Port, High-Speed Repeater
Functional Diagram
Figure 2. Functional Diagram
Table 1. Function Table
Inputs Outputs
EN /ENXX DIN+ D
IN- D
OUT+ D
OUT-
HIGH LOW HIGH LOW HIGH LOW
HIGH LOW LOW HIGH LOW HIGH
HIGH LOW Fail-Safe HIGH LOW
Don’t Care HIGH Don’t Care Don’t Care High Impedance High Impedance
LOW Don’t Care Don’t Care Don’t Care High Impedance High Impedance
© 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com
FIN1108 • Rev. 1.0.4 4
FIN1108 — LVDS 8-Port, High-Speed Repeater
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device
reliability. The absolute maximum ratings are stress ratings only.
Symbol Parameter Min. Max. Unit
VCC Supply Voltage -0.5 +4.6 V
VIN LVDS DC Input Voltage -0.5 +4.6 V
VOUT LVDS DC Output Voltage -0.5 +4.6 V
IOSD Driver Short-Circuit Current Continuous 10 mA
TSTG Storage Temperature Range -65 +150 °C
TJ Junction Temperature +150 °C
TL Lead Temperature, Soldering, 10 seconds +260 °C
ESD Human Body Model, JESD22-A114 7500 V
Machine Model, JEDEC: JESD22-A115 400
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to Absolute Maximum Ratings.
Symbol Parameter Min. Max. Unit
VCC Supply Voltage 3.0 3.6 V
⏐VID⏐ Magnitude of Differential Voltage 100 mV to VCC V
VIC Common Mode Voltage Range (0V + ⏐VID⏐/2) (VCC - ⏐VID⏐/2) V
TA Operating Temperature -40 +85 °C
© 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com
FIN1108 • Rev. 1.0.4 5
FIN1108 — LVDS 8-Port, High-Speed Repeater
DC Electrical Characteristics
Typical values are at TA=25°C with VCC=3.3V.
Symbol Parameter Conditions Min. Typ. Max. Units
VTH Differential Input
Threshold HIGH VIC=+0.05V, + 1.2V, or VCC - 0.05V
Figure 3 100 mV
VTL Differential Input
Threshold LOW VIC=+0.05V, + 1.2V, or VCC - 0.05V
Figure 3 -100 mV
VIH Input HIGH Voltage
(EN or /EN) 2.0 VCC V
VIL Input LOW Voltage
(EN or /EN) GND 0.8 V
VOD Output Differential
Voltage
RL=100Ω, Driver Enabled,
Figure 4
250 330 450 mV
ΔVOD VOD Magnitude Change
from Differential
LOW-to-HIGH 25 mV
VOS Offset Voltage 1.125 1.230 1.375 V
ΔVOS Offset Magnitude
Change from Differential
LOW-to-HIGH 25 mV
IOS Short-Circuit Output
Current
DOUT+=0V and DOUT-=0V,
Driver Enabled -3.4 -6.0 mA
VOD=0V, Driver Enabled ±3.4 ±6.0 mA
IIN Input Current (EN, /EN,
DINx+, DINx-) VIN=0V to VCC,
Other Input=VCC or 0V
for Differential Input ±20 µA
IOFF Power-off Input or
Output Current VCC=0V, VIN or VOUT=0V to 3.6V ±20 µA
ICCZ Disabled Power
Supply Current Drivers Disabled 20 mA
ICC Power Supply Current Drivers Enabled, Any Valid Input
Condition 80 mA
IOZ Disabled Output
Leakage Current Driver Disabled, DOUT+=0V, to 3.6V
or DOUT-=0V to 3.6V ±20 µA
VIC Common Mode
Voltage Range V
ID/2 VCC-
(VID/2) V
CIN Input Capacitance Enable Input 3
pF
LVDS Input 3
COUT Output Capacitance 3 pF
VBB Output Reference
Voltage VCC=3.3V, IBB=0 to -275μA 1.125 1.200 1.375 V
© 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com
FIN1108 • Rev. 1.0.4 6
FIN1108 — LVDS 8-Port, High-Speed Repeater
AC Electrical Characteristics
Typical values are at TA=25°C with VCC=3.3V.
Symbol Parameter Conditions Min. Typ. Max. Units
tPLHD Differential Output
Propagation Delay
LOW-to-HIGH
RL=100Ω, CL=5pF
VID=200mV to 450mV,
VIC= VID/2 to VCC – (VID/2)
Duty Cycle=50%
Figure 3
0.75 1.10 1.75 ns
tPHLD Differential Output
Propagation Delay
HIGH-to-LOW 0.75 1.10 1.75 ns
tTLHD Differential Ou tput Rise
Time (20% to 80%) 0.29 0.40 0.58 ns
tTHLD Differential Output Fall
Time (80% to 20%) 0.29 0.40 0.58 ns
tSK(P) Pulse Skew
|tPLH - tPHL| 0.02 0.20 ns
tSK(LH) Channel-to-Channel
Skew(1) 0.02 0.15
ns
tSK(HL) 0.02 0.15
tSK(PP) Part-to-Part Skew(2) 0.5 ns
fMAX Maximum Frequency(3)(4) 400 >630 MHz
tPZHD Differential Output
Enable Time from
Z to HIGH
RL=100Ω, CL=5pF
Figure 4, Figure 5
3.0 5.0 ns
tPZLD Differential Output
Enable Time from
Z to LOW 3.1 5.0 ns
tPHZD Differential Output
Disable Time from
HIGH to Z 2.2 5.0 ns
tPLZD Differential Output
Disable Time from
LOW to Z 2.5 5.0 ns
tDJ LVDS Data Jitter,
Deterministic VID=300mV, PRBS=223-1,
VIC=1.2V at 800Mbps 80 135 ps
tRJ LVDS Clock Jitter,
Random (RMS) VID=300mV
VIC=1.2V at 400Mbps 1.9 3.5 ps
Notes:
1. tSK(LH), tSK(HL) is the skew between specified outputs of a single device when the outputs have identical loads and
are switching in the same direction.
2. tSK(PP) is the magnitude of the difference in propagation delay times between any specified terminals of two
devices switching in the same direction (either LOW-to-HIGH or HIGH-to-LOW) when both devices operate wi th
the same supply voltage, same temperature, and have identical test circuits.
3. Passing criteria for maximum frequency is the output VOD >250mV and the duty cycle is better than 45% / 55%
with all channels switching.
4. Output loading is transmission-line environment only; CL is <1pF of stray test fixture capacitance.
© 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com
FIN1108 • Rev. 1.0.4 7
FIN1108 — LVDS 8-Port, High-Speed Repeater
Test Diagrams
Figure 3. Differential Receiver Voltage
Definitions Figure 4. Differential Driver DC Test Circuit
Notes: All LVDS input pulses have
frequency=10MHz, tR or tF<0.5ns.
CL includes all probe and jig capacitance.
Figure 5. Differential Driver Propagation Delay
and Transition Time Test Circuit Figure 6. AC Waveform
Notes: All LVTTL input pulses have
frequency=10MHz, tR or tF<2ns.
CL includes all probe and jig capacitance.
Figure 7. Differential Driver Enable and Disable
Circuit Figure 8. Enable and Disable AC Waveforms
© 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com
FIN1108 • Rev. 1.0.4 8
FIN1108 — LVDS 8-Port, High-Speed Repeater
Physical Dimensions
Figure 9. 48-Lead, Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Pack age drawings are provided as a servic e t o customers c onsidering Fairchild components. Drawi ngs may change in any manner
without notice. P l ease note the revision and/or date on the drawing and contac t a Fairchild Semic onductor representat i ve to verify
or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically
the warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/
© 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com
FIN1108 • Rev. 1.0.4 9
FIN1108 — LVDS 8-Port, High-Speed Repeater
www.onsemi.com
1
ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent
coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.
ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,
regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer
application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not
designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification
in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized
application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such
claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This
literature is subject to all applicable copyright laws and is not for resale in any manner.
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