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FAM-70X1S-T40 Datasheet, PDF (6/14 Pages) Source Photonics, Inc. – OC-192/STM-64 SFF Transponder
OC-192/STM-64 Transponder
40/80km transmission
July 10, 2005
1) locking the TxPICLK to the TxPCLK out of the transponder
2) generating TxPICLK and TxREFCLK from the same clock on the line-card.
The LVPECL RxREFCLK may be at 1/16 or 1/64 of the incoming data rate also.
Table 7 - Reference Clock characteristics
Parameter
Symbol
Min. Typical Max. Unit
Transmitter
Frequency
TxREFCLKP
TxREFCLKN
155.52/622.08
MHz
Frequency
tolerance
-100
+100 ppm
Rise/Fall time
Tr/Tf
300
ps
Duty Cycle
40
50
60
%
Receiver
Frequency
RxREFCLKP
RxREFCLKN
155.52/622.08
MHz
Frequency
tolerance
-100
+100 ppm
Rise/Fall time
Tr/Tf
300
ps
Duty Cycle
40
50
60
%
Notes
Serial data-rate is 9.953Gbps
Serial data-rate is 9.953Gbps
Table 8 - Transmitter/Receiver Parallel Data/Clock Interface
Parameter
Symbol
Level
Transmitter 16-bit parallel Date Input
TxDin[0:15]P/N LVDS
Transmitter Source synchronous
ParallelInput Clock
TxPICLKP/N
LVDS
Transmitter Counter Clock
TxPCLKP/N
LVDS
Receiver 16-bit parallel Date Output
RxDout[0:15]P/N LVDS
Receiver Source synchronous Parallel
Output Clock
RxPOCLKP/N
LVDS
Notes
TxDin0:LSB, TxDin15:MSB
RxDout0:LSB, RxDout15:MSB
Table 9 - Transmitter/Receiver Parallel Data/Clock Timing
Parameter
Symbol
Min.
Typical
Transmitter Data/Clock Timing: SERDES Input Timing at SERDES pin
Duty Cycle
Tw/To
40
TxPICLK
Rise and Fall time Tr/Tf
TxDin
Setup time
Ts
300
Hold time
Th
300
Max.
60
300
Unit
%
ps
ps
ps
Notes
20 – 80%
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