CA16-Type 2.5 Gbits/sDWDMTransponder with
16-Channel 155 Mbits/s Multiplexer/Demultiplexer
Advance Data Sheet
March 2001
Timing Characteristics (continued)
Transmitter Data Input Timing (continued)
Table 9. Transmitter ac Timing Characteristics
Symbol
Description
Min
Max
Unit
tSTXD
tHTXD
—
TxD[0:15] Setup Time w. r. t. PICLK
TxD[0:15] Hold Time w. r. t. PICLK
PCLKP/N Duty Cycle
1.5
0.5
40
40
—
—
—
55
60
5
ns
ns
%
—
PICLKP/N Duty Cycle
%
tPPICLK
PICLK-to-PICLK Drift After FIFO Centered
ns
tSTXD
tHTXD
PICLKP
TXD[0:15]
Figure 10. ac Input Timing
Table 10. Receiver ac Timing Characteristics
Symbol
Description
Min
Max
Unit
—
POCLK Duty Cycle
45
—
–1
2
55
1.0
1
%
1
—
RxD[15:0] Rise and Fall Time
ns
ns
ns
ns
tPPOUT
tSPOUT
tHPOUT
POCLK Low to RxD[15:0] Valid Propagation Delay
RxD[15:0] and FP Setup Time w. r. t. POCLK
RxD[15:0] and FP Hold Time w. r. t. POCLK
—
—
2
1. 20% to 80%; 330 Ω to GND.
POCLKP
tPPOUT
tSPOUT
tHPOUT
FP
RXD[15:0]
Figure 11. Receiver Output Timing Diagram
24
Agere Systems Inc.
AGERE [ AGERE SYSTEMS ]
