XRT91L34IV-F View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'XRT91L34IV-F' PDF : 38 Pages View PDF
XRT91L34
REV. 1.0.1
QUAD CHANNEL MULTIRATE STS-12/3/1 AND STM-4/1/0 SONET/SDH CDR
2.6 Differential Recovered Data Output Timing
The differential recovered data and clock outputs operating at the STS-12/STM-4 or STS-3/STM-1 or STS-1/
STM-0 datarates will adhere to the data valid output timing shown in Figure 9 ,Table 5, Table 6, and Table 7.
FIGURE 9. DIFFERENTIAL RECOVERED OUTPUT TIMING
tRXCLKO
RXCLKO[3:0]P/N
RXDO[3:0]P/N D1
D2
D3
D4
D5
tRXDO_VALID
SYMBOL
tRXCLKO
tRXDO_VALID
TABLE 5: RECOVERED DATA OUTPUT TIMING (STS-12/STM-4 OPERATION)
PARAMETER
Recovered high-speed output clock period
MIN
TYP
1.608
Time the data is valid on RXDO[3:0]P/N before and after the 0.5
rising edge of RXCLKO[3:0]P/N
MAX
UNITS
ns
ns
SYMBOL
tRXCLKO
tRXDO_VALID
TABLE 6: RECOVERED DATA OUTPUT TIMING (STS-3/STM-1 OPERATION)
PARAMETER
MIN
TYP
Recovered high-speed output clock period
6.43
Time the data is valid on RXDO[3:0]P/N before and after the 2.8
rising edge of RXCLKO[3:0]P/N
MAX
UNITS
ns
ns
SYMBOL
tRXCLKO
tRXDO_VALID
TABLE 7: RECOVERED DATA OUTPUT TIMING (STS-1/STM-0 OPERATION)
PARAMETER
Recovered high-speed output clock period
MIN
TYP
19.29
Time the data is valid on RXDO[3:0]P/N before and after the 8.3
rising edge of RXCLKO[3:0]P/N
MAX
UNITS
ns
ns
19
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