xrt91l31 Exar Corporation, xrt91l31 Datasheet - Page 22

• Manufacturer Part Number: xrt91l31
• Description: Sts-12/stm-4 Or Sts-3/stm-1 Sonet/sdh Transceiver
• Manufacturer: Exar Corporation

XRT91L31
STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
The receive parallel data output from the STS-12/STM-4 or STS-3/STM-1 receiver will adhere to the setup and
hold times shown in
specifications.
F
2.10
IGURE
t
t
t
t
RXDO_VALID
RXDO_VALID
PULSE_WID
PULSE_WID
t
t
S
RXPCLKO
S
RXPCLKO
t
t
10. R
RXCLK
RXCLK
YMBOL
YMBOL
Receive Parallel Data Output Timing
FRAMEPULSE
ECEIVE
RXDO[7:0]
RXPCLKO
T
T
ABLE
ABLE
RXIP
RXIN
P
Figure 10 ,Table
9: R
10: R
ARALLEL
Time the data is valid on RXDO[7:0] and FRAMEPULSE
Time the data is valid on RXDO[7:0] and FRAMEPULSE
Pulse width of frame detection pulse on FRAMEPULSE
Pulse width of frame detection pulse on FRAMEPULSE
A1
ECEIVE
ECEIVE
Receive parallel data output byte clock period
Receive parallel data output byte clock period
before and after the rising edge of RXPCLKO
before and after the rising edge of RXPCLKO
Receive high-speed serial clock period
Receive high-speed serial clock period
O
UTPUT
P
P
ARALLEL
ARALLEL
t
RXCLK
T
9, and
A2
IMING
P
P
D
ARAMETER
ARAMETER
t
RXPCLKO
D
ATA
ATA
Table
O
O
UTPUT
UTPUT
22
10.
A2
Table 11
T
T
IMING
IMING
t
t
RXDO_VALID
(STS-12/STM-4 O
PULSE_WID
(STS-3/STM-1 O
shows the PECL and TTL output timing
A2
M
M
22
4
IN
IN
A2
PERATION
PERATION
1.608
12.86
12.86
6.43
51.44
51.44
T
T
YP
YP
)
)
M
M
AX
AX
REV. 1.0.0
ns
ns
ns
ns
ns
ns
ns
ns
U
U
NITS
NITS