參數(shù)資料
型號: XRT94L31_07
廠商: Exar Corporation
英文描述: 3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
中文描述: 3通道DS3/E3/STS-1給STS-3/STM-1映射器集成電路
文件頁數(shù): 119/133頁
文件大?。?/td> 1014K
代理商: XRT94L31_07
XRT94L31
119
REV. 1.0.1
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
N
OTE
:
The values for t15, t16 and t17 can be found in
Table 23
.
1.6
TRANSMIT POH OVERHEAD INPUT PORT
The Transmit POH Overhead Input Port is used to insert the users own value for the POH bytes into either the
outbound STS-1 SPE data-stream (which is output via the Transmit STS-3/STM-1 data-stream or via the
outbound STS-1 SPE data-stream (which is output via the Transmit STS-1 data-stream).
N
OTE
:
The TxPOHIns and the TxPOH input pins are sampled (by the Transmit POH Overhead Input Port) upon the rising
edge of TxPOHClk. All of the remaining signals (e.g., TxPOHFrame and TxPOHEnable) are updated upon the
falling edge of TxPOHClk.
The timing wave-form and information for the Transmit POH Overhead Input Port is presented below.
F
IGURE
22. I
LLUSTRATION
OF
T
IMING
W
AVE
-
FORM
OF
THE
T
RANSMIT
TOH O
VERHEAD
I
NPUT
P
ORT
T
ABLE
23: T
IMING
I
NFORMATION
FOR
THE
T
RANSMIT
TOH O
VERHEAD
I
NPUT
P
ORT
S
YMBOL
D
ESCRIPTION
M
IN
.
T
YP
.
M
AX
.
t15
Falling edge of TxTOHClk to rising edge of TxTOHFrame and TxTOHEn-
able output delay
-0.5ns
0.6ns
t16
TxTOHIns to rising edge of TxTOHClk set-up time
4ns
t17
TxTOH Data to rising edge of TxTOHClk set-up time
4ns
TxTOH
TxTOHIns
TxTOHClk
TxTOHFrame
TxTOHEnable
t15
t16
t17
相關PDF資料
PDF描述
XRT94L31 3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER
XRT94L31IB 3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER
XRT94L43A SONET/SDH OC-12 TO 12XDS3/E3 MAPPER
XRT94L43 SONET/SDH STS-12/STM-4 TO E3/DS3/STS-1 MAPPER/DEMAPPER
XRT94L43IB SONET/SDH STS-12/STM-4 TO E3/DS3/STS-1 MAPPER/DEMAPPER
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