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)： 25/133頁
文件大?。?/td> 1014K
代理商： XRT94L31_07
XRT94L31
25
REV. 1.0.1
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
C7
TXPOH
I
TTL
Transmit Path Overhead Input Port - Input pin.
This pin is used for the Transmit AU-4/VC-4 Mapper POH Processor
Block when TUG-3 mapping is used.This input pin is used to insert the
POH data into the Transmit AU-4/VC-4 Mapper POH Processor blocks
for insertion and transmission via the outbound STS-3 signal.In this
mode, the external circuitry (which is being interfaced to the Transmit
Path Overhead Input Port is suppose to monitor the following output
pins;
TxPOHFrame_n
TxPOHEnable_n
TxPOHClk_n
The TxPOHFrame_n output pin will toggle "High" upon the rising edge of
TxPOHClk_n approximately one TxPOHClk_n period prior to the TxPOH
port being ready to accept and process the first bit within J1 byte (e.g.,
the first POH byte). The TxPOHFrame_n output pin will remain "High"
for eight consecutive TxPOHClk_n periods. The external circuitry should
use this pin to note STS-1 SPE frame boundaries.
The TxPOHEnable_n output pin will toggle "High" upon the rising edge
of TxPOHClk_n approximately one TxPOHClk_n period prior to the
TxPOH port being ready to accept and process the first bit within a given
POH byte. To externally insert a given POH byte:
a. assert the TxPOHIns_n input pin by toggling it "High", and
b. place the value of the first bit (within this particular POH byte) on
this input pin upon the very next rising edge of TxPOHClk_n.
This data bit will be sampled upon the very next falling edge of
TxPOHClk_n. The external circuitry should continue to keep the
TxPOHIns_n input pin "High" and advancing the next bits (within the
POH bytes) upon each rising edge of TxPOHClk_n.
D9
TXPOHCLK
O
TTL
Transmit Path Overhead Input Port - Clock Output pin:
This pin is used for the Transmit AU-4/VC-4 Mapper POH Processor
Block when TUG-3 mapping is used.
This output pin, along with TxPOH, TxPOHEnable, TxPOHIns and
TxPOHFrame function as the Transmit Path Overhead (TxPOH) Input
Port.
The TxPOHFrame and TxPOHEnable output pins are updated upon the
falling edge this clock output signal. The TxPOHIns input pins and the
data residing on the TxPOH input pins are sampled upon the next falling
edge of this clock signal.
B5
TXPOHFRAME
O
TTL
Transmit Path Overhead Input Port - Frame Output pin:
This pin is used for the Transmit AU-4/VC-4 Mapper POH Processor
Block when TUG-3 mapping is used.
This output pin, along with the TxPOH, TxPOHEnable, TxPOHIns and
TxPOHClk function as the Transmit Path Overhead Input Port.If the user
is only inserting POH data via these input pins:
N
OTE
:
In this mode, the TxPOH port will pulse these output pins "High"
whenever it is ready to accept and process the J1 byte (e.g., the
very first POH byte) via this port.
PIN DESCRIPTION OF THE XRT94L31 (REV. B)
PIN #
SIGNAL NAME
I/O
TYPE
DESCRIPTION
相關(guān)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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT94L31ES-L04 功能描述:時鐘合成器/抖動清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel
XRT94L31IB 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Demapper RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
XRT94L31IB-F 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Demapper RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
XRT94L31IB-L 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Mapper / Demapper RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
XRT94L33 制造商:EXAR 制造商全稱:EXAR 功能描述:-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER - SONET REGISTERS
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