参数资料
型号: XRT75R03DIV-F
厂商: Exar Corporation
文件页数: 97/135页
文件大小: 0K
描述: IC LIU E3/DS3/STS-1 3CH 128LQFP
标准包装: 72
类型: 线路接口装置(LIU)
驱动器/接收器数: 3/3
规程: DS3,E3,STS-1
电源电压: 3.135 V ~ 3.465 V
安装类型: 表面贴装
封装/外壳: 128-LQFP
供应商设备封装: 128-LQFP(14x20)
包装: 托盘
XRT75R03D
60
THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCRONIZER
REV. 1.0.4
5
RxON Ch 1
R/W
0
Receiver Section ON - Channel 1
This READ/WRITE bit-field is used to either turn on or turn off the
Receive Section of Channel 1. If the user turns on the Receive Sec-
tion, then Channel 1 will begin to receive the incoming DS3, E3 or
STS-1 data-stream via the RTIP_1 and RRING_1 input pins.
Conversely, if the user turns off the Receive Section, then the entire
Receive Section (e.g., AGC and Receive Equalizer Block, Clock
Recovery PLL, etc) will be powered down.
0 - Shuts off the Receive Section of Channel 1.
1 - Turns on the Receive Section of Channel 1.
4
RxON Ch 0
R/W
0
Receiver Section ON - Channel 0
This READ/WRITE bit-field is used to either turn on or turn off the
Receive Section of Channel 0. If the user turns on the Receive Sec-
tion, then Channel 0 will begin to receive the incoming DS3, E3 or
STS-1 data-stream via the RTIP_0 and RRING_0 input pins.
Conversely, if the user turns off the Receive Section, then the entire
Receive Section (e.g., AGC and Receive Equalizer Block, Clock
Recovery PLL, etc) will be powered down.
0 - Shuts off the Receive Section of Channel 0.
1 - Turns on the Receive Section of Channel 0.
3
Reserved
R/O
0
2
TxON Ch 2
R/W
0
Transmit Driver ON - Channel 2
This READ/WRITE bit-field is used to either turn on or turn off the
Transmit Driver associated with Channel 2. If the user turns on the
Transmit Driver, then Channel 2 will begin to transmit DS3, E3 or
STS-1 pulses on the line via the TTIP_2 and TRING_ 2 output pins.
Conversely, if the user turns off the Transmit Driver, then the TTIP_2
and TRING_2 output pins will be tri-stated.
0 - Shuts off the Transmit Driver associated with Channel 2 and tri-
states the TTIP_2 and TRING_ 2 output pins.
1 - Turns on or enables the Transmit Driver associated with Channel
2.
NOTE: If the user wishes to exercise software control over the state
of the Transmit Driver associated with Channel 2, then it is
imperative that the user pull the TxON_2 (pin 125) to a logic
"High" level.
BIT
NUMBER
NAME
TYPE
DEFAULT
VALUE
DESCRIPTION
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XRT75R03IV-F IC LIU E3/DS3/STS-1 3CH 128LQFP
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