参数资料
型号: XRT75R03DIV-F
厂商: Exar Corporation
文件页数: 53/135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
20
THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCRONIZER
REV. 1.0.4
62
ICT
I
In-Circuit Test Input:
Setting this pin "Low" causes all digital and analog outputs to go into a high-
impedance state to allow for in-circuit testing. For normal operation, set this pin
"High".
NOTE: This pin is internally pulled “High".
70
HOST/HW
I
HOST/Hardware Mode Select:
Tie this pin “High” to configure the XRT75R03D in HOST mode. Tie this “Low” to
configure in Hardware mode.
When the XRT75R03D is configured in HOST mode, the states of many of the
discrete input pins are controlled by internal register bits.
NOTE: This pin is internally pulled up.
CONTROL AND ALARM INTERFACE
PIN #
SIGNAL NAME
TYPE
DESCRIPTION
122
RXA
****
External Resistor of 3.01K
± 1%.
Should be connected between RxA and RxB for internal bias.
123
RXB
****
External Resistor of 3.01K
± 1%.
Should be connected between RxA and RxB for internal bias.
JITTER ATTENUATOR INTERFACE
PIN #
SIGNAL NAME
TYPE
DESCRIPTION
44
JA0
I
Jitter Attenuator Select 0:
In Hardware Mode, this pin along with pin 42 configures the Jitter Attenuator as
shown in the table below.
NOTES:
1.
The setting of these input pins applies globally to all three (3) channels
in the XRT75R03D.
2.
This input pin is ignored and should be tied to GND if the XRT75R03D
is configured to operate in the Host Mode.
GENERAL CONTROL PINS
PIN #
SIGNAL NAME
TYPE
DESCRIPTION
1
JA0
0
1
JA1
0
1
0
Jitter Attenuator Disabled
Mode
FIFO Depth = 16 bits
FIFO Depth = 32 bits
SONET/SDH De-Sync
Mode
相关PDF资料
PDF描述
XRT75R03IV-F IC LIU E3/DS3/STS-1 3CH 128LQFP
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