参数资料
型号: XRT75R03IVTR
厂商: Exar Corporation
文件页数: 15/92页
文件大小: 0K
描述: IC LIU E3/DS3/STS-1 3CH 128LQFP
标准包装: 750
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: 带卷 (TR)
XRT75R03
xr
REV. 1.0.8
THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
19
72
98
81
STS-1/DS3_0
STS-1/DS3_1
STS-1/DS3_2
I
STS-1/DS3 Select Input - Channel 0
STS-1/DS3 Select Input - Channel 1
STS-1/DS3 Select Input - Channel 2
This input pin, along with the corresponding E3_n input pin is used the to config-
ure a given channel within the XRT75R03 into either the DS3, E3 or STS-1
Modes.
"High" - Configures the corresponding channel to operate in the STS-1 Mode
provided that the corresponding E3_n input pin is pulled "Low".
"Low" - Configures the corresponding channel to operate in DS3 Mode provided
that the corresponding E3_n input pin is pulled "Low".
NOTES:
1.
This input pin is ignored and should be tied to GND if the XRT75R03
has been configured to operate in the Host Mode or if the
corresponding E3_n input pin is pulled "High".
2.
This input pin is internally pulled low.
74
96
83
RLB_0
RLB_1
RLB_2
I
Remote Loop-back - RLB Input - Channel 0:
Remote Loop-back - RLB Input - Channel 1:
Remote Loop-back - RLB Input - Channel 2:
This input pin along with LLB_n is used to configure different Loop-Back modes.
NOTE:
This input pin is ignored and should be connected to GND if the
XRT75R03 is operating in the HOST Mode.
73
97
82
LLB_0
LLB_1
LLB_2
I
Loop-Back Select - LLB Input - Channel 0
Loop-Back Select - LLB Input - Channel 1
Loop-Back Select - LLB Input - Channel 2
Please see description above for RLB_n
102
TEST
****
Factory Test Mode Input Pin
This pin must be connected to GND for normal operation.
NOTE: This input pin is internally pulled "Low".
GENERAL CONTROL PINS
PIN #
SIGNAL NAME
TYPE
DESCRIPTION
RLB_n
0
Loopback Mode
Normal (No Loop-Back) Mode
Analog Loop-Back Mode
LLB_n
0
1
Remote Loop-Back Mode
Digital Local Loop-Back Mode
0
1
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