参数资料
型号: XRT82D20IWTR
厂商: Exar Corporation
文件页数: 24/27页
文件大小: 0K
描述: IC LIU EI SGL 28SOJ
标准包装: 1,000
类型: 线路接口装置(LIU)
驱动器/接收器数: 1/1
规程: E1
电源电压: 3.135 V ~ 3.465 V
安装类型: 表面贴装
封装/外壳: 28-BSOJ
供应商设备封装: 28-SOJ
包装: 带卷 (TR)
XRT82D20
5
SINGLE CHANNEL E1 LINE INTERFACE UNIT
REV. 1.0.8
22
TTIP
O
Transmitter TIP Output:
Positive bipolar data output to the line.
23
TxLEV
I
Transmit Level:
Tie this pin high for 120
twisted pair cable operation and tie it low for 75 coaxial
cable operation (internal pull-down). This pin is only active for 5.0V operation.
24
AVDD
-
Analog Positive Supply
5.0 V + 5% or 3.3 V+ 5%
25
AGND
-
Analog Supply Ground
26
MuteRx
I
Mute Receive Output:
With this pin tied high, a loss of receive input signal (RLOS=0) will cause ClkLOS to
go low and generate the following.
Dual-rail mode operation:
With DIGI = 0, RClk = 1, RPOS and RNEG/RData = 0
fWith DIGI = 1, RClk =0, RPOS and RNEG/RData = 1
Single-rail mode:
RClk = 1 and RData=0
(internal pull-down)
27
RRing
I
Receive Bipolar Negative Input:
Bipolar line signal input to the receiver.
28
RTIP
I
Receiver Bipolar Positive Input:
Bipolar line signal input to the receiver.
PIN #SYMBOL
TYPE
DESCRIPTION
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