參數(shù)資料
型號: XRT82D20IW
廠商: Exar Corporation
文件頁數(shù): 24/27頁
文件大?。?/td> 0K
描述: IC LIU EI SGL 28SOJ
標準包裝: 27
類型: 線路接口裝置(LIU)
驅動器/接收器數(shù): 1/1
規(guī)程: E1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 28-BSOJ
供應商設備封裝: 28-SOJ
包裝: 管件
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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