PIN DESCRIPTIONS (BY FUNCTION) TRANSM" />
參數(shù)資料
型號(hào)： XRT73L04BIV-F
廠商： Exar Corporation
文件頁(yè)數(shù)： 63/64頁(yè)
文件大?。?/td> 0K
描述： IC LIU E3/DS3/STS-1 4CH 144LQFP
標(biāo)準(zhǔn)包裝： 60
類(lèi)型： 線路接口裝置（LIU）
驅(qū)動(dòng)器/接收器數(shù)： 4/4
規(guī)程： DS3，E3，STS-1
電源電壓： 3.135 V ~ 3.465 V
安裝類(lèi)型： 表面貼裝
封裝/外殼： 144-LQFP
供應(yīng)商設(shè)備封裝： 144-LQFP（20x20）
包裝： 托盤(pán)
XRT73L04B
4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
REV. 1.0.1
4
PIN DESCRIPTIONS (BY FUNCTION)
TRANSMIT INTERFACE
PIN #NAME
TYPE
DESCRIPTION
34
25
3
12
TTIP_0
TTIP_1
TTIP_2
TTIP_3
O
Transmit TTIP Output - Channel (n):
The XRT73L04B uses this pin along with TRing_(n) to transmit a bipolar
line signal via a 1:1 transformer.
32
23
5
14
TRing_0
TRing_1
TRing_2
TRing_3
O
Transmit Ring Output - Channel (n):
The XRT73L04B uses this pin along with TTIP_(n) to transmit a bipolar
line signal via a 1:1 transformer.
42
30
139
7
TxClk_0
TxClk_1
TxClk_2
TxClk_3
I
Transmit Clock Input for TPData and TNData - Channel (n):
This input pin must be driven at 34.368 MHz (for E3 applications),
44.736 MHz (for DS3 applications), or 51.84 MHz (for SONET STS-1
applications). The XRT73L04B uses this signal to sample the
TPData_(n) and TNData_(n) input pins. By default, the XRT73L04B is
configured to sample these two pins on the falling edge of this signal.
NOTE: If the XRT73L04B is operating in the HOST Mode, then the
device can be configured to sample the TPData_(n) and TNData_(n)
input pins on either the rising or falling edge of TxClk_(n).
41
29
140
8
TPData_0
TPData_1
TPData_2
TPData_3
I
Transmit Positive Data Input - Channel (n):
The XRT73L04B samples this pin on the falling edge of TxClk_(n). If the
device samples a "1", then it generates and transmits a positive polarity
pulse to the line.
The data should be applied to this input pin if the Transmit Section is
configured to accept Single-Rail data from the Terminal Equipment.
NOTE: If the XRT73L04B is operating in the HOST Mode, then the
XRT73L04B can be configured to sample the TPData_(n) pin on either
the rising or falling edge of TxClk_(n).
40
28
141
9
TNData_0
TNData_1
TNData_2
TNData_3
I
Transmit Negative Data Input - Channel (n):
The XRT73L04B samples this pin on the falling edge of TxClk_(n). If the
device samples a "1", then it generates and transmits a negative polarity
pulse to the line.
In Single-Rail Mode, this pin must be tied to GND to enable the HDB3/
B3ZS Encoder and Decoder, (internally pulled-down).
In Dual-Rail Mode this input is the N-Rail Data input.
NOTE: If the XRT73L04B is operating in the HOST Mode, then the
XRT73L04B can be configured to sample the TNData_(n) pin on either
the rising or falling edge of TxClk_(n).
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