参数资料
型号: XRT73LC04AIV-F
厂商: Exar Corporation
文件页数: 63/64页
文件大小: 0K
描述: IC LIU E3/DS3/STS-1 4CH 144LQFP
标准包装: 60
类型: 线路接口装置(LIU)
驱动器/接收器数: 4/4
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: 144-LQFP
供应商设备封装: 144-LQFP(20x20)
包装: 托盘
XRT73LC04A
4
4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
REV. 1.0.2
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 XRT73LC04A uses this pin along with TRing_(n) to transmit a bipo-
lar 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 XRT73LC04A 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 XRT73LC04A uses this signal to sample the
TPData_(n) and TNData_(n) input pins. By default, the XRT73LC04A is
configured to sample these two pins on the falling edge of this signal.
NOTE: If the XRT73LC04A 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 XRT73LC04A 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 XRT73LC04A is operating in the HOST Mode, then the
XRT73LC04A 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 XRT73LC04A 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 XRT73LC04A is operating in the HOST Mode, then the
XRT73LC04A can be configured to sample the TNData_(n) pin on either
the rising or falling edge of TxClk_(n).
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