參數(shù)資料
型號： XR-T5794
廠商： Exar Corporation
英文描述： Quad E-1 Line Interface Unit
中文描述： 四的E - 1線路接口單元
文件頁數(shù)： 6/20頁
文件大?。?/td> 201K
代理商： XR-T5794
XR-T5794
6
Rev. 2.01
PIN DESCRIPTION (CONT’D)
PLCC
Pin #
43
SQFP
Pin #
38
Symbol
LPMOD1
Type
I
Description
Loop Mode 1.
Iif driven high the loopback mode of channel 1 will be set to re-
mote loop. Otherwise the loopback mode will remain at local loop. The actual
loopback will be activated when the LOOPEN1 is asserted.
44
41, 42
RV
SS
RXNEG1
V
SS
O
Receive V
SS
.
-5V (
Receiver 1 Negative Data Out.
Negative data output in NRZ or RZ format for
receiver 1.
5%).
45
43
46
44
RXPOS1
O
Receiver 1 Positive Data Out.
Positive data output in NRZ or RZ format for
receiver 1.
Receiver 2 Negative Data Out
.
Negative data output in NRZ or RZ format for
receiver 2.
47
45
RXNEG2
O
48
46
RXPOS2
O
Receiver 2 Positive Data Out.
Positive data output in NRZ or RZ format for
receiver 2.
49
47
V
SS
E1/T1-
V
SS
I
Digital V
SS.
-5V (
E1/T1- Selection.
Apply logic one to select the receive data threshold appropri-
ate for E1 operation. Connect to ground to select the T1 data threshold.
5%).
50
48
51
49
LOOPEN1
I
Loop Enable 1.
If driven high the specified loopback mode will be enabled for
channel 1. Otherwise normal operation will continue.
52
50
LOOPEN2
I
Loop Enable 2.
If driven high the specified loopback mode will be enabled for
channel 2. Otherwise normal operation will continue.
53
51
TXNEG1
I
Transmitter 1 Negative Data In.
Negative data input in NRZ or RZ format for
transmitter 1.
54
52
TXPOS1
I
Transmitter 1 Positive Data In.
Positive data input in NRZ or RZ format for
transmitter 1.
55
53
TXCLK1
I
Transmitter 1 Clock Input.
Apply logic one when RZ signals are supplied to
data inputs.
Transmitter 2 Negative Data In.
Negative data input in NRZ or RZ format for
transmitter 2.
56
54
TXNEG2
I
57
55
TXPOS2
I
Transmitter 2 Positive Data In.
Positive data input in NRZ or RZ format for
transmitter 2.
58
56
TXCLK2
I
Transmitter 2 Clock Input.
Apply logic one when RZ signals are supplied to
data inputs.
59
57, 58,
59
AV
SS
V
SS
Analog V
SS.
60
60
LOSLVS
I
Loss of Signal Voltage Select.
Apply logic one to select LOS voltage level
appropriate for 120
balanced receiver operation. Connect to ground to
choose LOS voltage for 75
unbalanced operation.
Transmitter 2 Output Enable.
If asserted the transmitter 2 output drivers are
enabled. High-Z otherwise.
61
63
TXEN2
I
62
64
TXEN1
I
Transmitter 1 Output Enable.
If asserted the transmitter 1 output drivers are
enabled. High-Z otherwise.
Transmitter 1 Output.
Transmitter 1 bipolar output connected to coupling
capacitor or pulse transformer through a resistor.
63
65
TXOUT1
O
64
66
TV
DD
TV
SS
V
DD
V
SS
Transmit V
DD.
+5V (
Transmit V
SS.
-5V (
5%).
65
67
5%).
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參數(shù)描述
XRT5794ES 制造商:EXAR 制造商全稱:EXAR 功能描述:Evaluation System
XRT5794ES-PLCC 功能描述:外圍驅(qū)動器與原件 - PCI 4 CH E1 AFE RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT5794ES-TQFP 功能描述:外圍驅(qū)動器與原件 - PCI 4 CH E1 AFE RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XR-T5794IJ 制造商:EXAR 制造商全稱:EXAR 功能描述:Quad E-1 Line Interface Unit
XRT5794IJ-F 功能描述:外圍驅(qū)動器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
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