參數(shù)資料
型號： XRT82L38
廠商： Exar Corporation
英文描述： Octal E1/T1/J1 Line Transceiver with Clock Recovery and Jitter Attenuator(八 T1/E1/J1線收發(fā)器（帶時鐘恢復和振蕩衰減器）)
中文描述： 八進制E1/T1/J1線收發(fā)器時鐘恢復和抖動衰減器（八的T1/E1/J1線收發(fā)器（帶時鐘恢復和振蕩衰減器））
文件頁數(shù)： 14/54頁
文件大?。?/td> 356K
代理商： XRT82L38
XRT82L38
OCTAL E1/T1/J1 LINE TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
REV. P1.0.5
PRELIMINARY
12
99
TTIP_0
O
Transmitter 0 Tip Output:
Positive bipolar data output to the line.
100
TVDD_0
****
Transmitter 0 Analog Positive Supply(3.3V± 5%)
101
TRing_0
O
Transmitter 0 Ring Output:
Negative bipolar data output to the line.
102
TGND_0
****
Transmitter 0 Analog Ground
103
RRing_0
I
Receiver 0 Bipolar Negative Input
104
RTIP_0
I
Receiver 0 Bipolar Positive Input
105
ICT
I
In-Circuit Testing (Active "Low"):
When this pin is tied "Low", all output pins are forced to high impedance state
for in-circuit testing.
N
OTE
:
Internally pulled
“
High
”
with a 50K
resistor.
106
RxPOS_0
RData_0
O
O
Receiver 0 Positive Data Output:
In dual-rail mode, this signal is the receive p-rail output data.
Receiver 0 NRZ Data Output:
In single-rail mode, this signal is the receive output data.
107
RxNEG_0
LCV_0
O
O
Receiver 0 Negative Data Output:
In dual-rail mode, this signal is the receive n-rail output data.
Line Code Violation Output:
In single-rail mode, this signal output goes "High" for one receiveclock cycle
to indicate a code violation is detected in the received data. If AMI coding is
selected, every bipolar violation received will cause this pin to go "High".
108
RxClk_0
O
Receiver 0 Clock Output
109
RxLOS_0
O
Receiver 0 Loss of Signal:
This signal is asserted "High" to indicate loss of signal at the receive input.
110
TxClk_0
I
Transmitter 0 Clock Input:
E1 rate at 2.048MHz ± 50ppm and T1 rate at 1.544MHz ± 32ppm( (see pin 38
description for transmitter shut down.)
N
OTE
:
Internally pulled
“
High
”
with a 50K
resistor.
111
TxPOS_0
TData_0
I
I
Transmitter 0 Positive Data Input:
In dual-rail mode, this signal is the p-rail input data for transmitter 0.
Transmitter 0 NRZ Data Input:
In single-rail mode, this signal is used as the NRZ input data for transmitter 0.
N
OTE
:
Internally pulled
“
High
”
with a 50K
resistor.
112
TxNEG_0
I
Transmitter 0 Negative Data Input:
In dual-rail mode, this signal is the n-rail data input for transmitter 0.
In single-rail mode, this pin can be left unconnected.
N
OTE
:
Internally pulled
“
High
”
with a 50K
resistor.
113
TxClk_3
I
Transmitter 3 Clock Input:
E1 rate at 2.048MHz ± 50ppm and T1 rate at 1.544MHz ± 32ppm( (see pin 38
description for transmitter shut down.)
N
OTE
:
Internally pulled
“
High
”
with a 50K
resistor.
PIN DESCRIPTION
P
IN
#
N
AME
T
YPE
D
ESCRIPTION
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