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): 8/54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
6
42
TxPOS_5
TData_5
I
I
Transmitter 5 Positive Data Input:
In dual-rail mode, this signal is the p-rail input data for transmitter 5.
Transmitter 5 NRZ Data Input:
In single-rail mode, this signal is used as the NRZ input data for transmitter 5.
N
OTE
:
Internally pulled
High
with a 50K
resistor.
43
TxNEG_5
I
Transmitter 5 Negative Data Input:
In dual-rail mode, this signal is the n-rail data input for transmitter 5.
In single-rail mode, this pin can be left unconnected.
N
OTE
:
Internally pulled
High
with a 50K
resistor.
44
RxNEG_5
LCV_5
O
O
Receiver 5 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".
45
RxPOS_5
RData_5
O
O
Receiver 5 Positive Data Output:
In dual-rail mode, this signal is the receive p-rail output data.
Receiver 5 NRZ Data Output:
In single-rail mode, this signal is the receive output data.
46
RxClk_5
O
Receiver 5 Clock Output
47
GND
****
Analog Ground (RX)
48
RD_DS
ECA
I
I
Read Input(Data Strobe) in Host Mode:
With Intel bus timing, a "Low" pulse on RD selects a read operation when CS
pin is "Low". When configured in Motorola bus timing, a "Low" pulse on DS
indicates a read or write operation when CS pin is "Low".
Transmit Equalizer Control A:
In Hardware Mode, this pin together with ECB and ECC is used for controlling
transmit pulse shaping and also selects T1 or E1 Mode of operation.
Transmit Equalizer Control
N
OTE
:
All transmit channels in T1 share the same pulse shaping setting in
Hardware Mode.
PIN DESCRIPTION
P
IN
#
N
AME
T
YPE
D
ESCRIPTION
Cable Loss
Codes
0 - 133 ft.
B8ZS/AMI-DS1
133 - 266 ft.
B8ZS/AMI-DS1
266 - 399 ft.
B8ZS/AMI-DS1
399 - 533 ft.
B8ZS/AMI-DS1
533 - 655 ft.
B8ZS/AMI-DS1
-----------
HDB3/AMI-E1
ECC
0
0
0
0
1
1
ECB
0
0
1
1
0
1
ECA
0
1
0
1
0
1
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