XRT82L24A Datasheet, PDF (6/39 Pages) Exar Corporation – QUAD E1 LINE TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR

XRT82L24A
QUAD E1 LINE TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
REV. 1.1.2
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PIN DESCRIPTION
PIN DESCRIPTIONS
PIN #
NAME
RECEIVER SECTIONS
TYPE
DESCRIPTION
1 RxCLK_0/RZData_0 O Receiver_n Clock Output
25 RxCLK_1/RZData_1
Rzdata Output:
51 RxCLK_2/RZData_2
In Data Slicer Mode, (register 0, bit 7 = 1) or in Hardware Mode when MClk is
75 RxCLK_3/RZData_3
absent, this signal is OR-ed RZdata after the slicers.
2
RxLOS_0
O Receiver_n Loss of Signal. This signal is asserted "High" to indicate loss of
24
RxLOS_1
signal at the receive input.
52
RxLOS_2
74
RxLOS_3
100 RxPOS_0/RData_0
26 RxPOS_1/RData_1
50 RxPOS_2/RData_2
76 RxPOS_3/RData_3
O Receiver 1 Positive Data Output:
In dual-rail mode, this signal is the receive P-rail output data.
Receiver 1 NRZ Data Output:
In single-rail mode, this signal is the receive output data.
99
RxNEG_0/LCV_0
O Receiver_n Negative Data Output:
27
RxNEG_1/LCV_1
In dual-rail mode, n-rail data are sent to the framer.
49
RxNEG_2/LCV_2
Line Code Violation Output - Channel_n:
77
RxNEG_3/LCV_3
In single-rail mode, this signal output "High" for one receive clock cycle to indi-
cate 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".
95
RRing_0
31
RRing_1
45
RRing_2
81
RRing_3
I Receiver_n Differential Negative Input.
94
RTIP_0
32
RTIP_1
44
RTIP_2
82
RTIP_3
I Receiver_n Differential Positive Input.
67
RXMUTE
I Hardware Mode, Receive Muting:
Connect this pin "High" to mute RxPOS/RxNEG output to a low state upon
receive LOS condition to prevent data chattering. Connect Low to disable mut-
ing function.
TRANSMITTER SECTIONS
3
TxNEG_0
23
TxNEG_1
53
TxNEG_2
73
TxNEG_3
I Transmitter_n Negative NRZ Data Input. In dual-rail mode, this signal is the n-
rail input data for transmitter 0. In single-rail mode, this pin can be left uncon-
nected.
4
TxPOS_0/TData_0
22 TxPOS_1/TData_1
54 TxPOS_2/TData_2
72 TxPOS_3/TData_3
I Transmitter_n Positive Data Input. In dual-rail mode, this signal is the p-rail
input data for transmitter 0.
Transmitter 0 Data Input. In single-rail mode, this pin is used as the NRZ input
data for transmitter 0.
4