XRT81L27 Datasheet, PDF (10/30 Pages) Exar Corporation – SEVEN CHANNEL E1 LINE INTERFACE UNIT WITH CLOCK RECOVERY

XRT81L27
SEVEN CHANNEL E1 LINE INTERFACE UNIT WITH CLOCK RECOVERY
REV. 1.1.0
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PIN DESCRIPTIONS
NOTE: I -H indicates an input pin with a 50kΩ pull-up Resistor, I-L indicates an input pin with a 50kΩ pull-down resistor.
PIN #
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
NAME
RPOS_3/
RDATA_3
AVDD
AGND
TClk_1
TPOS_1/
TDATA_1
TNEG_1/
CODE_1
TAOS_1
TClk_3
TPOS_3/
TDATA_3
TNEG_3/
CODE_3
TAOS_3
TAOS_2
TNEG_2/
CODE_2
TPOS_2/
TDATA_2
TClk_2
TAOS_0
TNEG_0/
CODE_0
TPOS_0/
TDATA_0
TClk_0
GND
VDD
RPOS_2/
RDATA_2
RNEG_2/
LCV_2
RClk_2
LOS_2
TYPE
O
AVdd
Gnd
I
I
I-L
I-L
I
I
I-L
I-L
I-L
I-L
I
I
I-L
I-L
I
I
Gnd
Vdd
O
O
O
O
DESCRIPTION
Receiver 3 Positive/NRZ Data Output: (see pin 35)
Analog Positive Supply(3.3V± 5%)
Analog Supply Ground
Transmitter 1 Clock Input: E1 rate at 2.048MHz ± 50ppm.
Transmitter 1 Positive/ NRZ Data Input: (see pin 38)
Transmitter 1 Negative Data Input: (see pin 39)
Transmit All Ones Channel_1: (see pin 40)
Transmitter 3 Clock Input: E1 rate at 2.048MHz ± 50ppm.
Transmitter 3 Positive/ NRZ Data Input: (see pin 38)
Transmitter 3 Negative Data Input: (see pin 39)
Transmit All Ones Channel_4: (see pin 40)
Transmit All Ones Channel_ 2: (see pin 40)
Transmitter 2 Negative Data Input: (see pin 39)
Transmitter 2 Positive/ NRZ Data Input: (see pin 38)
Transmitter 2 Clock Input: E1 rate at 2.048MHz ± 50ppm.
Transmit All Ones Channel_ 0: (see pin 40)
Transmitter 0 Negative Data Input: (see pin 39)
Transmitter 0 Positive/ NRZ Data Input: (see pin 38)
Transmitter 0 Clock Input: E1 rate at 2.048MHz ± 50ppm.
Digital Supply Ground
Digital Positive Supply(3.3V± 5%)
Receiver 2 Positive/NRZ Data Output: (see pin 35)
Receiver 2 Negative Data Output: (see pin 34)
Receiver 2 Clock Output:
Receiver 2 Loss of Signal: (see pin 2)
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