XRT75L04 Datasheet, PDF (16/57 Pages) Exar Corporation – FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER

XRT75L04
FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
REV. 1.0.4
JITTER ATTENUATOR INTERFACE
155
JATx/Rx
I
Jitter Attenuator Path Select
In Hardware Mode, tie this pin “High” to select the Jitter Attenuator in the Trans-
mit Path . Connect this pin “Low” to select the Jitter Attenuator in the Receive
Path. This applies to all4 channels.
NOTE: This pin is internally pulled down.
153
JA0
I
Jitter Attenuator Select 0:
In Hardware Mode, this pin along with pin 154 configures the Jitter Attenuator
as shown in the above table for JA1 pin 154.
NOTE: This pin is internally pulled down.
ANALOG POWER AND GROUND
PIN #
SIGNAL NAME
TYPE
DESCRIPTION
43
TxAVDD_0
**** Transmitter Analog 3.3 V ± 5% VDD - Channel 0
31
TxAVDD_1
**** Transmitter Analog 3.3 V ± 5% VDD - Channel 1
2
TxAVDD_2
**** Transmitter Analog 3.3 V ± 5% VDD - Channel 2
14
TxAVDD_3
**** Transmitter Analog 3.3 V ± 5% VDD - Channel 3
35
TxAGND_0
**** Transmitter Analog GND - Channel 0
23
TxAGND_1
**** Transmitter Analog GND - Channel 1
10
TxAGND_2
**** Transmitter Analog GND - Channel 2
22
TxAGND_3
**** Transmitter Analog GND - Channel 3
96
RxAVDD_0
**** Receiver Analog 3.3 V ± 5% VDD - Channel 0
105
RxAVDD_1
**** Receiver Analog 3.3 V ± 5% VDD - Channel 1
125
RxAVDD_2
**** Receiver Analog 3.3 V ± 5% VDD - Channel 2
116
RxAVDD_3
**** Receiver Analog 3.3 V ± 5% VDD - Channel 3
99
RxAGND_0
**** Receiver Analog GND - Channel_0
108
RxAGND_1
**** Receive Analog GND - Channel 1
122
RxAGND_2
**** Receive Analog GND - Channel 2
113
RxAGND_3
**** Receive Analog GND - Channel 3
58
JaAVDD_0
**** Analog 3.3 V ± 5% VDD - Channel 0
53
JaAVDD_1
**** Analog 3.3 V ± 5% VDD - Channel 1
163
JaAVDD_2
**** Analog 3.3 V ± 5% VDD - Channel 2
168
JaAVDD_3
**** Analog 3.3 V ± 5% VDD - Channel 3
56
JaAGND_0
**** Analog GND - Channel 0
55
JaAGND_1
**** Analog GND - Channel 1
165
JaAGND_2
**** Analog GND - Channel 2
14