XRT71D04 Datasheet, PDF (8/22 Pages) Exar Corporation – 4 CHANNEL E3/DS3/STS-1 JITTER ATTENUATOR, STS-1 TO DS3 DESYNCHRONIZER

XRT71D04
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4 CHANNEL E3/DS3/STS-1 JITTER ATTENUATOR, STS-1 TO DS3 DESYNCHRONIZER
REV. 1.1.1
PIN DESCRIPTION
PIN #
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
NAME
SDO
DS3/E3_2
VDD
NC
RCLKES
NC
RRNEG_1
RRPOS_1
RRCLK_1
GND
NC
AVDD
AGND
FL_1
STS1_1
DS3/E3_3
DJA_3
TYPE
DESCRIPTION
O Serial Data Output:
This pin will serially output the contents of the specified Command Register, dur-
ing “Read” Operations. The data, on this pin, will be updated on the falling edge of
the SCLK input signal. This pin will be tri-stated upon completion of data transfer.
I DS3/E3 Select Input - channel 2:
See description pin 10.
Internal 50 K Ohm pull-down resistor.
**** Digital Power Supply = 5V±5% or 3.3V±5%
I No Connection
I Received Clock Edge Select Input:
Hardware Mode
1. When RCLKES = “0”, then RPOS and RNEG are updated on the falling edge
of RCLK
2. When RCLKES = “1”, then RPOS and RNEG are updated on the rising edge
of RCLK
NOTE: This applies to all channels.
Host Mode
Connect this pin to GND when the 71D04 is configured in the Host Mode.
Internal 50 K Ohm pull-down resistor.
No Connection
O Received Recovered Negative Data (De-Jittered) Output - channel 1:
See description of pin 6
O Received Recovered Positive Data (De-Jittered) Output - channel 1:
See description of pin 5
O Received Recovered Output (De-jittered) Clock - channel 1:
See description of pin 4
**** Digital Ground
No Connection
**** Analog Power Supply = 5V±5% or 3.3V±5%
**** Analog Ground
O FIFO Limit - channel 1:
See description of pin 22
I SONET STS1 Mode Select - channel 1:
See description of pin 23
I DS3/E3 Select Input - channel 3:
See description pin 10.
Internal 50 K Ohm pull-down resistor.
I Disable Jitter Attenuator Input - Channel 3:
See description of pin 25
Internal 50 K Ohm pull-down resistor.
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