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XRT71D04 Datasheet(PDF) 8 Page - Exar Corporation

Part No. XRT71D04
Description  4 CHANNEL E3/DS3/STS-1 JITTER ATTENUATOR, STS-1 TO DS3 DESYNCHRONIZER
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Maker  EXAR [Exar Corporation]
Homepage  http://www.exar.com
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XRT71D04 Datasheet(HTML) 8 Page - Exar Corporation

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XRT71D04
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4 CHANNEL E3/DS3/STS-1 JITTER ATTENUATOR, STS-1 TO DS3 DESYNCHRONIZER
REV. 1.1.1
7
49
SDO
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.
50
DS3/E3_2
I
DS3/E3 Select Input - channel 2:
See description pin 10.
Internal 50 K Ohm pull-down resistor.
51
VDD
****
Digital Power Supply = 5V±5% or 3.3V±5%
52
NC
I
No Connection
53
RCLKES
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.
54
NC
No Connection
55
RRNEG_1
O
Received Recovered Negative Data (De-Jittered) Output - channel 1:
See description of pin 6
56
RRPOS_1
O
Received Recovered Positive Data (De-Jittered) Output - channel 1:
See description of pin 5
57
RRCLK_1
O
Received Recovered Output (De-jittered) Clock - channel 1:
See description of pin 4
58
GND
****
Digital Ground
59
NC
No Connection
60
AVDD
****
Analog Power Supply = 5V±5% or 3.3V±5%
61
AGND
****
Analog Ground
62
FL_1
O
FIFO Limit - channel 1:
See description of pin 22
63
STS1_1
I
SONET STS1 Mode Select - channel 1:
See description of pin 23
64
DS3/E3_3
I
DS3/E3 Select Input - channel 3:
See description pin 10.
Internal 50 K Ohm pull-down resistor.
65
DJA_3
I
Disable Jitter Attenuator Input - Channel 3:
See description of pin 25
Internal 50 K Ohm pull-down resistor.
PIN DESCRIPTION
PIN #NAME
TYPE
DESCRIPTION


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