XRT71D00 Просмотр технического описания (PDF) - Exar Corporation

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XRT71D00

E3/DS3/STS-1 JITTER ATTENUATOR

Exar Corporation 

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PIN DESCRIPTION

PIN #

8

NAME

STS-1

9

NC

XRT71D00

E3/DS3/STS-1 JITTER ATTENUATOR

REV. 1.2.0

TYPE

DESCRIPTION

I SONET STS-1 Mode Select:

This pin along with the E3/DS3* select pin (pin 29) configures the XRT71D00 either in

E3, DS3 or STS-1 mode.

A table relating the setting of these two input pins to the operating modee of the

XRT71D00 device is given below:

STS-1

E3/DS3*

XRT71D00 Operating Mode

0

0

DS3 (44.736 MHz)

0

1

E3 (34.368 MHz)

1

0

STS-1 (51.84 MHz)

1

1

E3 (34.368 MHz)

NOTES:

1. For “SONET De-Synchronization” Applications, the user should configure the

XRT71D00 device to operate in the “DS3” Mode.

2. This input pin is active only in the Hardware Mode

3. This pin contains an Internal 50 K Ohm pull-up resistor.

*** This pin is not connected internally

4

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