XRT72L13 datasheet(16/370 Pages) EXAR

16 / 370 page

XRT72L13

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M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC

REV. P1.0.6

PRELIMINARY

RxDS1Clk_22

Receive DS1/E1 Clock Output - Channel 22:

This pin outputs either a DS1 (1.544MHz) or an E1 (2.048MHz) clock

signal to the Terminal Equipment. The XRT72L13 will update the data

on the "RxDS1Data_22" line, upon the rising edge of this signal.

VDD

****

Power Supply Pin

RxDS1Data_21

Receive DS1/E1 Data Output - Channel 21

This pin outputs either a DS1 or E1 signal from the M12 multiplexer.

Each bit, within the DS1 or E1 data stream is output upon the rising

edge of RxDS1Clk_21.

RxDS1Clk_21

Receive DS1/E1 Clock Output - Channel 21:

This pin outputs either a DS1 (1.544MHz) or an E1 (2.048MHz) clock

signal to the Terminal Equipment. The XRT72L13 will update the data

on the "RxDS1Data_21" line, upon the rising edge of this signal.

RxDS1Data_20

Receive DS1/E1 Data Output - Channel 20:

This pin outputs either a DS1 or E1 signal from the M12 multiplexer.

Each bit, within the DS1 or E1 data stream is output upon the rising

edge of RxDS1Clk_20.

RxDS1Clk_20

Receive DS1/E1 Clock Output - Channel 20:

This pin outputs either a DS1 (1.544MHz) or an E1 (2.048MHz) clock

signal to the Terminal Equipment. The XRT72L13 will update the data

on the "RxDS1Data_20" line, upon the rising edge of this signal.

RxDS1Data_19

Receive DS1 Data Output - Channel 19:

This pin outputs a DS1 signal from the M12 multiplexer. Each bit,

within the DS1 data stream is output upon the rising edge of

RxDS1Clk_19.

NOTES:

1. This output pin is inactive if the corresponding M12 DEMUX is

de-multiplexing an ITU-T G.747 data stream.

2. This pin will output the contents of DS2 channel # 5, if M12

MUX # 5 is bypassed.

RxDS1Clk_19

Receive DS1 Clock Output - Channel 19:

This pin outputs a DS1 (1.544MHz) clock signal to the Terminal

Equipment. The XRT72L13 will update the data on the

"RxDS1Data_19" line, upon the rising edge of this signal.

This output pin is inactive if the corresponding M12 DEMUX is de-

multiplexing an ITU-T G.747 data stream.

NOTES:

1. This output pin is inactive if the corresponding M12 DEMUX is

de-multiplexing an ITU-T G.747 data stream.

2. This pin will output a DS2 rate clock signal (6.312MHz) if M12

# 5 is bypassed.

RxDS1Data_18

Receive DS1/E1 Data Output - Channel 18

This pin outputs either a DS1 or E1 signal from the M12 multiplexer.

Each bit, within the DS1 or E1 data stream is output upon the rising

edge of RxDS1Clk_18.

PIN DESCRIPTIONS

PIN #NAME

TYPE

DESCRIPTION

XRT72L13 Datasheet(PDF) 16 Page - Exar Corporation

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