XRT72L13 datasheet(35/370 Pages) EXAR

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XRT72L13

M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC

PRELIMINARY

REV. P1.0.6

134

TxDS1Data_8

Transmit DS1/E1 Data Input - Channel 8:

This input pin accepts either a DS1 or E1 signal from the Terminal

Equipment. This input pin is sampled upon the "falling edge" of the

“TxDS1Clk_8” signal.

135

TxDS1Clk_8

Transmit DS1/E1 Clock Input - Channel 8:

This input pin accepts either a DS1 (1.544MHz) or an E1 (2.048MHz)

clock signal from the Terminal Equipment. The falling edge of this sig-

nal is used to sample the data at the "TxDS1Data_8" input pin.

136

TxDS1Data_7

Transmit DS1 Data Input - Channel 7:

This input pin accepts a DS1 signal from the Terminal Equipment.

This input pin is sampled upon the "falling edge" of the TxDS1Clk_7

signal.

NOTES:

1. This input pin is inactive if the corresponding M12 MUX is

multiplexing 3 E1's into an ITU-T G.747 data stream.

2. This input pin accepts DS2 data if M12 MUX # 2 is bypassed.

137

VDD

****

Power Supply Pin

138

TxDS1Clk_7

Transmit DS1 Clock Input - Channel 7:

This input pin accepts a DS1 (1.544MHz) clock signal from the Termi-

nal Equipment. The falling edge of this signal is used to sample the

data at the "TxDS1Data_7" input pin.

NOTES:

1. This input pin is inactive if the corresponding M12 MUX is

multiplexing 3 E1's into an ITU-T G.747 data stream.

2. This input pin accepts a DS2 rate clock signal (6.312MHz) if

M12 MUX # 2 is bypassed.

139

TxDS1Data_6

Transmit DS1/E1 Data Input - Channel 6:

This input pin accepts either a DS1 or E1 signal from the Terminal

Equipment. This input pin is sampled upon the "falling edge" of the

TxDS1Clk_6 signal.

140

TxDS1Clk_6

Transmit DS1/E1 Clock Input - Channel 6:

This input pin accepts either a DS1 (1.544MHz) or an E1 (2.048MHz)

clock signal from the Terminal Equipment. The falling edge of this sig-

nal is used to sample the data at the "TxDS1Data_6" input pin.

141

TxDS1Data_5

Transmit DS1/E1 Data Input - Channel 5:

This input pin accepts either a DS1 or E1 signal from the Terminal

Equipment. This input pin is sampled upon the "falling edge" of the

TxDS1Clk_5 signal.

142

TxDS1Clk_5

Transmit DS1/E1 Clock Input - Channel 5:

This input pin accepts either a DS1 (1.544MHz) or an E1 (2.048MHz)

clock signal from the Terminal Equipment. The falling edge of this sig-

nal is used to sample the data at the "TxDS1Data_5" input pin.

143

TxDS1Data_4

Transmit DS1/E1 Data Input - Channel 4:

This input pin accepts either a DS1 or E1 signal from the Terminal

Equipment. This input pin is sampled upon the "falling edge" of the

TxDS1Clk_4 signal.

PIN DESCRIPTIONS

PIN #NAME

TYPE

DESCRIPTION

XRT72L13 Datasheet(PDF) 35 Page - Exar Corporation

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