XRT72L13 datasheet(34/370 Pages) EXAR

34 / 370 page

XRT72L13

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M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC

REV. P1.0.6

PRELIMINARY

124

TxDS1Clk_13

Transmit DS1/E1 Clock Input - Channel 13:

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_13" input pin.

125

TxDS1Data_12

Transmit DS1/E1 Data Input - Channel 12:

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_12 signal.

126

TxDS1Clk_12

Transmit DS1/E1 Clock Input - Channel 12:

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_12" input pin.

127

TxDS1Data_11

Transmit DS1 Data Input - Channel 11:

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

This input pin is sampled upon the "falling edge" of the TxDS1Clk_11

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 # 3 is bypassed.

128

GND

****

Ground Pin

129

TxDS1Clk_11

Transmit DS1 Clock Input - Channel 11:

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_11" 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 # 3 is bypassed.

130

TxDS1Data_10

Transmit DS1/E1 Data Input - Channel 10:

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_10 signal.

131

TxDS1Clk_10

Transmit DS1/E1 Clock Input - Channel 10:

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_10" input pin.

132

TxDS1Data_9

Transmit DS1/E1 Data Input - Channel 9:

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_9 signal.

133

TxDS1Clk_9

Transmit DS1/E1 Clock Input - Channel 9:

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_9" input pin.

PIN DESCRIPTIONS

PIN #NAME

TYPE

DESCRIPTION

XRT72L13 Datasheet(PDF) 34 Page - Exar Corporation

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