XRT72L13 datasheet(33/370 Pages) EXAR

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XRT72L13

M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC

PRELIMINARY

REV. P1.0.6

114

TxDS1Data_17

Transmit DS1/E1 Data Input - Channel 17:

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_17 signal.

115

TxDS1Clk_17

Transmit DS1/E1 Clock Input - Channel 17:

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_17" input pin.

116

TxDS1Data_16

Transmit DS1/E1 Data Input - Channel 16:

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_16 signal.

117

TxDS1Clk_16

Transmit DS1/E1 Clock Input - Channel 16:

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_1" input pin.

118

VDD

****

Power Supply Pin

119

TxDS1Data_15

Transmit DS1 Data Input - Channel 15:

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

This input pin is sampled upon the "falling edge" of the TxDS1Clk_15

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 # 4 is bypassed.

120

TxDS1Clk_15

Transmit DS1 Clock Input - Channel 15:

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_15" 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 # 4 is bypassed.

121

TxDS1Data_14

Transmit DS1/E1 Data Input - Channel 14:

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_14 signal.

122

TxDS1Clk_14

Transmit DS1/E1 Clock Input - Channel 14:

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_14" input pin.

123

TxDS1Data_13

Transmit DS1/E1 Data Input - Channel 13:

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_13 signal.

PIN DESCRIPTIONS

PIN #NAME

TYPE

DESCRIPTION

XRT72L13 Datasheet(PDF) 33 Page - Exar Corporation

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