XRT72L13 View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'XRT72L13' PDF : 370 Pages View PDF
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PRELIMINARY
PIN DESCRIPTIONS
PIN #
NAME
114
TxDS1Data_17
115
TxDS1Clk_17
116
TxDS1Data_16
117
TxDS1Clk_16
118
VDD
119
TxDS1Data_15
120
TxDS1Clk_15
121
TxDS1Data_14
122
TxDS1Clk_14
123
TxDS1Data_13
XRT72L13
M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC
REV. P1.0.6
TYPE
I
I
I
I
****
I
I
I
I
I
DESCRIPTION
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.
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.
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.
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.
Power Supply Pin
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.
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.
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.
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.
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.
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