XRT72L13 Datasheet, PDF (35/370 Pages) Exar Corporation – M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC

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PRELIMINARY
PIN DESCRIPTIONS
PIN #
NAME
134
TxDS1Data_8
135
TxDS1Clk_8
136
TxDS1Data_7
137
VDD
138
TxDS1Clk_7
139
TxDS1Data_6
140
TxDS1Clk_6
141
TxDS1Data_5
142
TxDS1Clk_5
143
TxDS1Data_4
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 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.
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.
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.
Power Supply Pin
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.
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.
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.
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.
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.
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.
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