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XRT5997 Datasheet, PDF (8/37 Pages) Exar Corporation – Seven-Channel E1 Line Interface Unit | |||
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XRT5997
PIN DESCRIPTION (CONT'D)
Pin#
Symbol
Type
34
RxNEG2
O
35
RxPOS2
O
36
LOS2
O
37
DVDD
-
38
DVDD
-
39
DGND
-
40
LOS5
O
41
RxPOS5
O
42
RxNEG5
O
43
TxClk5
I
Description
Receiver 2 Negative Data Out:
This output pin will pulse âhighâ whenever Channel 2, within the XRT5997
device has received a âNegative Polarityâ pulse, in the incoming line signal,
at RTIP2/RRing2 inputs.
Receiver 2 Positive Data Out:
This output pin will pulse âhighâ whenever Channel 2, within the XRT5997
device has received a âPositive Polarityâ pulse, in the incoming line signal, at
RTIP2/RRing2 inputs.
Receiver 2 Loss of Signal:
This output pin toggles âhighâ if Channel 2, within the XRT5997 device has
detected a âLoss of Signalâ condition in the incoming line signal.
Positive Supply (+3.3V ± 5%). Digital Circuitry.
Positive Supply (+3.3V ± 5%). Digital Circuitry.
Digital Ground: Digital Circuitry.
Receiver 5 Loss of Signal:
This output pin toggles âhighâ if Channel 5, within the XRT5997 device has
detected a âLoss of Signalâ condition in the incoming line signal.
Note: 1Internally pull-up with 50K resistor
Receiver 5 Positive Data Out:
This output pin will pulse âhighâ whenever Channel 5, within the XRT5997
device has received a âPositive Polarityâ pulse, in the incoming line signal, at
RTIP5/RRing5 inputs.
Receiver 5 Negative Data Out:
This output pin will pulse âhighâ whenever Channel 5, within the XRT5997
device has received a âNegative Polarityâ pulse, in the incoming line signal,
at RTIP5/RRing5 inputs.
Transmitter Clock Input â Channel 5:
If the user operates Channel 5 (within the XRT5997 device) in the âclockedâ
mode, then the âTransmit Sectionâ of the Channel 5 will use the falling edge of
this signal to sample the data at the TxPOS5 and TxNEG5 input pins.
NOTE: If the user operates the Channel 5 in the âclocklessâ mode, then the
Terminal Equipment should not apply a clock signal to this input pin.
Note: 1 Internally pull-up with 50K resistor.
Rev. 1.0.0
8
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