XRT59L91 데이터 시트보기 (PDF) - Exar Corporation
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XRT59L91 Datasheet PDF : 28 Pages
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Preliminary
XRT59L91
PIN DESCRIPTION
Pin#
6
7
8
9
10
11
12
13
14
15
16
Symbol
RxPOS
RxNEG
RxLOS
RTIP
RRing
RVSS
RVDD
TTIP
TVDD
TRing
TVSS
Type
O
O
O
I
I
-
-
O
-
O
-
Description
Receive Positive Pulse Output:
This output pin will pulse “high” whenever the XRT59L91 device has
received a “Positive Polarity” pulse, in the incoming line signal, at
RTIP/RRing inputs.
Receive Negative Pulse Output:
This output pin will pulse “high” whenever the XRT59L91 device has
received a “Negative Polarity” pulse, in the incoming line signal, at
RTIP/RRing inputs.
Receive Loss of Signal Output Indicator:
This output pin toggles “high” if the XRT59L91 device has detected a
“Loss of Signal” condition in the incoming line signal.
Receive TIP Input:
This input pin, along with RRing is used to receive the bipolar line
signal from the “Remote E1 Terminal”.
Receive Ring Input:
This input pin, along with RTIP is used to receive the bipolar line
signal from the “Remote E1 Terminal”.
Receiver Ground Pin
Receiver Power Supply Pin: 3.3V + 5%
Transmit TIP Output:
The XRT59L91 device will use this pin, along with TRing, to transmit
a bipolar line signal, via a 1:2 step-up transformer.
Transmitter Power Supply Pin: 3.3V + 5%
Transmit Ring Output:
The XRT59L91 device will use this pin, along with TTIP, to transmit a
bipolar line signal, via a 1:2 step-up transformer.
Transmitter Ground Pin
Rev. P2.00
5
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