XRT5997 Datasheet, PDF (11/37 Pages) Exar Corporation – Seven-Channel E1 Line Interface Unit

XRT5997
PIN DESCRIPTION (CONT'D)
Pin#
Symbol
Type
53
RTIP4
I
54
DGND
55
TTIP4
O
56
TVDD4
57
TRing4
O
58
TGND4
59
TRing5
O
60
TVDD5
61
TTIP5
O
62
TGND5
63
RTIP5
I
64
RRing5
I
65
AVDD
66
AGND
67
AVDD
68
RRing7
I
Description
Receiver 4 Positive Bipolar Input.
The Receive Section of Channel 4 uses this input pin, along with RRing4 to
receive the bipolar line signal from the “Remote E1 Terminal”.
Digital Ground. Digital Circuitry.
Transmitter 4 Positive Bipolar Output.
Channel 4 within the XRT5997 device will use this pin, along with TRing4, to
transmit a bipolar line signal, via a 1:2 step-up transformer.
Positive Supply (+3.3V ± 5%), Transmitters 4.
Transmitter 4 Negative Bipolar Output.
Channel 4 within the XRT5997 device will use this pin, along with TTIP4, to
transmit a bipolar line signal, via a 1:2 step-up transformer.
Digital Ground. Transmitters 4.
Transmitter 5 Negative Bipolar Output.
Channel 5 within the XRT5997 device will use this pin, along with TTIP5, to
transmit a bipolar line signal, via a 1:2 step-up transformer.
Positive Supply (+3.3V ± 5%), Transmitters 5.
Transmitter 5 Positive Bipolar Output.
Channel 5 within the XRT5997 device will use this pin, along with TRing5, to
transmit a bipolar line signal, via a 1:2 step-up transformer.
Digital Ground. Transmitters 5.
Receiver 5 Positive Bipolar Input.
The Receive Section of Channel 5 uses this input pin, along with RRing5 to
receive the bipolar line signal from the “Remote E1 Terminal”.
Receiver 5 Negative Bipolar Input.
The Receive Section of Channel 5 uses this input pin, along with RTIP5 to
receive the bipolar line signal from the “Remote E1 Terminal”.
Positive Supply (+3.3V ± 5%). Analog Circuitry.
Analog Ground.
Positive Supply (+3.3V ± 5%). Receiver 4, 6, 7.
Receiver 7 Negative Bipolar Input.
The Receive Section of Channel 7 uses this input pin, along with RTIP7 to
receive the bipolar line signal from the “Remote E1 Terminal”.
Rev. 1.0.0
11