XRT75R12DIB-F Exar Corporation, XRT75R12DIB-F Datasheet - Page 12
XRT75R12DIB-F
Manufacturer Part Number
XRT75R12DIB-F
Description
Peripheral Drivers & Components (PCIs) 12 Channel 3.3V-5V temp -45 to 85C
Manufacturer
Exar Corporation
Datasheet
1.XRT75R12DIB-F.pdf
(133 pages)
Specifications of XRT75R12DIB-F
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Operating Supply Voltage
3.3 V to 5 V
Package / Case
TBGA-420
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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RECEIVE LINE SIDE PINS
XRT75R12D
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
AE22
AE18
AC13
AD22
AD18
AE14
AD13
P
AF14
AE9
AE5
AD9
AD5
B22
B18
A14
D13
C22
C18
B14
C13
B9
B5
C9
C5
IN
#
S
IGNAL
RRing10
RRing11
RRing0
RRing1
RRing2
RRing3
RRing4
RRing5
RRing6
RRing7
RRing8
RRing9
RTip10
RTip11
RTip0
RTip1
RTip2
RTip3
RTip4
RTip5
RTip6
RTip7
RTip8
RTip9
N
AME
T
YPE
I
I
Receive TIP Input
These input pins along with the corresponding RRing_n input pin function as the
Receive DS3/E3/STS-1 Line input signal for a given channel of the
XRT75R12D.
Cconnect this signal and the corresponding RRING_n input signal to a 1:1
transformer.
Whenever the RTIP/RRING input pins are receiving a positive-polarity pulse
within the incoming DS3, E3 or STS-1 line signal, this input pin will be pulsed to
a higher voltage than its corresponding RRING_n input pin.
Conversely, whenever the RTIP/RRING input pins are receiving a negative-
polarity pulse within the incoming DS3, E3 or STS-1 line signal, this input pin
will be pulsed to a lower voltage than its corresponding RRING_n input pin.
Receive Ring Input
These input pins along with the corresponding RTIP_n input pin function as the
Receive DS3/E3/STS-1 Line input signal for a given channel of the
XRT75R12D.
Connect this signal and the corresponding RTIP_n input signal to a 1:1 trans-
former. (See Figure 6)
Whenever the RTIP/RRING input pins are receiving a positive-polarity pulse
within the incoming DS3, E3 or STS-1 line signal, then this input pin will be
pulsed to a lower voltage than its corresponding RTIP_n input pin.
Conversely, whenever the RTIP/RRING input pins are receiving a negative-
polarity pulse within the incoming DS3, E3 or STS-1 line signal, then this input
pin will be pulsed to a higher voltage than its corresponding RTIP_n input pin.
8
D
ESCRIPTION
REV. 1.0.3
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