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參數(shù)資料
| 型號(hào)： | XRT73R12IB-L |
| 廠商： | Exar Corporation |
| 文件頁(yè)數(shù)： | 3/89頁(yè) |
| 文件大小： | 0K |
| 描述： | IC LIU E3/DS3/STS-1 12CH 420TBGA |
| 標(biāo)準(zhǔn)包裝： | 40 |
| 類型： | 線路接口裝置（LIU） |
| 驅(qū)動(dòng)器/接收器數(shù)： | 12/12 |
| 規(guī)程： | DS3，E3，STS-1 |
| 電源電壓： | 3.135 V ~ 3.465 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 420-LBGA 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 420-TBGA（35x35） |
| 包裝： | 托盤 |
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XRT73R12
8
REV. 1.0.3
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
RECEIVE LINE SIDE PINS
PIN #
SIGNAL NAME
TYPE
DESCRIPTION
B22
AE22
B18
AE18
A14
AF14
D13
AC13
B9
AE9
B5
AE5
RTip0
RTip1
RTip2
RTip3
RTip4
RTip5
RTip6
RTip7
RTip8
RTip9
RTip10
RTip11
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 XRT73R12.
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.
C22
AD22
C18
AD18
B14
AE14
C13
AD13
C9
AD9
C5
AD5
RRing0
RRing1
RRing2
RRing3
RRing4
RRing5
RRing6
RRing7
RRing8
RRing9
RRing10
RRing11
I
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 XRT73R12.
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.
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