參數(shù)資料
型號(hào)： XRT5997IV-F
廠商： Exar Corporation
文件頁(yè)數(shù)： 35/37頁(yè)
文件大小： 0K
描述： IC LIU E1 7CH 3.3V 100TQFP
標(biāo)準(zhǔn)包裝： 90
類型： 線路接口裝置（LIU）
驅(qū)動(dòng)器/接收器數(shù)： 7/7
規(guī)程： E1
電源電壓： 3.14 V ~ 3.47 V
安裝類型： 表面貼裝
封裝/外殼： 100-LQFP
供應(yīng)商設(shè)備封裝： 100-TQFP（14x14）
包裝： 托盤
XRT5997
7
Rev. 1.0.0
PIN DESCRIPTION (CONT'D)
Pin#
Symbol
Type
Description
30
RxNEG3
O
Receiver 3 Negative Data Out:
This output pin will pulse “high” whenever Channel 3, within the XRT5997
device has received a “Negative Polarity” pulse, in the incoming line signal,
at RTIP3/RRing3 inputs.
31
TxPOS2
I
Transmitter - Positive Data Input – Channel 2:
The exact signal that should be applied to this input pin depends upon
whether the user intends to operate the “Transmit Section” (of Channel 2) in
the “Clocked” or “Clockless” Mode.
Clocked Mode:
The Terminal Equipment should apply bit-wide NRZ pulses on this input pin,
whenever the Terminal Equipment needs to transmit a “positive-polarity”
pulse onto the line via TTIP2 and TRing2 output pins). The XRT5997
device will sample this input pin upon the falling edge of the TClk2 signal.
Clockless Mode:
The Terminal Equipment should apply RZ pulses to this input pin, anytime
the Terminal Equipment needs to transmit a “positive-polarity” pulse onto the
line via TTIP2 and TRing2 output pins.
32
TxNEG2
I
Transmitter - Negative Data Input – Channel 2:
The exact signal that should be applied to this input pin depends upon
whether the user intends to operate the “Transmit Section” (of the Channel 2)
in the “Clocked” or “Clockless” Mode.
Clocked Mode:
The Terminal Equipment should apply bit-wide NRZ pulses on this input pin,
whenever the Terminal Equipment needs to transmit a “negative-polarity”
pulse onto the line via TTIP2 and TRing2 output pins. The XRT5997
device will sample this input pin upon the falling edge of the TClk2 signal.
Clockless Mode:
The Terminal Equipment should apply RZ pulses to this input pin, anytime the
Terminal Equipment needs to transmit a “negative-polarity” pulse onto the
line via TTIP2 and TRing2 output pins.
33
TxClk2
I
Transmitter Clock Input – Channel 2:
If the user operates Channel 2 (within the XRT5997 device) in the “clocked”
mode, then the “Transmit Section” of the Channel 2 will use the falling edge
of this signal to sample the data at the TxPOS2 and TxNEG2 input pins.
Note If the user operates the Channel 2 in the “clockless” mode, then the
Terminal Equipment should not apply a clock signal to this input pin.
Note: 1 Internally pull-up with 50K resistor.
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