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參數(shù)資料
| 型號： | XRT5997 |
| 廠商： | Exar Corporation |
| 英文描述： | Seven-Channel E1 Line Interface Unit(7通道 E1線接口單元) |
| 中文描述： | 七通道E1線路接口單元（7通道素E1線接口單元） |
| 文件頁數(shù)： | 7/37頁 |
| 文件大?。?/td> | 367K |
| 代理商： | XRT5997 |
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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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| XRT5997IV-F | 功能描述:外圍驅(qū)動器與原件 - PCI 3.3V or 5V 7-ch E1 temp -45 to 85C RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
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| XRT59L81IG-F | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 BITS Clock Generator RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
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