參數(shù)資料
型號(hào): AM7968-175JC
廠商: ADVANCED MICRO DEVICES INC
元件分類: 通用總線功能
英文描述: TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface)
中文描述: LINE DRIVER, PQCC28
封裝: PLASTIC, LCC-28
文件頁數(shù): 77/127頁
文件大?。?/td> 730K
代理商: AM7968-175JC
AMD
73
TAXIchip Integrated Circuits Technical Manual
8. When terminating serial lines to or from the TAXls ensure that the Vcc rail or ground
tap is not at a noisy location. Resistors can couple noise from a power supply rail into
the Serial lines. Vcc to Ground decoupling adjacent to the resistors is recommended
when using pullup/pulldown terminating resistor setups as shown in Figure 6-4.
When using only a pulldown, do not use decoupling as this could add more Vcc noise
into the serial signals.
Figure 6-4
Dec oupling T erminations
12330E-21
R1
TAXI
TX
RE
RE
+5 V
TAXI
RX
R2
R1
+
+
+5 V
R2
No Decoupling
Capacitor Required
Decoupling
Capacitor
GND
6.2 Layout using Fiber Optic Data Links
Because of their small signals levels, fiber optic data links require some care in layout.
Fiber optic data Link receivers consist of a photo sensitive diode and an amplifier. The
photo-diode converts light pulses into currents of around a few hundred nano-amps.
This signal current is then amplified and translated into an ECL signal.
TAXI Receivers and most digital chips switch hundreds of milliamps. If switching noise
from the digital section of the board gets coupled into the optical data link, the signal
from the light pulse data can be corrupted. To prevent the coupling of the optical data
link output with other digital signals, the user must ensure that small signal and digital
switching currents do not flow in the same path. This is done by separating both the
optical V
CC
plane and the optical ground plane from the V
CC
and Ground planes used by
other digital circuitry. See Figure 6-5.
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AM7969-175JC TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM7968-175JC-G 制造商:Rochester Electronics LLC 功能描述:- Bulk
AM7968-175LKC 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface)
AM7968-175LMC 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface)
AM7968-175PC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Transmitter
AM7968-175PCB 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Transmitter