參數(shù)資料
型號(hào)： TVP3409-135
廠商： Texas Instruments, Inc.
英文描述： Advanced Video Interface PALETTE(雙PLL，視頻接口調(diào)色器真彩色CMOS)
中文描述： 先進(jìn)的視頻接口盒（雙鎖相環(huán)，視頻接口調(diào)色器真彩色的CMOS）
文件頁(yè)數(shù)： 46/57頁(yè)
文件大小： 312K
代理商： TVP3409-135
A–2
For the TVP3409, decouple V
CC
terminal to ground with a 0.1 F capacitor. For higher frequency pixel clocks
(>110 MHz) use a 0.01
μ
F capacitor in parallel with the 0.1
μ
F capacitor to shunt the higher frequency noise
to ground. Power supply noise should be less than 200 mV for a good design. About 10% of any noise below
1 MHz is coupled onto the DAC outputs. As illustrated in Figure A–3, the COMP terminal should be
decoupled with a 0.1
μ
F capacitor. For designs showing ghosting or smearing add a parallel COMP
capacitance of 2.2
μ
F.
Digital Signals
The digital inputs should not travel over the analog power plane when possible. The RAMDAC should be
located over the analog plane close to the digital-analog supply separation. The RAMDAC can also be
placed over the supply separation so the digital pixel inputs are over the digital supply plane. The digital
inputs, especially the P(15–0) high-speed inputs, should be isolated from the analog outputs. Placing the
digital inputs over the digital supply reduces coupling into the analog supply plane. High-speed signals (both
analog and digital) should not be routed under the RAMDAC.
Avoid high slew-rate edges as they can contribute to undershoot, overshoot, ringing, EMI, and noise feed
through. Edges can be slowed down using series termination (33 to 150
). Edge noise can result when
a digital signal propagates from an impedance mismatch while the signal rises. The reflection noise is
particularly troublesome in the TTL threshold region. For a 2-ns edge, the trace length must be less than
4 inches.
The clock signal trace should be as short as possible and should not run parallel to any high-speed signals.
To ensure a quality clock signal without high frequency noise components, decouple the supply terminals
on the clock driver. When necessary, transmission line techniques should be used on the clock by providing
controlled impedance striplines and parallel termination. The 2x clock doubler in the TVP3409 helps to
reduce signal quality problems and EMI radiations by reducing the frequency of the clock signal to the
device.
Analog Signals
The load resistor should be as close as possible to the DAC outputs. The resistor should equal the
destination termination which is usually a 75-
monitor. Unused analog outputs should be connected to
ground. The DAC output traces should be as short as possible to minimize any impedance mismatch in the
trace or video connector.
Match the impedance of the R, G, B traces with the termination (75
)
. The width of the traces are
determined by the distance from the ground plane and the dielectric constant of the PC board material. Keep
the R, G, B traces at least 20 to 50 mils wide. Series ferrite beads can be added to the analog video signal
to reduce high frequency signals coupled onto the DAC outputs or reflected from the monitor.
To reduce the interaction of the analog video return current with board components, a separate video ground
return trace can be added to the ground plane or signal layer. This trace connects directly to the ground of
the edge card connector (see Figure A–2). Using a separate video ground return path ensures that the
RAMDAC ground is not corrupted with video return current.
相關(guān)PDF資料
PDF描述
TVP3703-170 Video Interface PALETTE Exract(雙PLL，先進(jìn)的視頻接口調(diào)色器)
TVP3703-135 Video Interface PALETTE Exract(雙PLL，先進(jìn)的視頻接口調(diào)色器)
TVP3703FN VIDEO INTERFACE PALETTE TRUE-COLOR CMOS RAMDAC
TVP5020TQFP NTSC/PAL VIDEO DECODER
TVP5031 NTSC/PAL VIDEO DECODER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TVP3409-135CFN 制造商:Rochester Electronics LLC 功能描述:- Bulk
TVP3409-135FN 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Video DAC with Color Palette (RAMDAC)
TVP3409-170CFN 制造商:Rochester Electronics LLC 功能描述:- Bulk
TVP3409-170FN 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Video DAC with Color Palette (RAMDAC)
TVP3703 制造商:TI 制造商全稱:Texas Instruments 功能描述:VIDEO INTERFACE PALETTE TRUE-COLOR CMOS RAMDAC
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*