参数资料
型号: TVP5156PNPR
厂商: TEXAS INSTRUMENTS INC
元件分类: 颜色信号转换
英文描述: COLOR SIGNAL DECODER, PQFP128
封装: GREEN, PLASTIC, HTQFP-128
文件页数: 17/108页
文件大小: 1395K
代理商: TVP5156PNPR
Anti-Aliasing
Filter
Analog
CVBS Input
Clamp
ADC
Reference & Bias
Output to
Digital
Processing
Frequency Response
-35
-30
-25
-20
-15
-10
-5
0
5
-
5
10
15
20
25
Frequency (MHz)
G
a
in
(d
B
)
SLES243E
– JULY 2009 – REVISED MARCH 2011
3
Functional Description
3.1
Analog Video Processing and A/D Converters
Each video decoder accepts one composite video input and performs video clamping, anti-aliasing
filtering, video amplification, A/D conversion, and gain and offset adjustments to center the digitized video
signal. Figure 3-1 shows the video analog processing and ADC block diagram.
Figure 3-1. Video Analog Processing and ADC Block Diagram
3.1.1
Analog Video Input
Supports NTSC (J, M, 4.43) and PAL (B, D, G, H, I, M, N, Nc, 60) video standards. Each video decoder
channel supports a composite video input with a pseudo-differential pin which improves the noise
immunity and analog performance.
Each video decoder input should be ac-coupled through a 0.1-
F capacitor. The nominal parallel
termination resistor before the input to the device is 75
.
Each video decoder integrates an anti-aliasing filter to provide good stop-band rejection on the analog
video input signal. Figure 3-2 shows the frequency response of the anti-aliasing filter.
Figure 3-2. Anti-Aliasing Filter Frequency Response
16
Functional Description
Copyright
2009–2011, Texas Instruments Incorporated
Product Folder Link(s): TVP5158 TVP5157 TVP5156
相关PDF资料
PDF描述
TVP5156PNP COLOR SIGNAL DECODER, PQFP128
TVP5158IPNPR COLOR SIGNAL DECODER, PQFP128
TVP5158IPNP COLOR SIGNAL DECODER, PQFP128
TVP5158PNPR COLOR SIGNAL DECODER, PQFP128
TVP5158PNP COLOR SIGNAL DECODER, PQFP128
相关代理商/技术参数
参数描述
TVP5157PNP 功能描述:视频 IC 4Ch NTSC/PAL Video Decoder RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel
TVP5157PNPR 功能描述:视频 IC 4Ch NTSC/PAL Video Decoder RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel
TVP5158 制造商:TI 制造商全称:Texas Instruments 功能描述:With Independent Scalers, Noise Reduction, Auto Contrast, and Flexible Output Formatter for Security and Other Multi-Channel Video Applications
TVP5158EVM 功能描述:视频 IC 开发工具 TVP5158 Eval Mod RoHS:否 制造商:Texas Instruments 产品:Evaluation Boards 类型:YPbPr to RGBHV Converters 工具用于评估:LMH1251 工作电源电压:5 V
TVP5158IPNP 功能描述:视频 IC 4Ch NTSC/PAL Video Decoder RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel