TW9900

品牌：TECHWELL

型号：TW9900-NA1-GR

封装：QFN32

包装：4900.

年份：1336+9

数量：44100000

TECHWELL 大陆授权代理商.

深圳市亿威盛世科技有限公司.

联系人：徐波

电话：

qq:1134043964.

应用于产品范围;

1.GPS導航，網路攝像機，车载DVR,嵌入式DVR：

2.USB2.0模拟/数字采集盒, 2.4GHZ无线影音转换发射器,：

3.视频处理, 视频转换：PC TO TV,AV TO VGA , VGA TO YPBPR（可互转换）

4.音视频编解码/数字监控类

A、MPE4压缩卡

B、DM64446

C、软压缩视频采集卡/数字监控卡

5.嵌入式硬盘录像机, 视频服务器,画面分割器，画面处理器

6.音视频数码类/通信类,1394/USB2.0采集类

A、数字MP3/MP4,数码相框

B、1394卡/USB卡

C、外置式电视盒、USB电视盒/录像盒/采集盒、内置式电视卡、DVB-T、视频转换器（DVB-S TV CARD , LCD TV BOX ）

D、电脑摄像头ComosSesor （30万至130万像素）

KEY FEATURES

Video Decoder

NTSC （M, 4.43） ａnd PAL （B, D, G, H, I, M, N, N combination）, PAL （60）, SECAM support with automatic format detection

Software selectable analog inputs allow any of the following combinations, e.g. 2 CVBS or 1 Y/C.

Built-in analog anti-alias filter

Two 10-bit ADCs ａnd analog clamping circuit

Fully programmable static gain or automatic gain control for the Y channel

Programmable white peak control for the Y channel

4-H adaptive comb filter Y/C separation

PAL delay line for color phase error correction

Image enhancement with peaking ａnd CTI

Digital sub-carrier PLL for accurate color decoding

Digital Horizontal PLL for synchronization processing ａnd pixel sampling

Advanced synchronization processing ａnd sync detection for handling non-standard ａnd weak signal

Programmable hue, brightness, saturation, contrast, ａnd sharpness

Automatic color control ａnd color killer

Chroma IF compensation

Detection of level of copy protection according to Macrovision standard

ITU-R 601 or ITU-R 656 compatible YCbCr（4:2:2） output format

VBI slicer supporting industrial standard data services

VBI data pass through, raw ADC data output

Programmable output cropping

Miscellaneous

Two wire MPU serial bus interface

Supports Real Time Control interface

Power save ａnd Power down mode

Typical power consumption <100mW

Single 27MHz crystal for all standards

Supports 24.54MHz ａnd 29.5MHz crystal for high resolution square pixel format decoding

3.3V tolerant I/O

1.8V/3.3 V power supply

32 pin TQFP ａnd 32 pin QFN package

Qualified for automotive applications

DESCRIPTION

The TW9900 is a low power NTSC/PAL/SECAM video decoder chip that is designed for portable applications. It consumes less than 100mW in typical composite input applications. The available power down mode further reduces the power consumption. It uses the 1.8V for both analog ａnd digital supply voltage ａnd 3.3V for I/O power. A single 27MHz crystal is all that is needed to decode all analog video standards.

The video decoder decodes the base-band analog CVBS or S-video signals into digital 8-bit 4:2:2 YCbCr for output. It consists of analog front-end with input source selection, variable gain amplifier ａnd analog-to-digital converters, Y/C separation circuit, multi-standard color decoder （PAL BGHI, PAL M, PAL N, combination PAL N, NTSC M, NTSC 4.43 ａnd SECAM） ａnd synchronization circuitry. The Y/C separation is done with high quality adaptive 4H comb filter for reduced cross color ａnd cross luminance. The advanced synchronization processing circuitry can produce stable pictures for non-standard signal as well as weak signal. The output of the decoder is line-locked ａnd formatted to the ITU-R 656 output with embedded sync.

The TW9900 also includes circuits to detect ａnd process vertical blanking interval （VBI） signal. It slices ａnd processes VBI data for output through video bus. Some information can also be alternatively retrieved through the host interface. It also detects copy-protected signal according to Macrovision standard including AGC ａnd colorstripe pulses.

A 2-wire serial host interface is used to simplify system integration. All the functions can be controlled through this interface.

适用范围及用途：目前使用于倒车雷达，安防，DVD等方案上 2.产品规格： TW9900是Techwell的下一代低成本多标准视频解码器芯片，该芯片是为便携式应用而设计。体积小，功耗低，效果好。可应用便携多媒体，小尺寸视频监控，baby MONITOR , 汽车倒车系统。4.包装规格：一包4900PCS 应用于产品范围; 1.GPS導航，網路攝像機，车载DVR,嵌入式DVR： 2.USB2.0模拟/数字采集盒, 2.4GHZ无线影音转换发射器,：3.视频处理, 视频转换：PC TO TV,AV TO VGA , VGA TO YPBPR（可互转换）4.音视频编解码/数字监控类A、MPE4压缩卡B、DM64446C、软压缩视频采集卡/数字监控卡5.嵌入式硬盘录像机, 视频服务器,画面分割器，画面处理器6.音视频数码类/通信类,1394/USB2.0采集类A、数字MP3/MP4,数码相框B、1394卡/USB卡 C、外置式电视盒、USB电视盒/录像盒/采集盒、内置式电视卡、DVB-T、视频转换器（DVB-S TV CARD , LCD TV BOX ）D、电脑摄像头ComosSesor （30万至130万像素）

1.适用范围及用途：目前使用于倒车雷达，安防，DVD等方案上

2.产品规格：

TW9900是Techwell的下一代低成本多标准视频解码器芯片，该芯片是为便携式应用而设计。

体积小，功耗低，效果好。可应用便携多媒体，小尺寸视频监控，babymonitor,汽车倒车系统。

4.包装规格：一包4900PCS

应用于产品范围;

1.GPS導航，網路攝像機，车载DVR,嵌入式DVR：

2.USB2.0模拟/数字采集盒,2.4GHZ无线影音转换发射器,：

3.视频处理,视频转换：PCTOTV,AVTOVGA,VGATOYPBPR（可互转换）

4.音视频编解码/数字监控类

A、MPE4压缩卡

B、DM64446

C、软压缩视频采集卡/数字监控卡

5.嵌入式硬盘录像机,视频服务器,画面分割器，画面处理器

6.音视频数码类/通信类,1394/USB2.0采集类

A、数字MP3 MP4,数码相框

B、1394卡/USB卡

C、外置式电视盒、USB电视盒/录像盒/采集盒、内置式电视卡、DVB-T、视频转换器（DVB-STVCARD,LCDTVBOX）

D、电脑摄像头ComosSesor（30万至130万像素）