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參數(shù)資料
| 型號： | ADV7183A |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Multiformat SDTV Video Decoder |
| 中文描述： | 標(biāo)清多格式視頻解碼器 |
| 文件頁數(shù)： | 4/104頁 |
| 文件大小： | 894K |
| 代理商： | ADV7183A |
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ADV7183A
INTRODUCTION
The ADV7183A is a high quality, single chip, multiformat video
decoder that automatically detects and converts PAL, NTSC,
and SECAM standards in the form of composite, S-Video, and
component video into a digital ITU-R BT.656 format.
Rev. A | Page 4 of 104
The advanced and highly flexible digital output interface
enables performance video decoding and conversion in line-
locked clock based systems. This makes the device ideally suited
for a broad range of applications with diverse analog video
characteristics, including tape based sources, broadcast sources,
security/surveillance cameras, and professional systems.
ANALOG FRONT END
The ADV7183A analog front end comprises three 10-bit ADCs
that digitize the analog video signal before applying it to the
standard definition processor. The analog front end employs
differential channels to each ADC to ensure high performance
in mixed-signal applications.
The front end also includes a 12-channel input mux that enables
multiple video signals to be applied to the ADV7183A. Current
and voltage clamps are positioned in front of each ADC to
ensure that the video signal remains within the range of the
converter. Fine clamping of the video signals is performed
downstream by digital fine clamping within the ADV7183A.
The ADCs are configured to run in 4× oversampling mode.
STANDARD DEFINITION PROCESSOR
The ADV7183A is capable of decoding a large selection of
baseband video signals in composite, S-Video, and component
formats. The video standards supported by the SDP include
PAL B/D/I/G/H, PAL60, PAL M, PAL N, PAL Nc, NTSC M/J,
NTSC 4.43, and SECAM B/D/G/K/L. The ADV7183A can
automatically detect the video standard and process it
accordingly.
The ADV7183A has a 5-line, superadaptive, 2D comb filter that
gives superior chrominance and luminance separation when
decoding a composite video signal. This highly adaptive filter
automatically adjusts its processing mode according to video
standard and signal quality with no user intervention required.
Video user controls such as brightness, contrast, saturation, and
hue are also available within the ADV7183A.
The ADV7183A implements a patented adaptive digital line-
length tracking (ADLLT) algorithm to track varying video line
lengths from sources such as a VCR. ADLLT enables the
ADV7183A to track and decode poor quality video sources
such as VCRs, noisy sources from tuner outputs, VCD players,
and camcorders. The ADV7183A contains a chroma transient
improvement (CTI) processor that sharpens the edge rate of
chroma transitions, resulting in sharper vertical transitions.
The SDP can process a variety of VBI data services, such as
closed captioning (CC), wide screen signaling (WSS), copy
generation management system (CGMS), EDTV, Gemstar
1×/2×, and extended data service (XDS). The ADV7183A is
fully Macrovision certified; detection circuitry enables Type I,
II, and III protection levels to be identified and reported to the
user. The decoder is also fully robust to all Macrovision signal
inputs.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADV7183ABST | Multiformat SDTV Video Decoder |
| ADV7183AKST | Multiformat SDTV Video Decoder |
| ADV7330 | Multiformat 11-Bit Triple DAC Video Encoder |
| ADV7330KST | Multiformat 11-Bit Triple DAC Video Encoder |
| ADXL321 | Small and Thin 18 g Accelerometer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADV7183ABST | 制造商:Analog Devices 功能描述: 制造商:Rochester Electronics LLC 功能描述: |
| ADV7183AKST | 制造商:Analog Devices 功能描述:MULTIFORMAT SDTV VIDEO DECODER 制造商:Rochester Electronics LLC 功能描述:10BIT NTSC/PAL/SECAMVIDDECOD I.C - Tape and Reel 制造商:Analog Devices 功能描述:IC VIDEO ENCODER |
| ADV7183AKST-U1 | 制造商:Analog Devices 功能描述:VID DECODER 80LQFP - Bulk |
| ADV7183AKST-X2 | 制造商:Analog Devices 功能描述:VID DECODER - Bulk |
| ADV7183AXST | 制造商:Analog Devices 功能描述:VIDEO DECODER I.C. - Bulk |
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