參數(shù)資料
型號(hào)： ADV7180BCPZ
廠商： ANALOG DEVICES INC
元件分類： 顏色信號(hào)轉(zhuǎn)換
英文描述： 10-Bit, 4 x Oversampling SDTV Video Decoder
中文描述： COLOR SIGNAL DECODER, QCC40
封裝： 6 X 6 MM, ROHS COMPLIANT, MO-220VJJD-2, LFCSP-40
文件頁數(shù)： 4/112頁
文件大?。?/td> 1320K
代理商： ADV7180BCPZ
ADV7180
INTRODUCTION
The ADV7180 is a versatile one-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.
The simple digital output interface connects gluelessly to a wide
range of MPEG encoders, codecs, mobile video processors, and
Analog Devides digital video encoders, such as the ADV7179.
External HS, VS, and FIELD signals provide timing references
for LCD controllers and other video ASICs that do not support
the ITU-R BT.656 interface standard.
ANALOG FRONT END
The ADV7180 analog front end comprises a single high speed,
10-bit, analog-to-digital converter (ADC) that digitizes the
analog video signal before applying it to the standard definition
processor. The analog front end employs differential channels
to the ADC to ensure high performance in mixed-signal
applications.
The front end also includes a 3-channel input mux that enables
multiple composite video signals to be applied to the ADV7180.
Current clamps are positioned in front of the ADC to ensure
that the video signal remains within the range of the converter.
A resistor divider network is required before each analog input
channel to ensure that the input signal is kept within the range
of the ADC (see Figure 24). Fine clamping of the video signal
is performed downstream by digital fine clamping within
the ADV7180.
Table 1 shows the three ADC clocking rates, which are determined
by the video input format to be processed—that is, INSEL[3:0].
These clock rates ensure 4× oversampling per channel for CVBS
mode and 2× oversampling per channel for Y/C and YPrPb modes.
Rev. A | Page 4 of 112
Table 1. ADC Clock Rates
Input Format
CVBS
Y/C (S-Video)
2
YPrPb
1
Based on a 28.6363 MHz crystal between the XTAL and XTAL1 pins.
2
Refer to INSEL[3:0] in Table 103 for the mandatory write for Y/C (S-video) mode.
ADC Clock Rate
1
57.27 MHz
86 MHz
86 MHz
Oversampling
Rate per Channel
4×
2×
2×
STANDARD DEFINITION PROCESSOR
The ADV7180 is capable of decoding a large selection of
baseband video signals in composite, S-video, and component
formats. The video standards supported by the video processor
include PAL B/D/I/G/H, PAL 60, PAL M, PAL N, PAL Nc,
NTSC M/J, NTSC 4.43, and SECAM B/D/G/K/L. The
ADV7180 can automatically detect the video standard and
process it accordingly.
The ADV7180 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 the
video standard and signal quality without requiring user
intervention. Video user controls such as brightness, contrast,
saturation, and hue are also available with the ADV7180.
The ADV7180 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
ADV7180 to track and decode poor quality video sources such
as VCRs and noisy sources from tuner outputs, VCD players,
and camcorders. The ADV7180 contains a chroma transient
improvement (CTI) processor that sharpens the edge rate of
chroma transitions, resulting in sharper vertical transitions.
The video processor can process a variety of VBI data services,
such as closed captioning (CCAP), wide-screen signaling
(WSS), copy generation management system (CGMS), EDTV,
Gemstar 1×/2×, and extended data service (XDS). Teletext data
slicing for world standard teletext (WST), along with program
delivery control (PDC) and video programming service (VPS),
are provided. Data is transmitted via the 8-bit video output port
as ancillary data packets (ANC). The ADV7180 is fully
Macrovision certified; detection circuitry enables Type I,
Type II, and Type 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
ADV7180BSTZ 10-Bit, 4 x Oversampling SDTV Video Decoder
ADV7181 Multiformat SDTV Video Decoder
ADV7181B Multiformat SDTV Video Decoder
ADV7181BBCPZ Multiformat SDTV Video Decoder
ADV7181BBSTZ Multiformat SDTV Video Decoder
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADV7180BCPZ 制造商:Analog Devices 功能描述:IC VIDEO DECODER 10BIT 57.27MSPS LFCSP40
ADV7180BCPZ-REEL 功能描述:IC VIDEO DECODER SDTV 40-LFCSP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動(dòng)電話，手機(jī)，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064
ADV7180BST48Z 功能描述:IC VID DECOD SDTV 10BIT 48LQFP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:電平移位器 應(yīng)用:LCD 電視機(jī)/監(jiān)控器 安裝類型:表面貼裝 封裝/外殼:28-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:28-WQFN（4x4）裸露焊盤 包裝:帶卷 (TR) 其它名稱:296-32523-2TPS65198RUYT-ND
ADV7180BST48Z-RL 功能描述:視頻 IC 48-Lead Low Profile Quad Flat Package RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel
ADV7180BSTZ 功能描述:IC VIDEO DECODER SDTV 64-LQFP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:電平移位器 應(yīng)用:LCD 電視機(jī)/監(jiān)控器 安裝類型:表面貼裝 封裝/外殼:28-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:28-WQFN（4x4）裸露焊盤 包裝:帶卷 (TR) 其它名稱:296-32523-2TPS65198RUYT-ND
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