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參數(shù)資料
| 型號(hào)： | ADV7441ABSTZ-5P |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 6/28頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC DECODER DIGITIZER 144LQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | Advantiv® |
| 類型： | 視頻解碼器 |
| 應(yīng)用： | HDTV，投影儀，機(jī)頂盒 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 144-LQFP |
| 供應(yīng)商設(shè)備封裝： | 144-LQFP（20x20） |
| 包裝： | 托盤 |
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ADV7441A
Data Sheet
Rev. H | Page 14 of 28
FUNCTIONAL OVERVIEW
The following overview provides a brief description of the
functionality of the ADV7441A. More details are available in
the Theory of Operation section.
ANALOG FRONT END
The analog front end of the ADV7441A provides four high quality
10-bit ADCs to enable 10-bit video decoding, a multiplexer with
12 analog input channels to enable multisource connection
without the requirement of an external multiplexer, and four
current and voltage clamp control loops to ensure that dc offsets
are removed from the video signal. SCART functionality and
standard definition RGB overlay with CVBS are controlled by
the FB input.
HDMI RECEIVER
The ADV7441A is compatible with the HDMI specification.
The ADV7441A supports all HDTV formats up to 1080p and
all display resolutions up to UXGA (1600 × 1200 at 60 Hz).
The device includes the following features:
Adaptive front-end equalization for HDMI operation with
cable lengths up to 30 meters
Synchronization conditioning for higher performance in
strenuous conditions
Audio mute for removing extraneous noise
Programmable data island packet interrupt generator
STANDARD DEFINITION PROCESSOR PIXEL DATA
OUTPUT MODES
The ADV7441A features the following SDP output modes:
8-/10-bit ITU-R BT.656 4:2:2 YCrCb with embedded time
codes and/or HS, VS, and FIELD
16-/20-bit YCrCb 4:2:2 with embedded time codes and/or
HS, VS, and FIELD
24-/30-bit YCrCb 4:4:4 with embedded time codes and/or
HS, VS, and FIELD
COMPONENT PROCESSOR PIXEL DATA OUTPUT
MODES
The ADV7441A features single data rate outputs as follows:
8-/10-bit 4:2:2 YCrCb for 525i and 625i
16-/20-bit 4:2:2 YCrCb for all standards
24-/30-bit 4:4:4 YCrCb/RGB for all standards
COMPOSITE AND S-VIDEO PROCESSING
The ADV7441A supports NTSC (M/J/4.43), PAL (B/D/I/G/H/
M/N/Nc/60), and SECAM (B/D/G/K/L) standards for CVBS
and S-Video formats. Superadaptive 2D, 5-line comb filters for
NTSC and PAL provide superior chrominance and luminance
separation for composite video.
The composite and S-Video processing functionalities also
include fully automatic detection of switching among
worldwide standards (PAL/NTSC/SECAM); automatic gain
control (AGC) with white peak mode to ensure that the video
is processed without compromising the video processing range;
Adaptive Digital Line Length Tracking (ADLLT); and proprietary
architecture for locking to weak, noisy, and unstable sources
from VCRs and tuners. The IF filter block compensates for high
frequency luma attenuation due to the tuner SAW filter.
The ADV7441A also features chroma transient improvement
(CTI) and luminance digital noise reduction (DNR), as well as
teletext, closed captioning (CC), extended data service (EDS), and
wide-screen signaling (WSS). It offers certified Macrovision copy
protection detection on composite and S-Video for all worldwide
formats (PAL/NTSC/SECAM), and a copy generation management
system (CGMS). Other features include 4× oversampling (54 MHz)
for CVBS, S-Video, and YUV modes; line-locked clock output
(LLC); vertical interval time codes (VITC); support for letterbox
detection; a free-run output mode for stable timing when no
video input is present; clocking from a single 28.63636 MHz
crystal; and subcarrier frequency lock (SFL) output for downstream
video encoders.
In addition, the device has color controls for hue, brightness,
saturation, and contrast and controls for Cr and Cb offsets. The
ADV7441A also incorporates a vertical blanking interval data
processor and a video programming system (VPS) on the device.
The differential gain of the ADV7441A is 0.6% typical, and the
differential phase is 0.3° typical.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| ADV7441ABSTZ-5P-U3 | 制造商:Analog Devices 功能描述:DECODER - Trays |
| ADV7441BSTZ-110 | 制造商:Analog Devices 功能描述:10-BIT INTEGRATED MULTIFORMAT VIDEO DECODER - Trays |
| ADV7441BSTZ-150 | 制造商:Analog Devices 功能描述: |
| ADV74425701 | 制造商:LG Corporation 功能描述:Frame Assembly |
| ADV74426701 | 制造商:LG Corporation 功能描述:Frame Assembly |
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