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| 型號(hào)： | EVAL-ADV7180-32EBZ |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 36/116頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL FOR ADV7180 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | Advantiv® |
| 主要目的： | 視頻，SDTV 視頻解碼器 - NTSC，PAL，SECAM |
| 嵌入式： | 否 |
| 已用 IC / 零件： | ADV7180 |
| 主要屬性： | CVBS（復(fù)合），Y/C（S 視頻）和 YPrPb（元件）輸入 |
| 次要屬性： | 8 位 ITU-R BT.656 YCrCb 4:2:2 輸出 |
| 已供物品： | 板 |
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ADV7180
Data Sheet
Rev. I | Page 26 of 116
VIDEO PROCESSOR
DIGITIZED CVBS
DIGITIZED Y (YC)
VIDEO DATA
OUTPUT
STANDARD DEFINITION PROCESSOR
DIGITIZED CVBS
DIGITIZED C (YC)
MACROVISION
DETECTION
VBI DATA
RECOVERY
STANDARD
AUTODETECTION
LUMA
FILTER
LUMA
DIGITAL
FINE
CLAMP
LUMA
GAIN
CONTROL
LUMA
RESAMPLE
LUMA
2D COMB
SLLC
CONTROL
CHROMA
FILTER
CHROMA
DEMOD
fSC
RECOVERY
CHROMA
DIGITAL
FINE
CLAMP
CHROMA
GAIN
CONTROL
CHROMA
RESAMPLE
CHROMA
2D COMB
SYNC
EXTRACT
LINE
LENGTH
PREDICTOR
RESAMPLE
CONTROL
AV
CODE
INSERTION
MEASUREMENT
BLOCK (≥ I2C)
VIDEO DATA
PROCESSING
BLOCK
05700-
015
Figure 20. Block Diagram of the Video Processor
Figure 20 shows a block diagram of the ADV7180 video processor.
The ADV7180 can handle standard definition video in CVBS,
Y/C, and YPrPb formats. It can be divided into a luminance and
chrominance path. If the input video is of a composite type
(CVBS), both processing paths are fed with the CVBS input.
SD LUMA PATH
The input signal is processed by the following blocks:
Luma digital fine clamp. This block uses a high precision
algorithm to clamp the video signal.
Luma filter. This block contains a luma decimation filter
(YAA) with a fixed response and some shaping filters
(YSH) that have selectable responses.
Luma gain control. The automatic gain control (AGC) can
operate on a variety of different modes, including gain based
on the depth of the horizontal sync pulse, peak white mode,
and fixed manual gain.
Luma resample. To correct for line length errors as well as
dynamic line length changes, the data is digitally resampled.
Luma 2D comb. The 2D comb filter provides Y/C separation.
AV code insertion. At this point, the decoded luma (Y) signal
is merged with the retrieved chroma values. AV codes can
be inserted (as per ITU-R BT.656).
SD CHROMA PATH
The input signal is processed by the following blocks:
Chroma digital fine clamp. This block uses a high precision
algorithm to clamp the video signal.
Chroma demodulation. This block employs a color
subcarrier (fSC) recovery unit to regenerate the color
subcarrier for any modulated chroma scheme. The
demodulation block then performs an AM demodulation
for PAL and NTSC, and an FM demodulation for SECAM.
Chroma filter. This block contains a chroma decimation
filter (CAA) with a fixed response and some shaping filters
(CSH) that have selectable responses.
Chroma gain control. AGC can operate on several different
modes, including gain based on the color subcarrier
amplitude, gain based on the depth of the horizontal sync
pulse on the luma channel, or fixed manual gain.
Chroma resample. The chroma data is digitally resampled
to keep it perfectly aligned with the luma data. The
resampling is done to correct for static and dynamic line
length errors of the incoming video signal.
Chroma 2D comb. The 2D, five line, superadaptive comb
filter provides high quality Y/C separation in case the input
signal is CVBS.
AV code insertion. At this point, the demodulated chroma
(Cr and Cb) signal is merged with the retrieved luma values.
AV codes can be inserted (as per ITU-R BT.656).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EVAL-ADV7180-48EBZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:10-Bit, 4?? Oversampling SDTV Video Decoder |
| EVAL-ADV7180-48EBZ-8P-CAL | 制造商:Analog Devices 功能描述: |
| EVAL-ADV7180LFEB | 制造商:Analog Devices 功能描述:ADV7180 EVAL BOARD - Bulk |
| EVAL-ADV7180LFEBZ | 功能描述:BOARD EVAL FOR ADV7180 LFCSP RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:Advantiv® 標(biāo)準(zhǔn)包裝:1 系列:PSoC® 主要目的:電源管理，熱管理 嵌入式:- 已用 IC / 零件:- 主要屬性:- 次要屬性:- 已供物品:板，CD，電源 |
| EVAL-ADV7180LQEBZ | 功能描述:BOARD EVALUATION ADV7180 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:Advantiv® 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081 |
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