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參數(shù)資料
型號： ADV7180
廠商： Analog Devices, Inc.
英文描述： 10-Bit, 4 x Oversampling SDTV Video Decoder
中文描述： 10位，4個采樣標(biāo)清視頻解碼器
文件頁數(shù)： 34/112頁
文件大小： 1320K
代理商： ADV7180
ADV7180
BETACAM, Enable Betacam Levels, Address 0x01 [5]
If YPrPb data is routed through the ADV7180, the automatic
gain control modes can target different video input levels, as
outlined in Table 40. Note that the BETACAM bit is valid only if
the input mode is YPrPb (component). The BETACAM bit sets
the target value for AGC operation.
A review of the following sections is useful:
MAN_MUX_EN, Manual Input Muxing Enable,
Address 0xC4 [7] for how component video (YPrPb)
can be routed through the ADV7180.
Video Standard Selection to select the various standards,
for example, with and without pedestal.
The automatic gain control (AGC) algorithms adjust the levels
based on the setting of the BETACAM bit (see Table 38).
Rev. A | Page 34 of 112
PW_UPD, Peak White Update, Address 0x2B [0]
The peak white and average video algorithms determine the
gain based on measurements taken from the active video. The
PW_UPD bit determines the rate of gain change. LAGC[2:0]
must be set to the appropriate mode to enable the peak white or
average video mode in the first place. For more information,
refer to the LAGC[2:0], Luma Automatic Gain Control,
Address 0x2C [6:4] section.
Setting PW_UPD to 0 updates the gain once per video line.
Setting PW_UPD to 1 (default) updates the gain once per field.
Chroma Gain
CAGC[1:0], Chroma Automatic Gain Control,
Address 0x2C [1:0]
The two bits of color automatic gain control mode select the
basic mode of operation for automatic gain control in the
chroma path.
Table 38. BETACAM Function
BETACAM
0 (default)
1
Description
Assuming YPrPb is selected as input format
Selecting PAL with pedestal selects MII
Selecting PAL without pedestal selects SMPTE
Selecting NTSC with pedestal selects MII
Selecting NTSC without pedestal selects SMPTE
Assuming YPrPb is selected as input format
Selecting PAL with pedestal selects BETACAM
Selecting PAL without pedestal selects BETACAM variant
Selecting NTSC with pedestal selects BETACAM
Selecting NTSC without pedestal selects BETACAM variant
Table 39. CAGC Function
CAGC[1:0]
00
01
10 (default)
11
Description
Manual fixed gain (use CMG[11:0])
Use luma gain for chroma
Automatic gain (based on color burst)
Freeze chroma gain
Table 40. Betacam Levels
Name
Y
Pb and Pr
Sync Depth
Betacam (mV)
0 to 714 (incl. 7.5% pedestal)
–467 to +467
286
Betacam Variant (mV)
0 to 714
–505 to +505
286
SMPTE (mV)
0 to 700
–350 to +350
300
MII (mV)
0 to 700 (incl. 7.5% pedestal)
–324 to +324
300
相關(guān)PDF資料
PDF描述
ADV7180BCPZ 10-Bit, 4 x Oversampling SDTV Video Decoder
ADV7180BSTZ 10-Bit, 4 x Oversampling SDTV Video Decoder
ADV7181 Multiformat SDTV Video Decoder
ADV7181B Multiformat SDTV Video Decoder
ADV7181BBCPZ Multiformat SDTV Video Decoder
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADV7180_12 制造商:AD 制造商全稱:Analog Devices 功能描述:10-Bit, 4?? Oversampling SDTV Video Decoder
ADV7180BCP32Z 制造商:Analog Devices 功能描述:10-BIT, 4? OVERSAMPLING SDTV VIDEO DECODER - Trays
ADV7180BCP32Z-RL 制造商:Analog Devices 功能描述:IC
ADV7180BCPZ 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:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:電平移位器 應(yīng)用:LCD 電視機/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
ADV7180BCPZ 制造商:Analog Devices 功能描述:IC VIDEO DECODER 10BIT 57.27MSPS LFCSP40
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