參數(shù)資料
型號： SAF7118
廠商： NXP Semiconductors N.V.
英文描述： Multistandard video decoder with adaptive comb filter and component video input
中文描述： 多標準視頻解碼器與自適應(yīng)梳狀濾波器和分量視頻輸入
文件頁數(shù)： 28/173頁
文件大小： 950K
代理商： SAF7118
2004 Jul 22
28
Philips Semiconductors
Product speci
fi
cation
Multistandard video decoder with adaptive
comb
fi
lter and component video input
SAF7118
8.1.2.2
Luminance path
The rejection of the chrominance components within the
9-bit CVBS or Y input signal is achieved by subtracting the
remodulated chrominance signal from the CVBS input.
The comb filtered C
B
-C
R
components are interpolated
(upsampled) by the low-pass 3 block. Its characteristic is
controlled by LUBW (subaddress 09H, bit D4) to modify
the width of the chrominance ‘notch’ without influencing
the chrominance path. The programmable frequency
characteristicsavailable,in conjunctionwith theLCBW2to
LCBW0settings,canbeseeninFigs 14 to 17.Itshouldbe
noted that these frequency curves are only valid for
Y-comb disabled filter mode (YCOMB = 0). In comb filter
mode the frequency response is flat. The centre frequency
of the notch is automatically adapted to the chosen colour
standard.
The interpolated C
B
-C
R
samples are multiplied by two
time-multiplexed subcarrier signals from the subcarrier
generation block 2. This second DTO is locked to the first
subcarrier generator by an increment delay circuit
matchedtotheprocessingdelay,whichisdifferentforPAL
and NTSC standards according to the chosen comb filter
algorithm. The two modulated signals are finally added to
build the remodulated chrominance signal.
The frequency characteristic of the separated luminance
signal can be further modified by the succeeding
luminance filter block. It can be configured as peaking
(resolution enhancement) or low-pass block by LUFI3 to
LUFI0 (subaddress 09H, bits D3 to D0). The 16 resulting
frequency characteristics can be seen in Fig.18. The
LUFI3 to LUFI0 settings can be used as a user
programmable sharpness control.
The luminance filter block also contains the adjustable
Y-delay part; programmable by YDEL2 to YDEL0
(subaddress 11H, bits D2 to D0).
相關(guān)PDF資料
PDF描述
SAF7118EH Multistandard video decoder with adaptive comb filter and component video input
SAI-1011 Circular Connector; No. of Contacts:55; Series:MS27473; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:16; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:16-35 RoHS Compliant: No
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAF71-1808-05 制造商:FW Bell 功能描述:STANDARD AXIAL PROBE
SAF7118EH 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard video decoder with adaptive comb filter and component video input
SAF7118EH/V1/G 功能描述:視頻 IC 9BIT VIDEO DECODER 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
SAF7118EH/V1/G,518 功能描述:視頻 IC 9BIT VIDEO DECODER 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
SAF7118EH/V1/G,557 功能描述:視頻 IC 9BIT VIDEO DECODER 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
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