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參數資料
型號: 935262451518
廠商: NXP SEMICONDUCTORS
元件分類: 顏色信號轉換
英文描述: COLOR SIGNAL DECODER, PQFP100
封裝: 14 X 14 X 1.40 MM, PLASTIC, SOT-407, LQFP-100
文件頁數: 53/144頁
文件大小: 592K
代理商: 935262451518
2000 Mar 15
16
Philips Semiconductors
Preliminary specication
PAL/NTSC/SECAM video decoder with adaptive PAL/NTSC
comb lter, VBI-data slicer and high performance scaler
SAA7114H
Fig.7 Gain flow chart.
handbook, full pagewidth
ANALOG INPUT
AMPLIFIER
ANTI-ALIAS FILTER
ADC
LUMA/CHROMA DECODER
X
HSY
>254
<1
<4
>248
X = 0
X = 1
1/LLC2
+1/LLC2 1/LLC2
+/ 0
+1/F
+1/L
GAIN ACCUMULATOR (18 BITS)
ACTUAL GAIN VALUE 9-BIT (AGV) [
3/+6 dB]
X
STOP
HSY
Y
UPDATE
FGV
MHB531
AGV
GAIN VALUE 9-BIT
1
0
1
0
10
1
0
1
0
1
0
10
1
0
1
0
1
0
VBLK
1
0
NO ACTION
9
DAC
gain
HOLDG
X = system variable.
Y = (IAGV
FGVI) > GUDL.
VBLK = vertical blanking pulse.
HSY = horizontal sync pulse.
AGV = actual gain value.
FGV = frozen gain value.
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