參數(shù)資料
型號(hào): SAA7111
廠商: NXP Semiconductors N.V.
英文描述: Video Input Processor VIP
中文描述: 視頻輸入處理器貴賓
文件頁(yè)數(shù): 18/64頁(yè)
文件大?。?/td> 433K
代理商: SAA7111
1998 May 15
18
Philips Semiconductors
Product specification
Video Input Processor (VIP)
SAA7111
handbook, full pagewidth
ANALOG INPUT
AMPLIFIER
ANTI-ALIAS FILTER
ADC
LUMA/CHROMA DECODER
X
HSY
>254
>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) [
6/
+
6 dB]
X
STOP
HSY
Y
UPDATE
FGV
MGC652
AGV
GAIN VALUE 9-BIT
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
1
1
0
1
0
VBLK
1
0
NO ACTION
9
8
DAC
gain
HOLDG
Fig.11 Gain flow chart.
X = system variable; Y = AGV
FGVI > GUDL; VBLK = vertical blanking pulse;
HSY = horizontal sync pulse; AGV = actual gain value; FGV = frozen gain value.
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