參數(shù)資料
型號(hào): 935263652557
廠商: NXP SEMICONDUCTORS
元件分類(lèi): 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝: PLASTIC, SOT-393, QFP-64
文件頁(yè)數(shù): 15/75頁(yè)
文件大小: 479K
代理商: 935263652557
1998 May 15
22
Philips Semiconductors
Product specication
Enhanced Video Input Processor (EVIP)
SAA7111A
Fig.14 Gain flow chart.
X = system variable; Y = IAGV
FGVI > GUDL; VBLK = vertical blanking pulse;
HSY = horizontal sync pulse; AGV = actual gain value; FGV = frozen gain value.
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) [
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
1
0
1
0
VBLK
1
0
NO ACTION
9
8
DAC
gain
HOLDG
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