參數(shù)資料
型號: 935211970551
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝: PLASTIC, SOT-393, QFP-64
文件頁數(shù): 9/67頁
文件大?。?/td> 443K
代理商: 935211970551
1998 May 15
17
Philips Semiconductors
Product specication
Video Input Processor (VIP)
SAA7111
9
GAIN CHARTS
Fig.9 Amplifier curve.
handbook, halfpage
0
7.5
5.5
dB
3.5
1.5
0.5
4.5
2.5
256
512
gain value (i)
MGC648
bit [8] = 1
factor dB = 20 x log 10 gain =
(
512
768
i
i > 256
bit [8] = 0
factor dB = 20 x log 10 gain =
(
512
257
+ i
(
i < 256
(
Fig.10 Clamp and gain flow.
WIPE = white peak level (254); SBOT = sync bottom level (1); CLL = clamp level [60 Y (128 C)];
HSY = horizontal sync pulse; HCL = horizontal clamp pulse.
handbook, full pagewidth
10
+ CLAMP
CLAMP
NO CLAMP
10
01
10
MGC647
fast
GAIN
slow
+ GAIN
GAIN
HCL
HSY
ADC
SBOT
WIPE
CLL
ANALOG INPUT
GAIN ->
<- CLAMP
VBLK
NO BLANKING ACTIVE
10
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