參數(shù)資料
型號: 935273916557
廠商: NXP SEMICONDUCTORS
元件分類: 顏色信號轉(zhuǎn)換
英文描述: COLOR SIGNAL DECODER, PBGA156
封裝: 15 X 15 MM, 1.15 MM HEIGHT, PLASTIC, MS-034, SOT-472-1, BGA-156
文件頁數(shù): 22/178頁
文件大?。?/td> 988K
代理商: 935273916557
2004 Jul 22
118
Philips Semiconductors
Product specication
Multistandard video decoder with adaptive
comb lter and component video input
SAA7118
15.2.4
SUBADDRESS 03H
Table 42 Analog input control 2 (AICO2); 03H[6:0]
15.2.5
SUBADDRESS 04H
Table 43 Analog input control 3 (AICO3): static gain control channel 1; 03H[0] and 04H[7:0]
15.2.6
SUBADDRESS 05H
Table 44 Analog input control 4 (AICO4); static gain control channel 2; 03H[1] and 05H[7:0]
BIT
DESCRIPTION
SYMBOL VALUE
FUNCTION
D6 HL not reference select
HLNRS
0
normal clamping if decoder is in unlocked state
1
reference select if decoder is in unlocked state
D5 AGC hold during vertical
blanking period
VBSL
0
short vertical blanking (AGC disabled during equalization
and serration pulses); recommended setting
1
long vertical blanking (AGC disabled from start of
pre-equalization pulses until start of active video (line 22 for
60 Hz, line 24 for 50 Hz)
D4 colour peak off
CPOFF
0
colour peak control active (AD signal is attenuated, if
maximum input level is exceeded, avoids clipping effects on
screen)
1
colour peak off
D3 automatic gain control
integration
HOLDG
0
AGC active
1
AGC integration hold (freeze)
D2 gain control x
GAFIX
0
automatic gain controlled by MODE5 to MODE0
1
gain is user programmable via GAI[17:10] and GAI[27:20]
D1 static gain control channel 2
sign bit
GAI28
see Table 44
D0 static gain control channel 1
sign bit
GAI18
see Table 43
DECIMAL
VALUE
GAIN
(dB)
SIGN BIT
03H[0]
CONTROL BITS D7 TO D0
GAI18
GAI17
GAI16
GAI15
GAI14
GAI13
GAI12
GAI11
GAI10
0...
3
0
00000000
...144
0
1
0
1
0
145...
0
1
0
1
0
1
...511
+6
1
DECIMAL
VALUE
GAIN
(dB)
SIGN BIT
03H[1]
CONTROL BITS D7 TO D0
GAI28
GAI27
GAI26
GAI25
GAI24
GAI23
GAI22
GAI21
GAI20
0...
3
0
00000000
...144
0
1
0
1
0
145...
0
1
0
1
0
1
...511
+6
1
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