SAA7111A Datasheet, PDF (48/72 Pages) NXP Semiconductors – Enhanced Video Input Processor EVIP

Philips Semiconductors
Enhanced Video Input Processor (EVIP)
Product specification
SAA7111A
17.2.9 SUBADDRESS 09
Table 21 Luminance control SA 09, D7 to D0
FUNCTION
Aperture factor (APER)
Aperture factor = 0
Aperture factor = 0.25
Aperture factor = 0.5
Aperture factor = 1.0
Update time interval for AGC value (UPTCV)
Horizontal update (once per line)
Vertical update (once per field)
Vertical blanking luminance bypass (VBLB)
Active luminance processing
Luminance bypass during vertical blanking
Aperture band pass (centre frequency) (BPSS)
Centre frequency = 4.1 MHz
Centre frequency = 3.8 MHz; note 1
Centre frequency = 2.6 MHz; note 1
Centre frequency = 2.9 MHz; note 1
Prefilter active (PREF)
Bypassed
Active
Chrominance trap bypass (BYPS)
Chrominance trap active; default for CVBS mode
Chrominance trap bypassed; default for S-Video mode
Note
1. Not to be used with bypassed chrominance trap.
BIT NAME
LOGIC LEVEL CONTROL BIT
APER1
0
D1
APER0
0
D0
APER1
0
D1
APER0
1
D0
APER1
1
D1
APER0
0
D0
APER1
1
D1
APER0
1
D0
UPTCV
0
D2
UPTCV
1
D2
VBLB
0
D3
VBLB
1
D3
BPSS1
0
D5
BPSS0
0
D4
BPSS1
0
D5
BPSS0
1
D4
BPSS1
1
D5
BPSS0
0
D4
BPSS1
1
D5
BPSS0
1
D4
PREF
0
D6
PREF
1
D6
BYPS
0
D7
BYPS
1
D7
1998 May 15
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