SAA7151 Philips Semiconductors, SAA7151 Datasheet - Page 34

• Manufacturer Part Number: SAA7151
• Description: Digital multistandard colour decoder with SCART interface DMSD2-SCART
• Manufacturer: Philips Semiconductors

Philips Semiconductors
April 1993
BPSS1 to BPSS0
BFBY
CORI
APER1 to APER0
HUE7 to HUE0
“07”
CSTD2 to CSTD0
“08”
BYPS
“06”
PREF
CKTQ4 to CKTQ0 Colour killer threshold QAM (PAL/NTSC):
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Digital multistandard colour decoder with
SCART interface (DMSD2-SCART)
Input mode select bit:
Use of pre-emphasis (to be used if chrominance trap is active):
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Aperture bandpass to select different centre frequencies (Figures 25 to 40):
Bandfilter bypass switching:
Coring function:
Aperture factor (Figures 25 to 40):
Hue control from 178.6 to 180.0 , equals data bytes 7F to 80 (hex); 0 equals 00.
Forced colour standard of input signal;
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CKTQ4
1
1
0
BPSS1
0
0
1
1
APER1
0
0
1
1
CSTD2
0
0
0
0
1
1
1
1
CKTQ3
1
0
0
APER0
0
1
0
1
CSTD1
0
0
1
1
0
0
1
1
BPSS0
0
1
0
1
CKTQ2
1
0
0
CSTD0
0
1
0
1
0
1
0
1
0 = CVBS mode (chroma trap active)
1 = S-Video mode (chroma trap by-passed)
0 = pre-filter bypassed; 1 = pre-filter on
CKTQ1
1
0
0
34
centre frequency
4.1 MHz
3.8 MHz
2.6 MHz
2.9 MHz
0 = bandfilter active; 1 = bandfilter bypassed
0 = coring off; 1 = 1 LSB coring
factor
0
0.25
0.5
1
standard
PAL-B/G, -H, -I; 50 Hz
PAL-N; 50 Hz
SECAM; 50 Hz
PAL-M; 60 Hz
PAL 4.43; 60 Hz
NTSC-M; 60 Hz
NTSC 4.43; 60 Hz
black/white
CKTQ0
1
0
0
approximately 30 to 24 dB
24 dB to 18 dB
Product specification
SAA7151B