SAA7151 Philips Semiconductors, SAA7151 Datasheet - Page 35

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

Philips Semiconductors
April 1993
OSCE
“09”
LFIS1 to LFIS0
CKTS4 to CKTS0
PLSE7 to PLSE0
“0A”
SESE7 to SESE0
“0B”
FSAU; GPSI2,
and GPSI1
“0C”
CGFX
AMPF3 to AMPF0 Chrominance amplification factor
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- - - - - - - -
Digital multistandard colour decoder with
SCART interface (DMSD2-SCART)
External UV offset compensation: 0 = disabled; 1 = enabled
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Chrominance gain control (AGC filter):
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Colour killer threshold SECAM as previously described under CKTQ subaddress “08”
PAL switch sensitivity from LOW to HIGH (HIGH means immediate sequence correction), equals FF to
00 (hex), MEDIUM equals 80.
SECAM switch sensitivity from LOW to HIGH (HIGH means immediate sequence correction), equals FF
to 00 (hex), MEDIUM equals 80.
Set port outputs (general purpose switching, internal)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Chrominance gain pre-determination: 0 = gain controlled via loop; 1 = gain set by AMPF-bits
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
LFIS1
0
0
1
1
FSAU
0
0
0
0
1
AMPF3
0
0
0
1
LFIS0
0
1
0
1
GPSI2
0
0
1
1
X
AMPF2
0
1
1
1
GPSI1
0
1
0
1
X
AMPF1
0
0
0
1
AMPF0
0
0
1
1
35
control of loop filter time constant
slow
medium
fast
actual gain, stored (for test purposes only)
output GPSW2 (pin 25)
LOW
LOW
HIGH
HIGH
status bit FSST1 set
gain
0 dB
6 dB
1.5 dB
3 to 16.5 dB (approximately 1.5 dB steps)
17 dB
output GPSW1 (pin 24)
LOW
HIGH
LOW
HIGH
status bit FSST0 set
Product specification
SAA7151B