2004 Mar 01
42
Philips Semiconductors
Product specification
Digital video encoder
SAA7102; SAA7103
Table 40 Fine adjustment of DAC output voltage
Table 41 Subaddresses 17H to 19H
Table 42 Subaddress 1AH
BINARY
GAIN (%)
0111
7
0110
6
0101
5
0100
4
0011
3
0010
2
0001
1
0000
0
1000
0
1001
−
1
1010
−
2
1011
−
3
1100
−
4
1101
−
5
1110
−
6
1111
−
7
DATA BYTE
DESCRIPTION
RDACC
output level coarse adjustment for RED DAC; default after reset is 1BH for output of C signal
00000b
≡
0.585 V to 11111b
≡
1.240 V at 37.5
Ω
nominal for full-scale conversion
GDACC
output level coarse adjustment for GREEN DAC; default after reset is 1BH for output of VBS signal
00000b
≡
0.585 V to 11111b
≡
1.240 V at 37.5
Ω
nominal for full-scale conversion
BDACC
output level coarse adjustment for BLUE DAC; default after reset is 1FH for output of CVBS signal
00000b
≡
0.585 V to 11111b
≡
1.240 V at 37.5
Ω
nominal for full-scale conversion
DATA BYTE
DESCRIPTION
MSMT
monitor sense mode threshold for DAC output voltage, should be set to 70