SAA7109 PHILIPS [NXP Semiconductors], SAA7109 Datasheet - Page 157

• Manufacturer Part Number: SAA7109
• Description: PC-CODEC
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
18.2.2.10 Subaddress 09H
Table 158 Luminance control; 09H[7:0]
18.2.2.11 Subaddress 0AH
Table 159 Luminance brightness control: decoder part; 0AH[7:0]
2004 Mar 16
3 to 0
PC-CODEC
BIT
7
6
5
4
128 (ITU level)
255 (bright)
OFFSET
chrominance trap/comb filter
bypass
adaptive luminance comb
filter
processing delay in non comb
filter mode
remodulation bandwidth for
luminance; see Figs 20 to 23
sharpness control, luminance
filter characteristic; see
Fig.24
0 (dark)
DESCRIPTION
DBRI7
1
1
0
SYMBOL VALUE
DBRI6
LUFI[3:0]
YCOMB
LUBW
BYPS
LDEL
1
0
0
DBRI5
0001
0010
0011
0100
0101
0110
0111
0000
1000
1001
1010
1011
1100
1101
1110
1111
1
0
0
0
1
0
1
0
1
0
1
157
CONTROL BITS 7 TO 0
chrominance trap or luminance comb filter active;
default for CVBS mode
chrominance trap or luminance comb filter bypassed;
default for S-video mode
disabled (= chrominance trap enabled, if BYPS = 0)
active, if BYPS = 0
processing delay is equal to internal pipelining delay
one (NTSC standards) or two (PAL standards) video
lines additional processing delay
small remodulation bandwidth (narrow chrominance
notch
large remodulation bandwidth (wider chrominance
notch
resolution enhancement filter; 8.0 dB at 4.1 MHz
resolution enhancement filter; 6.8 dB at 4.1 MHz
resolution enhancement filter; 5.1 dB at 4.1 MHz
resolution enhancement filter; 4.1 dB at 4.1 MHz
resolution enhancement filter; 3.0 dB at 4.1 MHz
resolution enhancement filter; 2.3 dB at 4.1 MHz
resolution enhancement filter; 1.6 dB at 4.1 MHz
plain
low-pass filter; 2 dB at 4.1 MHz
low-pass filter; 3 dB at 4.1 MHz
low-pass filter; 3 dB at 3.3 MHz; 4 dB at 4.1 MHz
low-pass filter; 3 dB at 2.6 MHz; 8 dB at 4.1 MHz
low-pass filter; 3 dB at 2.4 MHz; 14 dB at 4.1 MHz
low-pass filter; 3 dB at 2.2 MHz; notch at 3.4 MHz
low-pass filter; 3 dB at 1.9 MHz; notch at 3.0 MHz
low-pass filter; 3 dB at 1.7 MHz; notch at 2.5 MHz
DBRI4
1
0
0
higher luminance bandwidth)
smaller luminance bandwidth)
DBRI3
1
0
0
SAA7108E; SAA7109E
FUNCTION
DBRI2
1
0
0
Product specification
DBRI1
1
0
0
DBRI0
1
0
0