SAA7109 PHILIPS [NXP Semiconductors], SAA7109 Datasheet - Page 159

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

Philips Semiconductors
18.2.2.15 Subaddress 0EH
Table 163 Chrominance control 1; 0EH[7:0]
18.2.2.16 Subaddress 0FH
Table 164 Chrominance gain control; 0FH[7:0]
2004 Mar 16
6 to 4 colour standard selection
6 to 0 chrominance gain value
BIT
BIT
PC-CODEC
7
7
3
2
0
clear DTO
disable chrominance
vertical filter and PAL
phase error correction
fast colour time constant
adaptive chrominance
comb filter
automatic chrominance
gain control
(if ACGC is set to logic 1)
DESCRIPTION
DESCRIPTION
CDTO
CSTD[2:0]
DCVF
FCTC
CCOMB
CGAIN[6:0] 000 0000 minimum gain (0.5)
SYMBOL
SYMBOL
ACGC
010 0100 nominal gain (1.125)
111 1111 maximum gain (7.5)
VALUE
VALUE
000
001
010
011
100
101
110
111
0
1
0
1
0
1
0
1
0
1
159
disabled
Every time CDTO is set, the internal subcarrier DTO
phase is reset to 0 and the RTCO output generates a
logic 0 at time slot 68 (see document “RTC Functional
Description” , available on request). So an identical
subcarrier phase can be generated by an external device
(e.g. an encoder).
PAL BGDHI (4.43 MHz)
NTSC 4.43 (50 Hz)
Combination-PAL N
(3.58 MHz)
NTSC N (3.58 MHz)
reserved
SECAM
chrominance vertical filter and PAL phase error
correction on (during active video lines)
chrominance vertical filter and PAL phase error
correction permanently off
nominal time constant
fast time constant for special applications
disabled
active
on
programmable gain via CGAIN6 to CGAIN0; need to be
set for SECAM standard
50 Hz/625 LINES
reserved; do not use
reserved; do not use
SAA7108E; SAA7109E
FUNCTION
FUNCTION
PAL 4.43 (60 Hz)
NTSC 4.43 (60 Hz)
PAL M (3.58 MHz)
NTSC-Japan (3.58 MHz)
reserved
NTSC M (3.58 MHz)
60 Hz/525 LINES
Product specification