Philips SAA7102 Datasheet page 47

Philips Semiconductors
Digital video encoder
Table 57 Subaddress 5EH
DATA BYTE DESCRIPTION
BLNNL variable blanking level
Notes
1. Output black level/IRE = BLNNL × 2/6.29 + 25.4.
2. Output black level/IRE = BLNNL × 2/6.18 + 25.9; default after reset: 35H.
Table 58 Subaddress 5FH
DATA BYTE
CCRS select cross-colour reduction filter in luminance; see Table 59
BLNVB variable blanking level during vertical blanking interval is typically identical to value of BLNNL
Table 59 Logic levels and function of CCRS
CCRS1 CCRS0
0 0
0 1
1 0
1 1
Table 60 Subaddress 61H
LOGIC
DATA BYTE
LEVEL
DOWND 0
1
DOWNA 0
1
YGS 0
1
SCBW 0
1
PAL 0
1
FISE 0
1
2004 Mar 01
CONDITIONS
white-to-sync = 140 IRE;
note 1
BLNNL = 0; note 1
BLNNL = 63 (3FH); note 1
white-to-sync = 143 IRE;
note 2
BLNNL = 0; note 2
BLNNL = 63 (3FH); note 2
no cross-colour reduction; for overall transfer characteristic of luminance see Fig.6
cross-colour reduction #1 active; for overall transfer characteristic see Fig.6
cross-colour reduction #2 active; for overall transfer characteristic see Fig.6
cross-colour reduction #3 active; for overall transfer characteristic see Fig.6
digital core in normal operational mode; default after reset
digital core in sleep mode and is reactivated with an I
DACs in normal operational mode; default after reset
DACs in Power-down mode
luminance gain for white − black 100 IRE
luminance gain for white − black 92.5 IRE including 7.5 IRE set-up of black
enlarged bandwidth for chrominance encoding (for overall transfer characteristic of
chrominance in baseband representation see Figs 4 and 5)
standard bandwidth for chrominance encoding (for overall transfer characteristic of
chrominance in baseband representation see Figs 4 and 5); default after reset
NTSC encoding (non-alternating V component)
PAL encoding (alternating V component)
864 total pixel clocks per line
858 total pixel clocks per line
recommended value: BLNNL = 46 (2EH)
output blanking level = 25 IRE
output blanking level = 45 IRE
recommended value: BLNNL = 53 (35H)
output blanking level = 26 IRE
output blanking level = 46 IRE
DESCRIPTION
DESCRIPTION
DESCRIPTION
47
Product specification
SAA7102; SAA7103
REMARKS
2
C-bus address