SAA7146AH NXP Semiconductors, SAA7146AH Datasheet - Page 89

• Manufacturer Part Number: SAA7146AH
• Manufacturer: NXP Semiconductors

Specifications of SAA7146AH

• Lead Free Status / Rohs Status: Compliant

Philips Semiconductors
Table 85 Chrominance saturation control
7.12.8
Table 86 Chroma key range
2004 Aug 25
0
0
0
74
OFFSET
Multimedia bridge, high performance
Scaler and PCI circuit (SPCI)
(HEX)
D7
C
HROMA KEY
1
1
0
VL
VU
UL
UU
NAME
D6
1
0
0
31 to 24
23 to 16
15 to 8
7 to 0
BIT
D5
1
0
0
RW
RW
RW
RW
TYPE
D4
1
0
0
set lower limit V for chroma keying (8-bit; twos complement):
set upper limit V for chroma keying (8-bit; twos complement):
set lower limit U for chroma keying (8-bit; twos complement):
set upper limit U for chroma-keying (8-bit; twos complement):
1000 0000: as maximum negative value = 128 signal level
1000 0000: as maximum negative value = 128 signal level
0000 0000: limit = 0
0111 1111: as maximum positive value = +127 signal level
1000 0000: as maximum negative value = 128 signal level
0000 0000: limit = 0
0111 1111: as maximum positive value = +127 signal level
1000 0000: as maximum negative value = 128 signal level
0000 0000: limit = 0
0111 1111: as maximum positive value = +127 signal level
0000 0000: limit = 0
0111 1111: as maximum positive value = +127 signal level
D3
89
1
0
0
D2
1
0
0
D1
DESCRIPTION
1
0
0
D0
1.999 (max. saturation)
1 (CCIR level)
0 (colour off)
Product specification
SAA7146A
GAIN