SAA7151 Philips Semiconductors, SAA7151 Datasheet - Page 15

• Manufacturer Part Number: SAA7151
• Description: Digital multistandard colour decoder with SCART interface DMSD2-SCART
• Manufacturer: Philips Semiconductors

Philips Semiconductors
April 1993
handbook, full pagewidth
handbook, full pagewidth
Digital multistandard colour decoder with
SCART interface (DMSD2-SCART)
new
old
FS
UV
LL6.75
LL27
FS
UV
LL3.375
LL27
Fig.9 Weighting factors of fast switching for 4:2:2 and 4:1:1 formats.
T(n 2)
0 old
1/8 old
1/4 old
3/8 old
1/2 old
5/8 old
3/4 old
7/8 old
0
0
0
0
1 new
1 7/8 3/4 5/8 1/2 3/8 1/4 1/8
1
1
1
7/8 new
3/4 new
5/8 new
1/2 new
3/8 new
1/4 new
1/8 new
U0, V0
3/4 1/2 1/4
Fig.8 Addition of weighted components.
2
2
3
3
U0, V0
T(n 1)
1
4
4
5
5
U1, V1
fast switch weighting for 4:2:2 format
6
6
7
7
15
2
8
1
8
T(n)
9
9
fast switch weighting for 4:1:1 format
U2, V2
10 11 12 13 14 15 16
10 11 12 13 14 15 16
Note: in 4:2:2 format weighting
U1, V1
3
in 1/4 steps only.
T(n 1)
U3, V3
3
4
MEH308
T(n 2)
Product specification
MEH307
SAA7151B