saa7114 NXP Semiconductors, saa7114 Datasheet - Page 47

• Manufacturer Part Number: saa7114
• Description: Pal/ntsc/secam Video Decoder With Adaptive Pal/ntsc Combfilter, Vbi-data Slicer And High Performance Scaler
• Manufacturer: NXP Semiconductors

Philips Semiconductors
SAA7114_3
Product data sheet
Fade-in and fade-out of the filters is achieved by copying an original source sample each
as first and last pixel after prescaling.
Figure 27
Table 11:
PFUV[1:0] A2h[7:6] and
PFY[1:0] A2h[5:4]
00
01
10
11
Fig 27. Luminance prefilter characteristic
Fig 28. Chrominance prefilter characteristic
(1) PFUV[1:0] = 01.
(2) PFUV[1:0] = 10.
(3) PFUV[1:0] = 11.
(1) PFY[1:0] = 01.
(2) PFY[1:0] = 10.
(3) PFY[1:0] = 11.
and
FIR prefilter functions
(dB)
(dB)
Figure 28
V
V
12
15
18
21
24
27
30
33
36
39
42
12
15
18
21
24
27
30
33
36
39
42
6
3
0
3
6
9
6
3
0
3
6
9
0
0
Rev. 03 — 17 January 2006
show the frequency characteristics of the selectable FIR filters.
0.025
0.05
Luminance filter coefficients
bypassed
1 2 1
1 2 2 2 1
1 1 1.75 4.5 1.75 1 1
0.05
0.1
0.075
0.15
0.10
0.2
(3)
(3)
(2)
0.125
0.25
PAL/NTSC/SECAM video decoder
(2)
(1)
(1)
0.15
0.3
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Chrominance coefficients
bypassed
1 2 1
3 8 10 8 3
1 2 2 2 1
0.175
0.35
SAA7114
0.20
0.4
0.225
0.45
f_sig/f_clock
f_sig/f_clock
mhb543
mhb544
47 of 144
0.25
0.5