Philips Semiconductors
Preliminary specification
PAL/NTSC/SECAM video decoder with adaptive PAL/NTSC
comb filter, VBI-data slicer and high performance scaler
SAA7114H
MHB544
handbook, full pagewidth
6
V
3
(dB)
0
−3
(1)
−6
−9
(2)
−12
(3)
−15
−18
−21
−24
−27
−30
−33
−36
(1) PFUV[1:0] = 01.
−39
(2) PFUV[1:0] = 10.
(3) PFUV[1:0] = 11.
−42
0
0.025
0.05
0.075
0.1
0.125
0.15
0.175
0.2
0.225
0.25
f_sig/f_clock
Fig.25 Chrominance prefilter characteristic.
MHB545
handbook, full pagewidth
6
V
(dB)
3
0
−3
−6
−9
(5)
(4)
(3)
(2)
(1)
−12
−15
−18
−21
−24
−27
−30
−33
−36
−39
−42
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5
f_sig/f_clock
1
XC2_1 = 0; Zero’s at f = n ×
with XACL = (1), (2), (3), (4) or (5)
------------------------
XACL + 1
Fig.26 Examples for prescaler filter characteristics: effect of increasing XACL[5:0].
44
2000 Mar 15
NXP [ NXP ]
