Motorola DSP56156 Manual page 140

ON-CHIP CODEC FREQUENCY RESPONSE AND GAIN ANALYSIS
M
20
a
g
0
n
-20
i
t
-40
u
-60
d
e
-80
0.001
(
d
g
M
10
a
g
0
n
-10
i
t
-20
u
-30
d
e
-40
0.001
(
d
g
M
0.08
a
0.06
g
n
0.04
i
0.02
t
0
u
-0.02
d
e
-0.04
0.001
(
d
Figure 6-11 Log Magnitude Frequency Response of the
MOTOROLA
50 100
1 2 3
0.5 1 1.5
D/A Analog Low-pass Filter for F=512 KHz
DSP56156 ON-CHIP SIGMA/DELTA CODEC
150
Frequency (KHz)
4 5
Frequency (KHz)
2 2.5
Frequency (KHz)
analog-lp.Filter
200 256
analog-lp.Filter
6 7 8
analog-lp.Filter
3 3.5 4
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