Cirrus Logic AN249 - Manual (Page 7)

AN249
7
Figure 5. CS5340 Passive Input Filter, Solution 1
-105
-80
-100
-95
-90
-85
d
B
F
S
20 20k 50 100 200 500 1k 2k 5k 10k
Hz
THD+N
Input = -1 dBFS
CS5340
VA
AIN
2200 pF
C0G
10
µF
100 k Ω
100 k Ω
100 k
Ω
150
Ω