CRD44800-ST-FB
27
-140
+0
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
r
A
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
F
igur
e 19.
FFT at
-
6
0
BFS
an
1
k