13.2 FFTlm
Figure 18 shows a typical FFT of the output from the CS5343 on the CDB5343 with a 2 Vrms, 1 kHz sinewave input. For this plot, the device was
configured for Single-Speed Mode with VA = 5 V.
+0
CS5343 FFT, 1 kHz Full-scale Input, VA = 5 V, SSM Master Mode
+0
-10
-10
-20
-20
-30
-30
-40
-40
-50
-50
-60
-60
-70
-70
d
-80
B
F
-90
S
-100
-80 d
-90
B
F
-100 S
-110
-110
-120
-120
-130
-130
-140
-140
-150
-150
-160
-160
-170
-170
-180
20
50
100
200
500
1k
2k
Hz
-180
5k
10k
20k
Sweep Trace Color Line Style Thick Data
Axis Comment
1
1
Blue Solid
1
Fft.Ch.1 Ampl Left
1
2
Red Solid
1
Fft.Ch.2 Ampl Right
Figure 18. FFT from CDB5343 Output