WM8816_04 Datasheet, PDF (9/13 Pages) Wolfson Microelectronics plc – Stereo Digital Volume Control

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PERFORMANCE GRAPHS
WM8816
-70
-80
-90
THD+N
(dB) _-100
-110
-120
-60
-50
-40
-30
-20
-10
+0
+10
Input Signal Level (dBV)
Figure 2 THD + Noise versus input level at gains of +6dB, 0dB, -6dB, -12dB and mute
+0
-20
-40
d
-60
B
V
-80
-100
-120
-140
5k
10k
15k
20k
25k
30k
Frequency (Hz)
Figure 3 FFT of output signal with 1kHz, 1Vrms sine wave input
+0
-20
-40
d
-60
B
V
-80
-100
-120
-140
5k
10k
15k
20k
25k
30k
Frequency (Hz)
Figure 4 FFT of output signal with 10kHz, 1Vrms sine wave input
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PP Rev 1.5 October 2004
9