Datasheet

−140
−130
−120
−110
−100
−90
−80
−70
−60
−50
−40
−30
−20
−10
0
0 5k 10k 15k 20k 24k
Frequency (Hz)
Magnitude (dBV)
V
S
= 5 V
G = 1 V/V
V
OUT
= 1 V
RMS
R
F
= 2 kΩ
R
L
= 600 Ω
G071
−115
−113
−111
−109
−107
−105
−103
−101
−99
−97
−95
0 5k 10k 15k 20k 24k
Frequency (Hz)
THD+N (dB)
No Weighting
A−Weighting
V
S
= 5 V
G = 1 V/V
V
OUT
= 1 V
RMS
R
F
= 2 kΩ
R
L
= 600 Ω
G070
R
G
R
G
0.22 F
R
F
R
F
V
S+
THS4531A
To Analyzer
V
OUT+
10
V
OUT±
10
From Analyzer
100 pF
V
IN+
V
IN±
100 pF
+
±
V
OCM
THS4531A
www.ti.com SLOS823A –DECEMBER 2012–REVISED JANUARY 2013
Figure 82. THS4531A Audio Analyzer Test Circuit
Figure 83. THD+N on Audio Analyzer, 10 Hz to 24 kHz
Figure 84. 1kHz FFT Plot on Audio Analyzer
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