Datasheet

R
G
R
G
0.22 μF
R
F
R
F
V
S+
THS4531
To Analyzer
V
OUT+
10
V
OUT–
10
From Analyzer
100 pF
V
IN+
V
IN–
100 pF
+
–
V
OCM
−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
−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
THS4531
SLOS358B –SEPTEMBER 2011–REVISED MARCH 2012 www.ti.com
Figure 80. THS4531 Audio Analyzer Test Circuit
Figure 81. THD+N on Audio Analyzer, 10 Hz to 24 kHz
Figure 82. 1kHz FFT Plot on Audio Analyzer
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