Datasheet

20 100 1k 10k
FREQUENCY (Hz)
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
PSRR (dB)
50 500 5k 20k200 2k
20 100 1k 10k
FREQUENCY (Hz)
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
PSRR (dB)
50 500 5k 20k200 2k
0.001
0.01
0.1
1
10
THD+N
(%)
0.002
0.02
0.2
2
0.005
0.05
0.5
5
10m 100m 1
MIC INPUT VOLTAGE (Vrms)
1m 20m 200m2m 50m 500m5m
0.001
0.01
0.1
1
10
THD+N
(%)
0.002
0.02
0.2
2
0.005
0.05
0.5
5
100P
MIC INPUT VOLTAGE (Vrms)
40m
200P 500P
1m 2m 5m 10m 20m
20
FREQUENCY (Hz)
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
+10
MAGNITUDE (dB)
1k 2k50 100 200 500
20
FREQUENCY (Hz)
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
+10
MAGNITUDE (dB)
1k 2k50 100 200 500
LM49370
www.ti.com SNAS356D –FEBRUARY 2007–REVISED MARCH 2012
Typical Performance Characteristics (continued)
(For all performance curves AV
DD
refers to the voltage applied to the A_V
DD
and LS_V
DD
pins. DV
DD
refers to the voltage
applied to the D_V
DD
and PLL_V
DD
pins; AV
DD
= 3.3V and DV
DD
= 3.3V unless otherwise specified.
MONO ADC HPF Frequency Response MONO ADC HPF Frequency Response
f
S
= 24kHz, 36dB MIC f
S
= 32kHz, 36dB MIC
(from left to right: HPF_MODE '00', '10', '01') (from left to right: HPF_MODE '00', '10', '01')
Figure 55. Figure 56.
MONO ADC THD+N MONO ADC THD+N
vs MIC Input Voltage vs MIC Input Voltage
(f
S
= 8kHz, 6dB MIC) (f
S
= 8kHz, 36dB MIC)
Figure 57. Figure 58.
MONO ADC PSRR MONO ADC PSRR
vs vs
Frequency Frequency
AV
DD
= 3.3V, 6dB MIC AV
DD
= 5V, 6dB MIC
Figure 59. Figure 60.
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