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INMP510ACEZ-R0

P1-P3P4-P6P7-P9P10-P12P13-P14
INMP510
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 3. Frequency Response Mask
Figure 4. Typical Frequency Response (Measured)
Figure 5. PSR vs. Frequency, 100 mV p-p Swept Sine Wave
Figure 6. Total Harmonic Distortion + Noise (THD+N) vs. Input SPL
Figure 7. Linearity
Figure 8. Clipping Characteristics
20
–15
–10
–5
0
5
10
10
100
10k
FREQUENCY (Hz)
NORMALIZED AMPLITUDE (dB)
1k
15
15
–15
–10
–5
0
5
10
10 100 10k
FREQUENCY (Hz)
NORMALIZED AMPLITUDE (dB)
1k
–50
–51
–52
–53
–54
–55
–56
–57
–58
–59
–60
100 10k
FREQUENCY (Hz)
PSRR (dB)
1k
0.1
10
1
90 130120110100
INPUT (dB SPL)
THD + N (%)
-45
-40
-35
-30
-25
-20
-15
-10
-5
90 100 110 120 130
OUTPUT AMPLITUDE (dBV)
INPUT AMPLITUDE (dB SPL)
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0 1.00.5
TIME (ms)
OUTPUT (V)
120dB SPL
124dB SPL
128dB SPL
132dB SPL
Page 7 of 14
Document Number: DS-INMP510-00
Revision: 1.1
INMP510
APPLICATIONS INFORMATION
CONNECTING TO AUDIO CODECS
The output of the INMP510 can be connected to a dedicated codec microphone input (see Figure 9) or to a high input impedance
gain stage (see Figure 10). A 0.1 µF ceramic capacitor placed close to the INMP510 supply pin is used for testing and is
recommended to adequately decouple the microphone from noise on the power supply. A DC blocking capacitor is required at the
output of the microphone. This capacitor creates a high-pass filter with a corner frequency at
f
C
= 1/(2π × C × R)
where R is the input impedance of the codec.
A minimum value of 2.2 μF is recommended in Figure 9 because the input impedance of codecs can be as low as 2 kΩ at their
highest PGA gain setting, which results in a high-pass filter corner frequency at 37 Hz. Figure 10 shows the INMP510 connected to an
op amp configured as a noninverting preamplifier.
Figure 9. INMP510 Connected to a Codec
Figure 10. INMP510 Connected to an Op Amp
GAIN = (R1 + R2)/R1
INMP510
GND
OUTPUT
1µF
MINIMUM
0.1µF
10kΩ
R1 R2
VDD
V
REF
V
OUT
V
REF
AMP
1.8-3.3 V
ADC
OR
CODEC
IN
M
P
510
G
N
D
O
U
T
P
U
T
INPUT
M
I
CB
I
A
S
2
.
2
µ
F
M
I
N
I
M
U
M
0
.
1
µ
F
VDD
Page 8 of 14
Document Number: DS-INMP510-00
Revision: 1.1
INMP510
SUPPORTING DOCUMENTS
For additional information, see the following documents.
EVALUATION BOARD USER GUIDE
UG-325 Analog Output MEMS Microphone Flex Evaluation Board
APPLICATION NOTES (GENERAL)
AN-1003 Recommendations for Mounting and Connecting the Invensense, Bottom-Ported MEMS Microphones
AN-1068 Reflow Soldering of the MEMS Microphone
AN-1112 Microphone Specifications Explained
AN-1124 Recommendations for Sealing Invensense, Bottom-Port MEMS Microphones from Dust and Liquid Ingress
AN-1140 Microphone Array Beamforming
AN-1165 Op Amps for MEMS Microphone Preamp Circuits
AN-1181 Using a MEMS Microphone in a 2-Wire Microphone Circuit
APPLICATION NOTES (PRODUCT SPECIFIC)
AN-0207 High-Performance Analog MEMS Microphone Simple Interface-to-SigmaDSP Audio Codec
AN-0262 Low-Noise Analog MEMS Microphone and Preamp with Compression and Noise Gating
Page 9 of 14
Document Number: DS-INMP510-00
Revision: 1.1
P1-P3P4-P6P7-P9P10-P12P13-P14

INMP510ACEZ-R0

Mfr. #:
Buy INMP510ACEZ-R0
Manufacturer:
TDK InvenSense
Description:
MIC MEMS ANLG OMNI -38DB
Lifecycle:
New from this manufacturer.
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