MP23DB01HP
MEMS audio sensor:
digital microphone with multiple performance modes
Datasheet
-
production data
Applications
Smartphones and handsets
Laptop and notebook computers
RHLGA 4LD 4x2x0.85
Wearable devices
Devices enabling always-on feature
Digital still and video cameras
RHLGA 5LD (3.5 x 2.65 x 0.98 mm)
Antitheft systems
Features
Omnidirectional digital microphone
Very low distortion / very high AOP
– 135 dBSPL acoustic overload point
Multiple performance modes
(sleep, low-power, performance)
Typ. current consumption
– 2 μA (sleep mode)
– 285 μA (low-power mode)
– 800 μA (performance mode)
Sensitivity matching
PDM single-bit output with option for stereo
configuration
RHLGA package
– Bottom-port design
– SMD-compliant
– EMI-shielded
– ECOPACK, RoHS and “Green” compliant
Description
The MP23DB01HP is an ultra-compact, low-
power, omnidirectional, digital MEMS microphone
built with a capacitive sensing element and an IC
interface with stereo operation capability.
The sensing element, capable of detecting
acoustic waves, is manufactured using a
specialized silicon micromachining process
dedicated to producing audio sensors.
The IC interface is manufactured using a CMOS
process that allows designing a dedicated circuit
able to provide a digital signal externally in PDM
format.
The MP23DB01HP offers multiple performance
modes (power-down, low-power and performance
mode) enabled by different clock frequency
ranges. The device has a very high AOP in
performance mode, sensitivity range of ±1 dB and
high SNR for all operative modes.
The MP23DB01HP is available in a bottom-port,
SMD-compliant, EMI-shielded package and is
guaranteed to operate over an extended
temperature range from -40 °C to +85 °C.
Table 1. Device summary
Part number
MP23DB01HPTR
Temperature range [°C]
-40 to +85
Package
RHLGA 5LD (3.5 x 2.65 x 0.98) mm
Packing
Tape and reel
July 2020
This is information on a product in full production.
DocID034289 Rev 2
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Contents
MP23DB01HP
Contents
1
2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Acoustic and electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1
2.2
2.3
Acoustic and electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Timing characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3
4
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1
L/R channel selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5
6
7
Application recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
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MP23DB01HP
Pin description
1
Pin description
Figure 1. Pin connections
Table 2. Pin description
Pin #
1
2
3 (ground ring)
4
5
Pin name
DOUT
L/R
GND
CLK
VDD
Function
Left/right PDM data output
Left/right channel selection
0 V supply
Synchronization input clock
Supply voltage
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Acoustic and electrical specifications
MP23DB01HP
2
2.1
Acoustic and electrical specifications
Acoustic and electrical characteristics
The values listed in the table below are specified for Vdd = 1.8 V, Clock = 2.4 MHz,
T = 25 °C, no load, unless otherwise noted.
Table 3. General microphone specifications
Symbol
Vdd
fclk
Parameter
Supply voltage
Test condition
Min.
1.6
Typ.
(1)
1.8
0.768
2.4
285
800
880
2
Max.
3.6
0.15
1.1
3.3
Unit
V
MHz
Power-down mode
Clock frequency range
(2)(3)
Current consumption in
low-power mode
Current consumption in
performance mode
Current consumption in
power-down
(4)
Short-circuit current
Low-level logic input/output
voltage
High-level logic input/output
voltage
Wake-up time
(5)
Frequency response
DOUT load capacitance
Operating temperature range
Iout = 1 mA
Iout = 1 mA
Guaranteed by design
-3 dB point
Low-power mode
Performance mode
Idd
Idd
IddPdn
Icc
V
IOL
V
IOH
TWK
Roll-off
Cload
Top
Fc = 768 kHz
Fc = 2.4 MHz
Fc = 3.072 MHz
0
0.54
1.5
μA
μA
μA
5
10
0.35xVdd
Vdd+0.3
10
μA
mA
V
V
ms
Hz
100
pF
°C
+85
1
-0.3
0.65xVdd
35
-40
1. Typical specifications are not guaranteed.
2. Duty cycle: min = 40% max = 60%
3. In case of mode change (from low-power to performance mode or vice versa), the clock has to be continuous or has to be
stopped for at least 50 μs.
4. Input clock in static mode
5. Time from the first clock edge to valid output data
4/15
DocID034289 Rev 2
MP23DB01HP
Acoustic and electrical specifications
The values listed in the table below are specified for Vdd = 1.8 V, Clock = 768 kHz, no load,
T = 25 °C, unless otherwise noted.
Table 4. Low-power mode
Symbol
Idd
So
SNR
THD
AOP
PSR
Parameter
Current consumption
Sensitivity
Signal-to-noise ratio
Total harmonic distortion
Acoustic overload point
Power supply rejection
100 mVpp sine wave @ 217 Hz
94 dBSPL @ 1 kHz
94 dBSPL @ 1 kHz
A-weighted (20 Hz - 8 kHz)
94 dBSPL @1 kHz
-25
Test condition
Min.
Typ.
(1)
285
-24
64
0.2
120
-85
-23
Max.
Unit
μA
dBFS
dB(A)
%
dBSPL
dBFS
1. Typical specifications are not guaranteed.
The values listed in the table below are specified for Vdd = 1.8 V, Clock = 2.4MHz, no load,
T = 25 °C, unless otherwise noted
Table 5. Performance mode
Symbol
Idd
So
SNR
Parameter
Current consumption
Sensitivity
Signal-to-noise ratio
94 dBSPL @ 1 kHz
A-weighted (20 Hz - 20 kHz)
Total harmonic distortion
Acoustic overload point
Power supply rejection
100mVpp sinewave @ 217 Hz
Test condition
2.4 MHz
3.072 MHz
94 dBSPL @1 kHz
2.4 MHz
3.072 MHz
94 dBSPL @1 kHz
110 dBSPL @1 kHz
-42
Min.
Typ.
(1)
800
880
-41
65
65.5
0.2
0.5
135
-95
dB(A)
-40
Max.
Unit
μA
dBFS
THD
AOP
PSR
%
dBSPL
dBFS
1. Typical specifications are not guaranteed.
DocID034289 Rev 2
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