Data Sheet
V 1.1 / Feb. 2015
MSM261S4030H0
I2S digital output MEMS microphone with Multi‐modes
MSM261S4030H0
I2S digital output MEMS microphone
GENERAL DESCRIPTION
APPLICATIONS
Mobile Phone
Laptop
Tablet computer
Bluetooth headset
Earphone
Wearable intelligent equipment
PRODUCT VIEW
MSM26S4030H0 is an omnidirectional,
bottom‐ported, I2S digital output MEMS
microphone. It has high performance and
reliability.
MSM26S4030H0 is available in a 4 mm ×
3 mm × 1.0 mm metal cap LGA package. It is
SMT compatible with no sensitivity
degradation.
FEATURES
Cost effective
Low Power mode
Digital I2S output
Compatible with Sn/Pb and Pb‐free
solder processes
RoHS/Halogen free compliant
Sensitivity Matching within +/‐1dB
© 2011‐2015 MEMSensing Microsystems Co. Ltd, —DOC NO:DS‐035, P ENG, All rights reserved
2
MSM261S4030H0
I2S digital output MEMS microphone
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply Voltage
Sound Pressure Level
Mechanical Shock
Temperature Range
Electrostatic discharge protection
SPECIFICATIONS
Maximum value
−0.3 to 4.0
140
10,000
−40 to 100
2 (HBM)
Unit
V
dB SPL
g
°C
kV
All data taken at 25°C, Relative Humidity 45±5% L/R pin grounded unless otherwise specified
Vdd=1.8V, clock frequency=3.072MHz
Directivity
Sensitivity
Operation voltage
Limits
Nom.
Omni directional
‐26
3.6
Min.
‐27
1.6
Max.
‐25
Freq. range
Refer to the frequency response
Sensitivity loss across
supply voltage
Signal to noise ratio
THD
PSR
Current consumption
Clock frequency
Operating temperature
Storage temperature
No change across the voltage range
‐
‐
‐
‐
‐
1.0
150
‐40
‐40
57
‐
‐
‐72
750
400
3
‐
‐
‐
‐
1%
10%
1000
‐
4.0
600
100
100
unit
condition
dB
V
Hz
dB
dB
dBFS @1kHz 1Pa
20 kHz bandwidth,
A‐weighted
100dB SPL @1kHz
120dB SPL @1kHz
dBFS(A)
μA
μA
MHz
KHz
°C
°C
Normal mode
Low power mode
Normal mode
Low power mode
© 2011‐2015 MEMSensing Microsystems Co. Ltd, —DOC NO:DS‐035, P ENG, All rights reserved
3
MSM261S4030H0
I2S digital output MEMS microphone
TYPICAL FREQUENCY RESPONSE
Frequency Response @94dB SPL
200
500
1K
2K
5K
Frequence (Hz)
10K
20
10
0
‐10
‐20
100
)
a
P
/
S
F
B
d
(
y
t
i
v
i
t
i
s
n
e
S
LOGIC TABLE
Digital
Input
SD
Digital
Output
Parameter
Low Voltage Input(L/R,
WS, SCK)
High Voltage
Input(L/R, WS, SCK)
Voltage Output Low
Voltage Output Low
Voltage Output High
Voltage Output High
Voltage Output Low
Voltage Output Low
Voltage Output High
Voltage Output High
Symbol
Min
Max
Unit
VIL
0
0.25 × VDD
VIH
0.7 × VDD
VDD
VOL
VOL
VOH
VOH
VOL
VOL
VOH
VOH
0.7 × VDD
0.9 × VDD
0.7 × VDD
0.9 × VDD
0.1 × VDD
0.3 × VDD
0.1 × VDD
0.3 × VDD
V
V
V
V
V
V
V
V
V
V
© 2011‐2015 MEMSensing Microsystems Co. Ltd, —DOC NO:DS‐035, P ENG, All rights reserved
4
MSM261S4030H0
I2S digital output MEMS microphone
TIMING DIAGRAM
Parameter
Description
Min.
tSCH
tSCL
tSCP
fSCK
tWSS
tWSH
fWS
SCK High
SCK Low
SCK Period
SCK Frequency
WS Setup
WS Hold
WS Frequency
—
—
—
—
—
—
—
Norm.
50
50
325
3.072
0
20
7.8
Max.
—
—
—
—
—
—
—
Unit
ns
ns
ns
MHz
ns
ns
kHz
© 2011‐2015 MEMSensing Microsystems Co. Ltd, —DOC NO:DS‐035, P ENG, All rights reserved
5
MSM261S4030H0
I2S digital output MEMS microphone
SMT Parameters:
1. Recommend PCB land pattern layout and stencil pattern:(unit: mm)
© 2011‐2015 MEMSensing Microsystems Co. Ltd, —DOC NO:DS‐035, P ENG, All rights reserved
6
MSM261S4030H0
I2S digital output MEMS microphone
2. Recommend reflow profile:
Description
Average ramp rate
Preheat
Minimum temperature
Maximum temperature
Time(T SMIN to TSMAX)
Ramp‐up rate
Time maintained above liquidous temperature
Liquidous temperature
Peak temperature
Time within 5°C of actual peak temperature
Ramp‐down rate
Time 25 °C (t25 °C) to peak temperature
Parameter
TL to TP
TSMIN
TSMAX
tS
TSMAX to TL
tL
TL
TP
tP
TP to T smax
t
3. note:
Pb free
3 °C/sec max
150 °C
200 °C
60 sec to 120 sec
1.25 °C/sec
60 sec to 150 sec
217 °C
260 °C
20 sec to 40 sec
6 °C/sec max
8 minutes max
When washing the PCB, ensure that water does not make contact with the microphone port.
Do not use blow‐off procedures or ultrasonic cleaning.
© 2011‐2015 MEMSensing Microsystems Co. Ltd, —DOC NO:DS‐035, P ENG, All rights reserved
7
MSM261S4030H0
I2S digital output MEMS microphone
OUTLINE DIMENSIONS AND PIN DEFINITION:
Port
1
4 5
3
2
6
7
1
8
TOP VIEW
SIDE VIEW
BOTTOM VIEW
1
2
3
4
5
6
7
8
GND
N/C
WS
Ground
—
Input
CHIPEN Input
L/R
Input
SCK
Input
SD
Output
Power
VDD
Connect to ground on the PCB.
Do not connect
Serial Data‐Word Select for I²S Interface.
Microphone Enable. When set low (ground), the microphone is disabled and put in
power‐down mode. When set high (VDD), the microphone is enabled.
Left/Right Channel Select. When set low, the microphone outputs its signal in the left channel
of the I²S frame; when set high, the microphone outputs its signal in the right channel.
Serial Data Clock for I²S Interface.
Serial Data Output for I²S Interface. This pin tristates when not actively driving the appropriate
output channel. The SD trace should have a 100 kΩ pull‐down resistor to discharge the line
during the time that all microphones on the bus have tristated their outputs.
1.8 to 3.3 V. This pin should be decoupled to Pin 6 with a 0.1 μF capacitor.
Item
Length (L)
Width (W)
Height (H)
Acoustic Port (AP)
Dimension
4.0
3.0
1.05
Ø0.65
Tolerance
±0.10
±0.10
±0.10
±0.10
Dimensions are in millimeters
Tolerance is ±0.1mm unless otherwise specified.
© 2011‐2015 MEMSensing Microsystems Co. Ltd, —DOC NO:DS‐035, P ENG, All rights reserved
8