TECHNICAL SPECIFICATION
Analog MEMS Microphone
Datasheet
AOS3729A-T42-NXC
SANICO ELECTRONICS
Specification – Analog MEMS Microphone Datasheet
AOS3729A-T42-NXC
CONTENTS
1.
General Description ........................................................................................................................................................ 3
2.
Features ................................................................................................................................................................................. 3
3.
Application ........................................................................................................................................................................... 3
4.
Absolute Maximum Ratings ....................................................................................................................................... 4
5.
Electrical Characteristics............................................................................................................................................. 4
6.
Typical Frequency Response Curve...................................................................................................................... 5
7.
Mechanical Dimensions & Pin out .......................................................................................................................... 6
8.
Recommended Customer PCB Pattern................................................................................................................ 7
9.
Recommended Customer Stencil Pattern .......................................................................................................... 7
10.
Standard Test Circuit ................................................................................................................................................. 8
11.
Typical Measurement System ............................................................................................................................... 8
13.
Typical Reliability Test Items ............................................................................................................................. 10
14.
Cautions for using MEMS microphone ........................................................................................................ 11
15.
Packing Information ................................................................................................................................................ 12
16.
Specification Revision History .......................................................................................................................... 13
SANICO ELECTRONICS
2 / 13
Rev 0.6
Specification – Analog MEMS Microphone Datasheet
AOS3729A-T42-NXC
Analog MEMS Microphone Datasheet
AOS3729A-T42-NXC
1. General Description
AOS3729A-T42-NXC is a front type MEMS (micro-electromechanical systems) microphone with
analog signal output. It provides high sensitivity, low power consumption and high SNR. Output
impedance of this microphone is very low, it has much small affection from RF noise.
As MEMS type transducer and optimized ASIC are used inside this microphone, it has no thermal
deterioration and superior thermal shock resistance. So, users can make full-automated assembly
process with this microphone. This microphone has also very small size in mechanical dimension, it is
very suitable for portable devices with audio input function.
2. Features
CMOS MEMS microphone with analog output
High sensitivity
High SNR
Low power consumption
Low output impedance
High thermal shock resistance
Small sized mechanical dimension
High reliability
Free from Hazardous Substances
Top Type Package
3. Application
Mobile phones and smart phones
Notebook and Tablet
Ear microphone and Bluetooth head sets
Digital still camera and video camera
Car navigation and black box
Gaming device and other voice input devices
SANICO ELECTRONICS
3 / 13
Rev 0.6
Specification – Analog MEMS Microphone Datasheet
AOS3729A-T42-NXC
4. Absolute Maximum Ratings
Parameter
Absolute Maximum Rating
Units
VDD to Ground
+4
V
Storage temperature in package (tape and Reel)
-10 to 50
℃
Operating Temperature
-40 to 85
℃
Storage Temperature
-40 to 100
℃
Absolute maximum continuous ratings are the values beyond which damage the device may occur. Exposure to
those conditions or conditions beyond those indicated may adversely affect device reliability. Functional operation
under these conditions is not implied.
5. Electrical Characteristics
TEST CONDITIONS : 23±2℃, 65±20% R.H., Typical specifications are measured at VDD = 1.8V
Parameter
Symbol
Condition
Min
Typ.
Max
Unit
S
94㏈SPL@1㎑
-45
-42
-39
㏈V/㎩
ZOUT
F=1㎑
300
Ω
IDSS
VDD =1.8V
110
㎂
Signal Noise Ratio
S/N
94㏈SPL@1㎑, A-weighted
Operating Voltage
VDD
Total Harmonic Distortion
THD
Acoustic Overload Point
AOP
Power Supply Rejection Ratio
PSRR
Sensitivity1
Output Impedance
Current
Consumption1
Power Supply Rejection
PSR
40
59
1.5
94㏈SPL@1㎑, S=Typ, Rload >3㏀
10% THD @1㎑,, S = Typ, VDD = 3.6V,
Rload > 3 kΩ
200mVpp sinewave @ 1kHz VDD =1.8V
100mVppsquarewave@217Hz
VDD =1.8V, A-weighted
DC Output
VDD =1.5V
Directivity
tested
70
㏈
1.8
3.6
V
0.15
0.2
%
125
㏈SPL
60
dB
-90
dBV(A)
0.4
V
Omni-directional
1100%
SANICO ELECTRONICS
4 / 13
Rev 0.6
Specification – Analog MEMS Microphone Datasheet
AOS3729A-T42-NXC
6. Typical Frequency Response Curve
TEST CONDITION : 23±2℃, 65±20% R.H., Typical specifications are measured at VDD = 1.8V
Speaker : 1㎩ (94㏈SPL@1㎑) at 50㎝ distance from a loud-speaker
SANICO ELECTRONICS
5 / 13
Rev 0.6
Specification – Analog MEMS Microphone Datasheet
AOS3729A-T42-NXC
7. Mechanical Dimensions & Pin out
0.625
"W"
(R0.279)
1.475
0.650
"H"
4
1
1
1.184
1.700
Pick Area
"L"
"AP"
(3.324)
2.460
3
2
(R0.254)
(0.300)
(2.534)
Top View
Ø 0.800
Side View
Bottom View
Item
Dimension
Tolerance
Length(L)
3.76
±0.10㎜
Width(W)
2.95
±0.10㎜
Height(H)
1.10
±0.10㎜
Acoustic Port
Ø 0.50
±0.05㎜
Note : Pick Area only extends to 0.25㎜ of any edge or hole unless otherwise specified.
Dimension are in millimeters unless otherwise specified. Tolerance : ±0.15㎜,
Pin 1
Pin 2
Pin 3
Pin 4
VDD
Ground
Ground
Output
SANICO ELECTRONICS
6 / 13
Rev 0.6
Specification – Analog MEMS Microphone Datasheet
AOS3729A-T42-NXC
8. Recommended Customer PCB Pattern
1.700
1
4
2.460
Ø 0.800
3
2
9. Recommended Customer Stencil Pattern
1.700
2.460
Ø 0.800
Note : Dimension are in millimeters unless otherwise specified
SANICO ELECTRONICS
7 / 13
Rev 0.6
Specification – Analog MEMS Microphone Datasheet
AOS3729A-T42-NXC
10. Standard Test Circuit
VDD
CP
C1
1㎌
Output
AMP
MEMS
Transducer
ASIC
C2
Ground
Shield.Can
11. Typical Measurement System
SANICO ELECTRONICS
8 / 13
Rev 0.6
Specification – Analog MEMS Microphone Datasheet
AOS3729A-T42-NXC
12. Reflow Profile
Profile Feature
Lead(Pb) Free Solder
Temperature min.(TSMIN)
150℃
Temperature max.(TSMAX)
200℃
Time (tS)
60-120 Seconds
Temperature (TL)
217℃
Time (tL)
60-150 Seconds
Temperature (TP)
260℃
Time within 5℃of actual peak temperature (tP)
30 Seconds Max.
Ramp up
Average ramp up rate TSMAX to TP
3℃ / Second Max.
Ramp down
Average ramp down rate TP to TSMAX
6℃ / Second Max.
Preheat
Liquidous
Peak
Time 25℃ to Peak temperature
8 Minutes Max.
Notes: Based on JEDC J-STD-020D
SANICO ELECTRONICS
9 / 13
Rev 0.6
Specification – Analog MEMS Microphone Datasheet
AOS3729A-T42-NXC
13. Typical Reliability Test Items
No
Tested Item
Condition
standard
1
Humidity
+85±2℃, 85±2%RH 120h
JESD 22-A 101AB
2
Low
Temperature
-40±2℃, 200h
IEC 68-2-2 Test
Aa
3
High
Temperature
+105±2℃, 200h
IEC 68-2-2 Test
Ba
4
Thermal Shock
(-40±2℃→+85℃±2℃)×96Cycle, 30m
IEC 60068-2-4
5
Drop
Drop 12 times onto thick steel plate
from height 1.52m (installed in JIG)
IEC 60068-2-32
6
Vibration
Frequency sweep: 10~55㎐/min 2h
Direction : X, Y, Z (1.52㎜ distance for each direction)
MIL 883E,
Method 2007.2.A
7
ESD(Contact)
5 discharges at ±8㎸ direct contact to lid when unit is
grounded.
5 discharges at ±2㎸ direct contact to I/O pins.
IEC 61000-4-2
8
Tumbling
Steel chamber length = 1m, 6.5rpm, 300 times.
SANICO
specification
9
Reflow
Peak = 260℃ / 30sec, Repeat 3 times
IPC-JEDEC JSTD-020D.1
Note: After reliability test, the samples shall be stored under climatic conditions such as leaving in the air
with room temperature. Unless otherwise noted, the recovery period shall be 2 hours at least before
performance testing. After test condition is performed, the sensitivity of the microphone shall not be
varied more than 3㏈V/㎩ from its initial value.
SANICO ELECTRONICS
10 / 13
Rev 0.6
Specification – Analog MEMS Microphone Datasheet
AOS3729A-T42-NXC
14. Cautions for using MEMS microphone
In order to minimize device damage
+ Do not board wash or clean after the reflow process.
+ Do not brush board with or without solvents after the reflow process
+ Do not directly expose to ultrasonic processing, welding, or cleaning.
+ Do not insert any object in port hole of device at any time.
+ Do not apply over 30 psi of air pressure into the port hole.
+ Do not pull a vacuum over port hole of the microphone.
+ Do not apply a vacuum when repacking into sealed bags at a rate faster than 0.5 atm/sec.
+ Locate the microphone on finally reflowed PCB.
(If there are two reflow-processes, microphone should be placed in secondly reflowed PCB not on
firstly reflowed PCB)
+ MSL(moisture sensitivity level) Class 1.
Re-work Method
+250~270℃, Max 30sec
+Wind Speed: 15L/m
+Do not put a heat-gun over the acoustic hole of MEMS Microphone.
+There must be no other parts on back side
+MEMS Mic. should be detached in 3 seconds. (Peak Temperature 330℃)
+After detach MEMS Mic. from PCB, solder ball and residue must be removed
+Don’t recommend re-work
SANICO ELECTRONICS
11 / 13
Rev 0.6
Specification – Analog MEMS Microphone Datasheet
AOS3729A-T42-NXC
15. Packing Information
Recommended Nozzle Model : CN065
Interner Diameter : Φ 0.65mm
Externer Diameter : Φ1.2mm
Tip(Coating)
25.5
Model
Reel Diameter
Quantity Per Reel
AOS3729A-T42-NXC
13”
5,700
Pin 1
Note : Dimension are in millimeters unless otherwise specified.
Vacuum pickup only in the pick area indicated in Mechanical Specifications.
Label applied directly to reel and external package.
Shelf life : Twelve(12)months when devices are to be stored in factory supplied unopened.
340
INNER BOX
337
5,700PCS X 2BAG = 11,400PCS
CARTON SIZE : 330(W) X 350(L) X 355(H)
QUANTITY : 68,400 PCS
SANICO ELECTRONICS
12 / 13
Rev 0.6
Specification – Analog MEMS Microphone Datasheet
AOS3729A-T42-NXC
16. Specification Revision History
Revision
Remarks
Date
Rev 0.1
Specification release
Feb 06, 2017
Rev 0.2
Packing Information was updated in page 11.
Electrical Characteristics was updated in page 4.
Apr 07, 2017
Rev 0.3
Typical Frequency Response Curve was upgrade page 5.
Apr 07, 2017
Rev 0.4
Mechanical dimension was updated in page 6.
Recommended Customer Stencil Pattern was updated in page 7
Standard Circuit was updated in page 8.
Packing Information was updated in page 12.
Apr 13, 2018
Rev 0.5
Electrical Characteristics was updated in page 4.
Apr 24, 2018
Rev 0.6
Electrical Characteristics was updated in page 4.
Cautions for using MEMS microphone was updated in page 11.
Packing Information was updated in page 12.
May 8, 2018
SANICO Electronics Co., Ltd.
Suntech City1-506, 474, Dunchon-daero,,
Jungwon-gu, Seongnam-si, Gyeonggi-do, KOREA
Data subject to be changed without notice
Copyright ⓒSANICO ELECTRONICS, All rights reserved
SANICO ELECTRONICS
13 / 13
Rev 0.6