IM73D122 [INFINEON]

Ultra-low noise digital XENSIVTM MEMS microphone IM73D122 is designed for applications which require a very high SNR (low self-noise) and a high sensitivity. The flat frequency response (20Hz low-frequency roll-off) and tight manufacturing tolerance improve performance of multi-microphone (array) applications. This microphone is based on Infineon’s new Sealed Dual Membrane MEMS technology which delivers high ingress protection (IP57) at a microphone level.;
IM73D122
型号: IM73D122
厂家: Infineon    Infineon
描述:

Ultra-low noise digital XENSIVTM MEMS microphone IM73D122 is designed for applications which require a very high SNR (low self-noise) and a high sensitivity. The flat frequency response (20Hz low-frequency roll-off) and tight manufacturing tolerance improve performance of multi-microphone (array) applications. This microphone is based on Infineon’s new Sealed Dual Membrane MEMS technology which delivers high ingress protection (IP57) at a microphone level.

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IM73D122V01  
Ultra-low noise high sensitivity digital XENSIVTM MEMS microphone  
Description  
The IM73D122V01 is an ultra-high performance digital PDM MEMS microphone designed for applications which  
require a very high SNR (low self-noise) and high sensitivity and which is also IP57 robust to dust and water.  
Best-in-class signal-to-noise ratio (SNR) of 73dB(A) enables far field and low volume audio pick-up. The flat  
frequency response (20Hz low-frequency roll-off) and tight manufacturing tolerance improve performance of  
multi-microphone (array) applications.  
The digital microphone ASIC contains an extremely low-noise preamplifier and a high-performance sigma-delta  
ADC. Different power modes can be selected in order to suit specific clock frequency and current consumption  
requirements.  
Each IM73D122V01 microphone is calibrated with an advanced Infineon calibration algorithm, resulting in low  
sensitivity tolerances ( 1dB).  
Features  
Ultra high signal to noise ratio of 73dB(A) SNR  
Component level IP57 water and dust resistant  
Dynamic range of 101dB  
Acoustic overload point at 122dBSPL  
Digital PDM output  
Flat frequency response with a low frequency roll-  
off at 20Hz  
Package dimensions: 4mm x 3mm x 1.2mm  
Omnidirectional pickup pattern  
Power optimized modes determined by PDM  
clock frequency  
Potential applications  
High quality audio capturing  
Devices with Voice User Interface (VUI)  
-
-
-
Laptops and tablets  
Conference systems  
Cameras and camcorders  
-
-
-
Smart speakers  
Home automation  
IOT devices  
Active Noise Cancellation (ANC) headphones and  
earphones  
Smartphones and mobile devices  
Industrial or home monitoring with audio pattern  
detection  
Ordering information  
Table 1  
Ordering information  
Product name  
Package  
Marking  
Ordering code  
IM73D122V01  
PG-LLGA-5-3  
I73D19  
SP005675385  
Datasheet  
www.infineon.com  
Please read the sections "Important notice" and "Warnings" at the end of this document  
1.00  
2022-08-12  
IM73D122V01  
Ultra-low noise high sensitivity digital XENSIVTM MEMS microphone  
Product validation  
Product validation  
Technology qualified for industrial applications.  
Ready for validation in industrial applications according to the relevant tests of IEC 60747 and 60749 or  
alternatively JEDEC47/20/22.  
Block diagram  
Figure 1  
Block diagram  
Environmental robustness  
Infineon’s latest Sealed Dual Membrane MEMS technology delivers high ingress protection (IP57) at a  
microphone level. The sealed MEMS design prevents water or dust from entering between membrane  
and backplate, preventing mechanical blockage or electric leakage issues commonly observed in MEMS  
microphones. Microphones built with the Sealed Dual Membrane technology can be used to create IP68  
devices, requiring only minimal mesh protection.  
Table 2  
Environmental robustness  
Test Standard  
Test Condition  
IP5x dust resistance1)  
Arizona dust A4 coarse, vertical orientation , sound hole upwards, 10  
cycles (15 minutes sedimentation, 6 sec blowing)  
IPx7 water immersion2)  
Temporary immersion of 1 meters for 30 minutes. Microphone tested  
2 hours afer removal  
1
The number "5" stands for the dust ingress rating or the capacity to withstand the effects of fine, abrasive dust particles.  
The "7" specifies the higher water immersion rating.  
2
Datasheet  
2
1.00  
2022-08-12  
IM73D122V01  
Ultra-low noise high sensitivity digital XENSIVTM MEMS microphone  
Table of contents  
Table of contents  
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Potential applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1  
Product validation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
Environmental robustness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2  
Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3  
1
2
Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
Acoustic characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
3
Electrical characteristics and parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7  
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7  
Electrical parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
Audio DC offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
Stereo PDM configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
3.1  
3.2  
3.3  
3.4  
3.5  
4
5
6
7
8
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
Footprint and stencil recommendation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12  
Packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  
Reflow soldering and board assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
Reliability specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16  
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17  
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17  
Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18  
Datasheet  
3
1.00  
2022-08-12  
IM73D122V01  
Ultra-low noise high sensitivity digital XENSIVTM MEMS microphone  
Typical performance characteristics  
1
Typical performance characteristics  
Test conditions: VDD = 1.8V, fCLK = 3.072MHz, unless otherwise specified.  
30  
12  
25  
20  
15  
10  
5
9
6
3
0
-3  
-6  
-9  
-12  
0
-5  
-10  
10  
100  
1000  
10000  
0
20  
40  
60  
80  
Frequency [Hz]  
Frequency [kHz]  
Figure 2  
Typical amplitude response  
Figure 3  
Typical free field ultrasonic  
response  
90  
75  
60  
45  
30  
15  
0
10000  
1000  
100  
10  
-15  
-30  
1
10  
100  
1000  
10000  
10  
100  
1000  
10000  
Frequency [Hz]  
Frequency [Hz]  
Figure 4  
Typical phase response  
Figure 5  
Typical group delay  
10.00  
1.00  
0.10  
0.01  
122dB SPL  
10  
1
120dB SPL  
110dB SPL  
0.1  
90  
95  
100  
105  
110  
115  
120  
125  
100  
1000  
10000  
Input Sound Pressure Level [dB]  
Frequency [Hz]  
Figure 6  
Typical THD vs SPL  
Figure 7  
Typical THD vs frequency  
Datasheet  
4
1.00  
2022-08-12  
IM73D122V01  
Ultra-low noise high sensitivity digital XENSIVTM MEMS microphone  
Typical performance characteristics  
1200  
1000  
800  
600  
400  
200  
0
-80  
-90  
f
clock = 3.072MHz  
-100  
-110  
-120  
-130  
-140  
-150  
-160  
fclock = 4.800MHz  
f
clock = 2.400MHz  
clock = 1.536MHz  
f
fclock = 768kHz  
1.60  
2.10  
2.60  
3.10  
3.60  
10  
100  
1000  
10000  
V
DD [V]  
Frequency [Hz]  
Figure 8  
Typical IDD vs VDD  
Figure 9  
Typical noise floor  
(unweighted)  
Datasheet  
5
1.00  
2022-08-12  
IM73D122V01  
Ultra-low noise high sensitivity digital XENSIVTM MEMS microphone  
Acoustic characteristics  
2
Acoustic characteristics  
Test conditions (unless otherwise specified in the table): VDD = 1.8V, fCLK = 3.072MHz, TA = 25°C, 55% R.H., audio  
bandwidth 20Hz to 20kHz, select pin grounded, no load on DATA, Tedge = 9ns  
Table 3  
acoustic specifications  
Symbol  
Parameter  
Values  
Typ.  
Unit Note or Test Condition  
Min.  
Max.  
Sensitivity  
S
1kHz, 94dBSPL, all  
dBFS  
-27  
-26  
-25  
operating modes  
Low Frequency Roll-off  
LFRO  
20  
19  
37  
Hz -3dB relative to 1kHz  
kHz +3dB relative to 1kHz  
kHz  
High Frequency Flatness3)  
Resonance Frequency Peak3)  
Signal to Noise fclock = 768kHz  
Ratio  
SNR  
20Hz to 8kHz bandwidth,  
A-Weighted  
69  
fclock = 1.536MHz  
fclock = 2.4MHz  
71  
72  
73  
72  
0.5  
20Hz to 20kHz bandwidth,  
dB(A)  
A-Weighted  
fclock = 3.072MHz  
fclock = 4.8MHz3)  
Total  
Harmonic  
Distortion  
94dBSPL  
THD  
AOP  
Measuring 2nd to 5th  
harmonics; 1kHz. all  
operating modes  
%
120dBSPL  
1.0  
Acoustic  
Overload Point  
10% THD  
Measuring 2nd to 5th  
dBSPL harmonics; 1kHz. all  
operating modes  
122  
Group Delay  
250Hz  
600Hz  
1kHz  
4kHz  
75Hz  
1kHz  
4kHz  
60  
12  
7
µs  
°
3.5  
20  
0.5  
-2  
Phase  
Response  
Directivity  
Polarity  
Omnidirectional  
Positive pressure increases density of 1's,  
negative pressure decreases density of 1's in  
data output  
3
Parameter not subject to productive test. Verified by laboratory characterization / design.  
Datasheet  
6
1.00  
2022-08-12  
IM73D122V01  
Ultra-low noise high sensitivity digital XENSIVTM MEMS microphone  
Electrical characteristics and parameters  
3
Electrical characteristics and parameters  
3.1  
Absolute maximum ratings  
Stresses at or above the listed maximum ratings may affect device reliability or cause permanent device  
damage. Functional device operation at these conditions is not guaranteed.  
Table 4  
Absolute maximum ratings  
Parameter  
Symbol  
Min.  
Values  
Unit  
Note / Test Condition  
Max.  
3.6  
Voltage on any Pin  
Vmax  
V
Storage Temperature  
Ambient Temperature  
TS  
TA  
-40  
-40  
125  
85  
°C  
°C  
3.2  
Electrical parameters  
Table 5  
Electrical parameters and digital interface input  
Parameter  
Symbol  
Values  
Typ.  
1.8  
Unit Note / Test Condition  
Min.  
Max.  
3.6  
4)  
Supply Voltage  
VDD  
1.62  
V
5)  
Clock  
Frequency  
Range  
Standby Mode  
fclock  
350  
850  
kHz  
Low Power  
Mode  
450  
768  
kHz  
Normal Mode  
1.2  
2.0  
2.9  
1.536  
2.4  
1.65  
2.6  
MHz  
MHz  
MHz  
High  
Performance  
Mode  
3.072  
3.3  
Ultrasonic  
Mode  
4.56  
4.8  
5.04  
MHz  
VDD Ramp-up Time  
Input Logic Low Level  
Input Logic High Level  
Clock Rise/Fall Time  
Clock Duty Cycle  
50  
0.35xVDD  
VDD+0.3  
13  
ms  
V
Time until VDD ≥ VDD_min  
VIL  
-0.3  
VIH  
0.65xVDD  
V
ns  
%
%
pF  
10% to 90%  
fclock≤ 3MHz  
fclock> 3MHz  
40  
48  
60  
52  
Output Load Capacitance on  
DATA  
Cload  
200  
4
A 1μF bypass capacitor shall be placed close to the microphone VDD pad to ensure best SNR performance.  
5
Data pad is high impedance in standby mode.  
Datasheet  
7
1.00  
2022-08-12  
IM73D122V01  
Ultra-low noise high sensitivity digital XENSIVTM MEMS microphone  
Electrical characteristics and parameters  
3.3  
Electrical characteristics  
Test conditions (unless otherwise specified in the table): VDD = 1.8V, TA = 25°C, 55% R.H.  
Table 6  
General electrical characteristics  
Parameter  
Symbol  
Min.  
Values  
Typ.  
Unit Note / Test Condition  
Max.  
1
Current  
Consumption  
Clock Off Mode  
Iclock_off  
Istandby  
IDD  
μA  
CLOCK pulled low  
No load on DATA  
<5pF load on DATA  
Standby Mode  
fclock = 768kHz  
fclock = 1.536MHz  
fclock = 2.4MHz  
fclock = 3.072MHz  
fclock = 4.8MHz  
25  
50  
280  
690  
750  
980  
900  
310  
770  
945  
1120  
1000  
20  
Short Circuit Current  
1
mA  
Grounded DATA pin  
Power Supply Rejection  
PSR1k_NM  
-80  
-86  
dBFS 100mVpp sine wave on  
VDD swept from 200Hz to  
20kHz.  
PSR217_NM  
dBFS(A) 100mVrms, 217Hz square  
wave on VDD. A-weighted.  
Startup Time 0.5dB  
sensitivity  
20  
50  
20  
50  
ms  
Time to start up in any  
operating modes afer  
VDD_min and CLOCK have  
been applied.6)  
accuracy  
0.2dB  
sensitivity  
accuracy  
Mode Switch  
Time  
0.5dB  
sensitivity  
accuracy  
ms  
Time to switch between  
operating modes. VDD  
remains on during the  
mode switch.6)  
0.2dB  
sensitivity  
accuracy  
Output Logic Low Level  
Output Logic High Level  
Delay Time for DATA Driven  
VOL  
VOH  
tDD  
0.3xVDD  
80  
V
0.7xVDD  
40  
ns  
Delay time from CLOCK  
edge (0.5xVDD) to DATA  
driven.  
Delay Time for DATA High-Z7)  
tHZ  
5
30  
ns  
Delay time from CLOCK  
edge (0.5xVDD) to DATA  
high impedance state  
(table continues...)  
6
Verified at typical PDM clock frequencies for each power mode.  
thold is dependent on Cload  
7
Datasheet  
8
1.00  
2022-08-12  
IM73D122V01  
Ultra-low noise high sensitivity digital XENSIVTM MEMS microphone  
Electrical characteristics and parameters  
Table 6  
(continued) General electrical characteristics  
Parameter  
Symbol  
Values  
Typ.  
Unit Note / Test Condition  
Min.  
Max.  
Delay Time for DATA Valid8)  
Power-on behaviour  
tDV  
100  
ns  
Delay time from CLOCK  
edge (0.5xVDD) to DATA  
valid (<0.3xVDD or  
>0.7xVDD  
)
Idle tone is output over PDM within 3ms of applying VDD and fclock, remains  
until a valid microphone signal is available. Idle tone consists of alternating  
1s and 0s, representing a zero input signal.  
Figure 10  
Timing diagram  
3.4  
Audio DC offset  
The DC output level encoded in the DC bit stream is determined by the L/R state on startup. In each case the DC  
output level is stable over time and does not vary with input signal level.  
Table 7  
DC output level using L/R pin  
LR state  
DC output level (typical)  
Unit  
dBFS  
dBFS  
LR = GND  
LR = VDD  
-80  
-40  
8
Load on data: Cload=100pF, Rload=100kΩ  
Datasheet  
9
1.00  
2022-08-12  
IM73D122V01  
Ultra-low noise high sensitivity digital XENSIVTM MEMS microphone  
Electrical characteristics and parameters  
3.5  
Stereo PDM configuration  
The IM73D122V01 is designed to function in circuits with one or two microphones on the PDM bus. When  
two microphones are connected, data is transmitted alternately according to the L/R pin status of each  
microphone. When two microphones are connected to a shared PDM bus, the power modes of both  
microphones will be the same as both are controlled by the same PDM clock. The performance is unchanged  
relative to a single microphone per bus configuration.  
Table 8  
PDM channel configuration using L/R pin.  
Channel  
DATA1  
Data driven  
Data high-Z  
L/R connection  
Falling clock edge  
Rising clock edge  
Rising clock edge  
Falling clock edge  
GND  
VDD  
DATA2  
Figure 11  
Typical stereo mode configuration  
Note:  
For best performance it is strongly recommended to place a 100nF (CVDD_typical) capacitor between VDD  
and ground. The capacitor should be placed as close to VDD as possible. A termination resistor (RTERM  
of about 100Ω may be added to reduce the ringing and overshoot on the output signal.  
)
Datasheet  
10  
1.00  
2022-08-12  
IM73D122V01  
Ultra-low noise high sensitivity digital XENSIVTM MEMS microphone  
Package information  
4
Package information  
Figure 12  
Table 9  
IM73D122V01 package drawing  
IM73D122V01 pin configuration  
Pin Number  
Name  
DATA  
VDD  
Description  
1
2
3
4
5
PDM data output  
Power supply  
CLOCK  
LR  
PDM clock input  
PDM lefꢀriꢁgt select  
Ground  
GND  
Datasheet  
11  
1.00  
2022-08-12  
IM73D122V01  
Ultra-low noise high sensitivity digital XENSIVTM MEMS microphone  
Footprint and stencil recommendation  
5
Footprint and stencil recommendation  
The acoustic port hole diameter in the PCB should be larger than the acoustic port hole diameter of the MEMS  
microphone to ensure optimal performance. A PCB sound port size of radius 0.4 mm (diameter 0.8mm) is  
recommended.  
The board pad and stencil aperture recommendations shown in Figure 13 are based on Solder Mask Defined  
(SMD) pads. The specific design rules of the board manufacturer should be considered for individual design  
optimizations or adaptations.  
Figure 13  
IM73D122V01 footprint and stencil recommendation  
Note:  
Dimensions are in millimeters unless otherwise specified  
Datasheet  
12  
1.00  
2022-08-12  
IM73D122V01  
Ultra-low noise high sensitivity digital XENSIVTM MEMS microphone  
Packing information  
6
Packing information  
For shipping and assembly the Infineon microphones are packed in product specific tape-and-reel carriers. A  
detailed drawing of the carrier can be seen in Figure 14.  
Figure 14  
IM73D122V01 tape and reel packing information  
Datasheet  
13  
1.00  
2022-08-12  
IM73D122V01  
Ultra-low noise high sensitivity digital XENSIVTM MEMS microphone  
Reflow soldering and board assembly  
7
Reflow soldering and board assembly  
Infineon MEMS microphones are qualified in accordance with the IPC/JEDEC J-STD-020D-01. The moisture  
sensitivity level of MEMS microphones is rated as MSL1. For PCB assembly of the MEMS microphone the widely  
used reflow soldering using a forced convection oven is recommended.  
The soldering profile should be in accordance with the recommendations of the solder paste manufacturer  
to reach an optimal solder joint quality. The reflow profile shown in Figure 15 is recommended for board  
manufacturing with Infineon MEMS microphones.  
Figure 15  
Table 10  
Recommended reflow profile  
Reflow profile limits  
Profile feature  
Temperature Min (Tsmin  
Pb-Free assembly  
150 °C  
Sn-Pb Eutectic assembly  
100 °C  
)
Temperature Max (Tsmax  
Time (Tsmin to Tsmax) (ts)  
Ramp-up rate (TL to TP)  
)
200 °C  
150 °C  
60-120 seconds  
3 °C/second max.  
217 °C  
60-120 seconds  
3 °C/second max.  
183 °C  
Liquidous temperature (TL)  
Time (tL) maintained above TL  
Peak Temperature (Tp)  
60-150 seconds  
260°C +0°C/-5°C  
60-150 seconds  
235°C +0°C/-5°C  
Time within 5°C of actual peak  
temperature (tp) 9)  
20-40 seconds  
10-30 seconds  
Ramp-down rate  
6 °C/second max.  
8 minutes max.  
6 °C/second max.  
6 minutes max.  
Time 25°C to peak temperature  
Note:  
For further information please consult the 'General recommendation for assembly of Infineon  
packages' document which is available on the Infineon Technologies web page  
9
Tolerance for peak profile temperature (Tp) is defined as a supplier minimum and a user maximum  
14  
Datasheet  
1.00  
2022-08-12  
IM73D122V01  
Ultra-low noise high sensitivity digital XENSIVTM MEMS microphone  
Reflow soldering and board assembly  
The MEMS microphones can be handled using industry standard pick and place equipment. Care should be  
taken to avoid damage to the microphone structure as follows:  
Do not pick the microphone with vacuum tools which make contact with the microphone acoustic port  
hole.  
The microphone acoustic port hole should not be exposed to vacuum, this can destroy or damage the  
MEMS.  
Do not blow air into the microphone acoustic port hole. If an air blow cleaning process is used, the port  
hole must be sealed to prevent particle contamination.  
It is recommended to perform the PCB assembly in a clean room environment in order to avoid  
microphone contamination.  
Air blow and ultrasonic cleaning procedures shall not be applied to MEMS Microphones. A no-clean paste  
is recommended for the assembly to avoid subsequent cleaning steps. The microphone MEMS can be  
severely damaged by cleaning substances.  
To prevent the blocking or partial blocking of the sound port during PCB assembly, it is recommended to  
cover the sound port with protective tape during PCB sawing or system assembly.  
Do not use excessive force to place the microphone on the PCB. The use of industry standard pick and  
place tools is recommended in order to limit the mechanical force exerted on the package.  
Datasheet  
15  
1.00  
2022-08-12  
IM73D122V01  
Ultra-low noise high sensitivity digital XENSIVTM MEMS microphone  
Reliability specifications  
8
Reliability specifications  
The microphone sensitivity afer stress must deviate by no more than 3dB from the initial value.  
Table 11  
Test  
Reliability specification  
Abbreviation Test Condition  
Standard  
Ta=-40°C, VDD=3.6V, 1000 hours JESD22-A108  
Ta=-40°C, 1000 hours JESD22-A119  
Low Temperature Operating Life  
Low Temperature Storage Life  
High Temperature Operation Life  
High Temperature Storage Life  
LTOL  
LTSL  
HTOL  
HTSL  
Ta=+125°C, VDD=3.6V, 1000 hours JESD22-A108  
JESD22-A103  
Ta=+125°C, 1000 hours  
Temperature Cycling  
Temperature Humidity Bias  
Vibration Test  
PC + TC  
PC + THB  
VVF  
Pre conditioning MSL-1  
JESD22-A113  
1000 cycles, -40°C to +125°C, 30 JESD22-A104  
minutes per cycle  
Pre conditioning MSL-1  
JESD22-A113  
Ta=+85°C, R.H = 85%, VDD=3.6V, JESD22-A101  
1000 hours  
20Hz to 2000Hz with a peak  
acceleration of 20g in X, Y, and  
Z for 4 minutes each, total 4  
-cycles  
IEC 60068-2-6  
Mechanical Shock  
Reflow Solder10)  
MS  
10000g/0.1msec direction x,y,z, IEC 60068-2-27  
5 shocks in each direction, 5  
shocks in total  
RS  
3 reflow cycles, peak  
temperature = +260°C  
IPC-JEDEC J-  
STD-020D-01  
Electrostatic Discharge -System  
Level Test  
ESD - SLT  
3 discharges of 8kV direct  
contact to lid while Vdd is  
IEC-61000-4-2  
supplied according to the  
operational modes; (Vdd ground  
is separated from earth ground)  
Electrostatic Discharge - Human  
Body Model  
ESD - HBM 1 pulse of 2kV between all I/O  
pin combinations  
JEDEC-JS001  
JEDEC JS-002  
Electrostatic Discharge - Charged  
Device Model  
ESD - CDM 3 discharges of 500V direct  
contact to I/O pins.  
10  
The microphone sensitivity must deviate by no more than 1dB from the initial value afer 3 reflow cycles.  
16  
Datasheet  
1.00  
2022-08-12  
IM73D122V01  
Ultra-low noise high sensitivity digital XENSIVTM MEMS microphone  
Revision history  
Revision history  
Document  
Date of  
Description of changes  
version  
release  
v1.00  
2022-08-12  
Initial release  
Glossary  
Datasheet  
17  
1.00  
2022-08-12  
Trademarks  
All referenced product or service names and trademarks are the property of their respective owners.  
Edition 2022-08-12  
Published by  
Infineon Technologies AG  
81726 Munich, Germany  
Important notice  
Warnings  
The information given in this document shall in no  
event be regarded as a guarantee of conditions or  
characteristics (“Bescgaffengeitsꢁarantie”).  
With respect to any examples, hints or any typical  
values stated herein and/or any information regarding  
the application of the product, Infineon Technologies  
hereby disclaims any and all warranties and liabilities  
of any kind, including without limitation warranties of  
non-infringement of intellectual property rights of any  
third party.  
In addition, any information given in this document is  
subject to customer’s compliance with its obligations  
stated in this document and any applicable legal  
requirements, norms and standards concerning  
customer’s products and any use of the product of  
Infineon Technologies in customer’s applications.  
Due to technical requirements products may contain  
dangerous substances. For information on the types  
in question please contact your nearest Infineon  
Technologies office.  
Except as otherwise explicitly approved by Infineon  
Technologies in a written document signed by  
authorized representatives of Infineon Technologies,  
Infineon Technologies’ products may not be used in  
any applications where a failure of the product or  
any consequences of the use thereof can reasonably  
be expected to result in personal injury.  
©
2022 Infineon Technologies AG  
All Rights Reserved.  
Do you have a question about any  
aspect of this document?  
Email: erratum@infineon.com  
Document reference  
IFX-otw1628687092342  
The data contained in this document is exclusively  
intended for technically trained staff. It is the  
responsibility of customer’s technical departments to  
evaluate the suitability of the product for the intended  
application and the completeness of the product  
information given in this document with respect to such  
application.  

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