
MEMS microphone (digital/analog) test
MEMS (Micro-Electro-Mechanical System) Microphone is a microphone based on MEMS technology. Simply speaking, a capacitor is integrated on a micro-silicon wafer. It can be manufactured by using surface-mount technology (SMT). It is able to withstand high reflow temperature, easy to integrate with the CMOS process and other audio circuits. It has improved noise cancellation performance and good RF and EMI suppression. CRY6151B Electroacoustic Analyzer supports digital (PDM/I2S) and analog microphone testing, including parameters such as sensitivity, phase, distortion, SNR, and max. SPL. It meets laboratory testing requirements in many aspects. It also supports multi-channel acquisition and analysis, which can be integrated with programming and testing to improve productivity.
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Customizable fixture
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High and stable test efficiency
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Multi-channel and full automation

MEMS Digital Microphone Test
Connecting the MEMS under test to CRY573 Digital-Analogue Converter (DAC)
CRY573 Digital-Analogue Converter (DAC)output is connected to CRY6151B LINE IN port
CRY6151B outputs audio through the MOUTH1 port to make CRY609 Mouth Simulator sound
MEMS microphone captures sound
Input into CRY6151B analyzer for analysis

MEMS Analog Microphone Test
Connect the MEMS under test to CRY6151B DUT MIC power supply, LINE IN signal input interface
CRY6151B outputs audio through the MOUTH1 port to make CRY609 Mouth Simulator sound
MEMS microphone captures sound
Input into CRY6151B analyzer for analysis
MEMS Microphone Test | Frequency Response (FR) |
Sensitivity | |
Total Harmonic Distortion (THD) | |
SNR | |
Directivity | |
Current | |
Max. SPL (AOP) |
CRY6151B/CRY6151 Electroacoustic Analyzer | X1 | Standard | Details |
CRY609 Mouth Simulator | X1 | Standard | Details |
CRY573 Audio Adapter | X1 | Standard items for digital silicon microphone test | Details |
Test cable | X1 | Standard | Details |
Customized fixture | X1 | Standard | Details |
CRY333 Measurement Microphone | X1 | *Optional* | Details |
CRY507 Preamplifier | X1 | *Optional* | Details |
CRY5611 Sound Level Calibrator | X1 | *Optional* | Details |
PC | X1 | *Optional* | Details |