MP23ABS1TR - MEMS Microphone with Digital Output | STMicroelectronics
料号： MP23ABS1TR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.25 | $1.25 |
| 10 | $1.12 | $11.20 |
| 100 | $0.98 | $98.00 |
| 500 | $0.85 | $425.00 |
| 1,000 | $0.75 | $750.00 |
MP23ABS1TR 概述
A MEMS microphone is a micro-electromechanical system that converts acoustic pressure waves into electrical signals. Unlike traditional electret condenser microphones, MEMS microphones are manufactured using semiconductor fabrication techniques, enabling smaller footprints, higher consistency, and better temperature stability. The MP23ABS1TR belongs to the category of digital-output MEMS microphones, which integrate an analog-to-digital converter (ADC) and output a PDM stream, simplifying interface with digital signal processors (DSPs) and application processors.
Key features of the MP23ABS1TR include a wide frequency response from 100 Hz to 10 kHz, a low current consumption of 650 µA, and a compact 3.5 mm x 2.65 mm x 0.98 mm package (LGA-4). The device also features a high PSRR (Power Supply Rejection Ratio) of 70 dB, ensuring minimal interference from power supply noise. The PDM output supports a clock frequency range of 1.2 MHz to 3.6 MHz, allowing flexible integration with various audio codecs and processors.
The MP23ABS1TR is built on STMicroelectronics' advanced MEMS process, which ensures high reliability and performance consistency. The device includes a built-in low-noise amplifier and a sigma-delta modulator, providing a high-resolution digital output. The package is designed for reflow soldering, with a moisture sensitivity level (MSL) of 1, enabling robust manufacturing.
Typical applications include smartphones, tablets, smart speakers, hearing aids, and IoT devices. In smartphones, the MP23ABS1TR is used for voice capture, noise cancellation, and beamforming. In smart speakers, it enables far-field voice recognition. The device's low power consumption makes it ideal for always-on voice trigger applications.
When designing with the MP23ABS1TR, ensure proper acoustic port placement and PCB layout to minimize noise coupling. The PDM clock and data lines should be routed with controlled impedance and kept away from high-frequency digital signals. A decoupling capacitor of 100 nF should be placed close to the VDD pin to filter power supply noise.
直接替换替代料： MP23ABS1TR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
MP23ABS1
✅ 直接替换📋 参考替代料（不在目录中）
MP23ABS1TR-Q1
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
SPH0645LM4H
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ICS-43434
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MP23ABS1TR 最大额定值与电气特性
| Type | MEMS Microphone |
| 输出类型 | Digital PDM |
| 电源电压 | 1.6 V to 3.6 V |
| Current Consumption | 650 µA |
| Signal-to-Noise Ratio (SNR) | 63 dB |
| Sensitivity | -26 dBFS |
| Frequency Response | 100 Hz to 10 kHz |
| PSRR | 70 dB |
| PDM Clock Frequency | 1.2 MHz to 3.6 MHz |
| 封装 | LGA-4 (3.5 mm x 2.65 mm x 0.98 mm) |
| 安装类型 | Surface Mount |
| 工作温度 | -40°C to +85°C |
| MSL 等级 | 1 |
| RoHS 状态 | Compliant |
| Acoustic Overload Point | 120 dB SPL |
MP23ABS1TR 引脚配置
| 引脚 1 | GND — Ground |
| 引脚 2 | DATA — PDM data output |
| 引脚 3 | CLK — PDM clock input |
| 引脚 4 | VDD — Power supply |
典型应用
MP23ABS1TR 适用于 6 应用s: Smartphones, Smart Speakers, Hearing Aids, IoT Devices, Wearables, Voice-Controlled Appliances.
Smartphones
The MP23ABS1TR is used in smartphones for voice capture, noise cancellation, and beamforming. Its low power consumption (650 µA) and small LGA-4 package make it ideal for space-constrained designs. The digital PDM output interfaces directly with the application processor's audio codec, simplifying the signal chain. With a 63 dB SNR, it ensures clear voice quality for calls and voice assistants. The high PSRR of 70 dB minimizes interference from the phone's power supply, maintaining audio fidelity. In multi-microphone arrays, the MP23ABS1TR's consistent sensitivity and phase response enable effective beamforming algorithms for directional audio capture.
推荐
Smart Speakers
In smart speakers, the MP23ABS1TR enables far-field voice recognition. Its 63 dB SNR and 120 dB SPL acoustic overload point allow it to capture voice commands even in noisy environments. The digital PDM output can be connected to a DSP for wake-word detection and beamforming. The low current consumption is crucial for always-on listening modes. The compact package allows multiple microphones to be placed in an array for 360-degree sound localization. The wide frequency response (100 Hz to 10 kHz) covers the human voice spectrum, ensuring accurate speech recognition. The device's high PSRR ensures that power supply noise from the speaker's amplifier does not degrade voice capture quality.
推荐
Hearing Aids
The MP23ABS1TR is well-suited for hearing aids due to its low power consumption (650 µA) and small size. The digital PDM output can be directly connected to a hearing aid DSP, reducing component count. The 63 dB SNR ensures clear audio amplification, while the 120 dB SPL overload point prevents distortion from loud sounds. The wide supply voltage range (1.6V to 3.6V) accommodates various battery configurations. The device's low self-noise is critical for hearing aid applications where even small amounts of noise can be audible. The compact LGA-4 package allows for miniaturized hearing aid designs that are comfortable and discreet.
推荐
IoT Devices
For IoT devices, the MP23ABS1TR offers a balance of performance and power efficiency. Its 650 µA current consumption extends battery life in wireless sensors and smart home devices. The digital PDM output simplifies integration with low-power microcontrollers. The device's small footprint is ideal for compact IoT modules. The 63 dB SNR ensures reliable voice capture for voice-controlled IoT devices. The wide operating temperature range (-40°C to +85°C) makes it suitable for outdoor and industrial IoT applications. The high PSRR ensures stable performance in environments with varying power supply quality.
推荐
Wearables
The MP23ABS1TR is ideal for wearables such as smartwatches and fitness trackers. Its low power consumption and small package allow for integration into compact devices. The digital PDM output can be connected to the wearable's application processor for voice commands and audio recording. The 63 dB SNR ensures clear voice capture in noisy environments like gyms or outdoors. The device's low profile (0.98 mm) enables slim wearable designs. The wide supply voltage range supports various battery chemistries. The high PSRR ensures audio quality is not affected by the wearable's power management system.
推荐
Voice-Controlled Appliances
The MP23ABS1TR can be used in voice-controlled appliances like smart TVs, refrigerators, and thermostats. Its low power consumption is suitable for always-on voice trigger. The digital PDM output interfaces with the appliance's main processor or a dedicated audio DSP. The 63 dB SNR ensures accurate voice recognition even in noisy home environments. The compact package allows for integration into sleek appliance designs. The wide operating temperature range makes it suitable for appliances that may be exposed to heat or cold. The high PSRR ensures reliable performance despite power supply fluctuations from motors or compressors.
推荐
推荐产品汇总
工程参考数据： MP23ABS1TR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MP23ABS1 | MP23ABS1TR-Q1 | SPH0645LM4H | ICS-43434 |
|---|---|---|---|---|---|
| Package | LGA-4 | LGA-4 - same | LGA-4 - same | LGA-4 - same | LGA-4 - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | Knowles | TDK InvenSense |
| Output Type | Digital PDM | Digital PDM | Digital PDM | Digital PDM | Digital PDM |
| Supply Voltage | 1.6V to 3.6V | 1.6V to 3.6V | 1.6V to 3.6V | 1.6V to 3.6V | 1.6V to 3.6V |
| Current Consumption | 650 µA | 650 µA | 650 µA | 600 µA | 620 µA |
| SNR | 63 dB | 63 dB | 63 dB | 61 dB | 65 dB |
| Sensitivity | -26 dBFS | -26 dBFS | -26 dBFS | -26 dBFS | -26 dBFS |
| PSRR | 70 dB | 70 dB | 70 dB | 70 dB | 70 dB |
关键差异点
- Higher SNR than some competitors （对比 SPH0645LM4H)
- Automotive grade option available （对比 ICS-43434)
- Lower current consumption than some competitors （对比 ICS-43434)
设计说明
Place the MP23ABS1TR close to the acoustic port and ensure the sound hole is not obstructed. Route the PDM clock and data lines with controlled impedance (50 ohms) and keep them away from high-frequency digital signals to avoid noise coupling. Add a 100 nF decoupling capacitor close to the VDD pin.
Ensure the microphone's acoustic port is aligned with the enclosure opening. Use a gasket or seal to prevent acoustic leakage. Keep the PDM data line short and avoid vias to minimize signal degradation. Ground the package's exposed pad to a solid ground plane for optimal performance.
Do not exceed the maximum supply voltage of 3.6V. Ensure the PDM clock frequency is within the specified range (1.2 MHz to 3.6 MHz). Avoid placing the microphone near heat sources or high-vibration components, as this can affect performance. Use a low-noise power supply to maintain the high PSRR.
合规信息
RoHS compliant per STMicroelectronics datasheet. Not AEC-Q100 qualified for standard version; choose MP23ABS1TR-Q1 for automotive.
