ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：AUDIO MICROPHONE
- Series：SPM
- Mfr：Syntiant
- Package：Bulk
- Type：MEMS (Silicon)
- Output Type：Analog
- Direction：Omnidirectional
- Frequency Range：100 Hz ~ 8 kHz
- Sensitivity：-26dB
- S/N Ratio：-
- Impedance：300 Ohms
- Voltage Range：1.6 V ~ 3.6 V
- Current - Supply：500 µA
- Port Location：Top
- Ratings：-
- Termination：Solder Pads
- Size / Dimension：0.186" L x 0.148" W (4.72mm x 3.76mm)
- Height (Max)：0.049" (1.25mm)
- Shape：Rectangular
- Grade：-
- Qualification：-
- Voltage - Rated：-
Download product information
Overview
The Syntiant SPM0205HD4 is a digital MEMS microphone designed for always-on voice detection and wake-word processing in edge AI applications. It integrates a high-performance analog-to-digital converter (ADC) directly on the silicon die to output PDM (Pulse Density Modulation) data, minimizing noise and power consumption compared to traditional analog microphones. The device features a top-port acoustic design with an integrated dust filter, ensuring reliable operation in harsh environments. Its compact footprint and low profile make it suitable for space-constrained portable devices requiring high-fidelity audio capture for neural network-based speech recognition.
Feature Summary
- Integrated ADC for direct digital PDM output
- Optimized for low-power always-on voice detection
- Top-port design with integrated dust filter
Applications
- Smart speakers and voice assistants
- Wearable devices with voice control
- IoT sensors requiring wake-word detection
Procurement Notes
Verify the specific suffix code for package type and tape/reel configuration before ordering. Confirm acoustic performance specifications against the latest datasheet revision. Ensure compatibility with your system's PDM interface timing requirements. Check for RoHS compliance documentation if required by your manufacturing standards.
Selection Notes
Select this component when integrating neural processing units for local voice command recognition. Consider the PDM interface compatibility with your host processor. Evaluate the acoustic chamber design for optimal sensitivity and noise rejection. Compare power consumption metrics against analog alternatives for battery-operated use cases.
Part Context
Syntiant specializes in neural processing units and sensor solutions for edge AI. The SPM0205HD4 complements their NPU offerings by providing optimized audio input for voice-centric applications. This microphone is part of a broader ecosystem aimed at reducing cloud dependency for speech recognition tasks.
FAQ
What is the output format of the SPM0205HD4?
The SPM0205HD4 outputs Pulse Density Modulation (PDM) digital audio data via a standard two-wire interface.
Is the SPM0205HD4 suitable for noisy environments?
Yes, it is designed with features to maintain signal integrity in typical consumer environments, though acoustic housing design impacts overall performance.
