SB040412025 – MICROPHONE SCHEMATIC BLOCK

This schematic block features the POM-3535L-3-R, a compact analog condenser microphone designed for clear voice capture, ambient sound sensing, and general-purpose acoustic detection. This electret-style microphone provides a stable analog output with good sensitivity, low noise, and wide frequency response, making it suitable for embedded audio front-ends that rely on external amplification or filtering.

Packaged in a 3.5 × 3.5 mm surface-mount housing with a top acoustic port, this breakout-style module offers convenient access to the microphone output, biasing pins, and ground connections. Its simple, analog interface allows easy integration with op-amp gain stages, CODECs, or ADC inputs for downstream digital processing.

Electret condenser microphones such as the POM-3535L-3-R remain widely used thanks to their reliability, consistent audio performance, and long production availability in consumer and embedded audio markets.

Key Features:

• POM-3535L-3-R analog condenser microphone
• Stable analog output for easy interfacing with op-amps or ADCs
• Compact 3.5 × 3.5 mm top-port package
• Good sensitivity and low self-noise for voice and ambient capture
• Wide frequency response suitable for general audio applications
• Simple two-pin connection (bias + output)
• Breakout designed for clean signal routing and quick prototyping
• Compatible with typical microphone biasing networks

Typical Applications:

• Voice capture and audio detection systems
• Consumer electronics and small appliances
• IoT sound sensing nodes
• Robotics sound input and noise detection
• Portable audio devices and recorders
• General-purpose acoustic sensing in embedded designs

By integrating this Quickboards schematic block, engineers can prototype analog audio front-ends quickly, simplify microphone biasing, and rely on a proven electret microphone architecture suitable for a wide range of embedded audio applications.