SB3230-E1-T

Audio Special Purpose Overview

The SB3230-E1-T is a preconfigured Digital Signal Processor (DSP) system specifically designed for hearing aid applications. Manufactured by onsemi, it features four independent audio channels with Adaptive Feedback Cancellation (AFC), Adaptive Noise Reduction, and Wide Dynamic Range Compression (WDRC). The device communicates via I2C interface and operates within a supply voltage range of 1.06V to 1.16V. It is housed in a 25-lead SIP package (specifically 25-FLGA or similar small outline package depending on specific datasheet revision, typically dimensions around 5.72mm x 3.18mm) suitable for deep-in-canal (CIC) and behind-the-ear (BTE) hearing aids.

Audio Special Purpose Feature Summary

• Four-channel DSP architecture optimized for hearing aids
• Adaptive Feedback Cancellation (AFC) to prevent啸叫 (whistling)
• Adaptive Noise Reduction algorithms
• I2C serial programming interface
• Supply voltage range: 1.06V to 1.16V
• Preconfigured firmware for immediate deployment in hearing aids
• Supports WDRC (Wide Dynamic Range Compression)

Audio Special Purpose Applications

• Hearing Aids (Deep-in-Canal CIC)
• Hearing Aids (Behind-The-Ear BTE)
• Low-power audio processing systems requiring dedicated feedback cancellation

Audio Special Purpose Procurement Notes

Verify the -T suffix indicates tape-and-reel packaging. Confirm current availability status as this component may be subject to lifecycle changes; check onsemi's official product page for active/discontinued status.

Audio Special Purpose Selection Notes

Select this component for hearing aid designs requiring a fixed-function, low-voltage DSP with integrated feedback cancellation. The I2C interface allows for configuration but the core DSP functions are preconfigured. Ensure the 25-lead SIP/FLGA package fits the mechanical constraints of the target hearing aid form factor.