DESCRIPTION

· The RHYTHM SB3229 hybrid from ON Semiconductor is a preconfigured DSP system designed for hearing aids, featuring a four-channel compression circuit and an adaptive feedback cancellation algorithm.

· It utilizes a phase cancellation method to enhance stable gain and user comfort, with rapid adjustment capabilities for dynamic feedback situations and resistance to tonal inputs.

· The system includes a trimmer interface for manual configuration and supports full programmability via Serial Data or I2C Interface, along with a 256 kbit EEPROM for programmable and trimmer-based devices.

FEATURES

· Adaptive Feedback Cancellation and WDRC Compression with options for 1, 2, or 4 channels.

· Auto Telecoil with programmable delay, EVOKE Acoustic Indicators, and a Noise Generator for Tinnitus treatment.

· Frequency Response Shaping with Graphic EQ, Trimmer Compatibility with four three-terminal trimmers, and support for I2C and SDA Programming.

· Rocker Switch Support for memory change and volume control, with options for Active Hi or Active Lo Switching.

· Analog or Digital Volume Control with a programmable range, High Quality 20-bit Audio Processing, and High Power/High Gain Capability.

· Includes SOUNDFIT Fitting Software and a Configurable Low Battery Indicator.

APPLICATIONS

· Primarily used in hearing aids to enhance sound quality and user comfort through advanced DSP processing.

· Suitable for environments requiring dynamic feedback reduction and resistance to tonal inputs.

· Ideal for applications needing customizable audio processing features such as volume control, frequency response shaping, and noise generation for Tinnitus treatment.