AIC111RHBR

Codecs Overview

The AIC111RHBR is a single-channel audio codec manufactured by Texas Instruments, designed for low-power applications. It operates on a typical 1.3-V supply with a current drain of 350 µA. The device features a noise-shaped delta-sigma ADC and DAC, supporting a 40-kHz sampling rate. Key electrical parameters include an input-referred noise of 2.4-µVrms, 87-dB dynamic range for the ADC, and 108-dB overall dynamic range. It includes a programmable gain amplifier/compressor front end and an H-bridge output driver. The component is housed in a 32-pin QFN (5×5-mm) package.

Codecs Feature Summary

• Integrates a programmable gain amplifier and compressor with selectable attack and decay rates for signal conditioning.
• Features a low-jitter internal oscillator that generates a 5-MHz clock output for external DSP or microcontroller synchronization.
• Includes power supply monitoring and low-battery detection capabilities to automatically manage H-bridge output states during voltage degradation.

Codecs Applications

• Hearing instruments
• Personal medical devices
• Low-power headsets

Codecs Procurement Notes

Verify the specific ordering suffix RHBR corresponds to the tape and reel packaging configuration as defined in the official datasheet. Confirm that the component meets the required functional temperature range specifications for the intended deployment environment before finalizing procurement orders.

Codecs Selection Notes

Select this component for designs requiring a single-channel voice-band codec with minimal power consumption. Ensure the host processor supports either the McBSP DSP protocol or SPI interface for digital communication. Verify that the system can accommodate the 32-pin QFN package dimensions and thermal requirements.

Codecs Part Context

This part belongs to the AIC111 family of microPower DSP/µC compatible audio codecs. The RHBR suffix specifically denotes the tape and reel packaging variant, distinct from the tube-packaged RHB version. It is engineered for portable personal medical and audio applications requiring high dynamic range and low distortion.

Codecs Replacement Considerations

The AIC111RHB serves as a direct alternative with identical electrical characteristics but utilizes tube packaging instead of tape and reel. Designers must verify PCB footprint compatibility if switching between these packaging options.