TLV320AIC23BIZQER

Overview

The TLV320AIC23BIZQER is a high-performance stereo audio codec manufactured by Texas Instruments, featuring integrated sigma-delta ADCs and DACs. It supports sampling rates from 8 kHz to 96 kHz with data word lengths of 16, 20, 24, or 32 bits. The device achieves an ADC signal-to-noise ratio of up to 90 dBA and a DAC SNR of up to 100 dBA at 48 kHz. Power consumption is 23 mW in playback mode, with standby power under 150 µW and shutdown power under 15 µW. It operates on analog supplies of 2.7 V to 3.6 V and digital core supplies of 1.42 V to 3.6 V. The component utilizes a 32-pin MicroStar Junior package (GQE/ZQE) and functions within an industrial temperature range of -40°C to 85°C.

Feature Summary

• Integrates multibit sigma-delta modulation for high-fidelity audio conversion
• Includes a low-power stereo headphone amplifier capable of driving 32-ohm loads
• Supports flexible software control via SPI and 2-wire compatible serial interfaces
• Features an internal oscillator optimized for direct connection to DSP and USB systems

Applications

• Portable solid-state audio players and recorders
• Digital voice encryption systems
• High-fidelity recording equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature rating. Confirm that the component status aligns with project lifecycle requirements, as older revisions may be discontinued. Ensure all electrical parameters match the design specifications before finalizing procurement orders.

Selection Notes

Select this component when a compact solution with integrated headphone amplification is required for portable devices. Verify compatibility with the host processor's serial interface protocols, specifically I2S or McBSP modes. Ensure the system clock configuration matches the available crystal frequencies to support the desired audio sample rates without additional buffering.

Part Context

This part belongs to the TLV320AIC23B family of stereo audio codecs designed for low-power applications. It serves as a complete analog input/output solution, combining ADC/DAC functionality with line inputs, microphone biasing, and headphone drivers. The ZQE suffix indicates the use of the proprietary 32-pin MicroStar Junior package, which minimizes board space compared to standard TSSOP options.

Replacement Considerations

Direct replacements include other variants within the TLV320AIC23B series such as TLV320AIC23BIGQE or TLV320AIC23BIPW, provided the package footprint and thermal characteristics are compatible with the existing PCB layout.