TLV320AIC23PWR

Overview

The TLV320AIC23PWR is a high-performance stereo audio codec manufactured by Texas Instruments, housed in a 28-pin TSSOP package. It integrates multibit sigma-delta ADCs and DACs supporting data word lengths of 16, 20, 24, and 32 bits with sampling rates from 8 kHz to 96 kHz. The device operates on a digital core supply (DVDD) ranging from 1.42 V to 3.6 V and analog/buffer supplies (AVDD/BVDD) from 2.7 V to 3.6 V. It features an SNR of up to 90 dB for the ADC and 100 dB for the DAC at 48 kHz. Playback power consumption is 23 mW, standby is less than 150 µW, and shutdown is less than 15 µW.

Feature Summary

• Integrates highly efficient linear headphone amplifiers capable of delivering 30 mW per channel into 32 Ω loads.
• Supports software control via TI McBSP-compatible multiprotocol serial ports including SPI and 2-wire interfaces.
• Includes complete electret microphone biasing and buffering solutions with low-noise current sources.
• Features flexible power management allowing selective shutdown of codec functions under total software control.

Applications

• Portable solid-state audio players
• Digital audio recorders
• MP3 digital audio players

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific part number matches the required operating temperature range and package type. Review the latest datasheet revision for any updates to electrical characteristics or pin configurations before finalizing procurement orders.

Selection Notes

Select this component when designing portable audio systems requiring low power consumption and high-fidelity stereo conversion. Ensure the host processor supports the required McBSP-compatible serial interface protocols. Verify that the system clock requirements align with the internal oscillator capabilities for standard oversampling rates.

Part Context

This component belongs to the TLV320AIC23 family of audio codecs designed for portable applications. It provides a compact solution for integrating analog audio input and output functions within digital signal processing environments. The TSSOP package variant offers a balance between board space efficiency and ease of assembly compared to smaller proprietary packages.

Replacement Considerations

Direct replacements include other variants within the TLV320AIC23 family such as the GQE package version. Evaluate alternative components based on matching pinout compatibility, voltage supply ranges, and interface protocol support to ensure seamless integration without circuit redesign.

FAQ

What are the supported data word lengths for the TLV320AIC23?

The device supports data-transfer word lengths of 16, 20, 24, and 32 bits.

How does the TLV320AIC23 handle microphone biasing?

It includes a dedicated MICBIAS pin providing a buffered low-noise voltage output suitable for biasing electret capsules, along with an integrated buffer amplifier.

What is the maximum output power of the headphone amplifier?

The headphone amplifier can deliver 30 mW per channel into a 32 Ω load.