TLV320AIC23IPW

Codecs Overview

The TLV320AIC23IPW is a high-performance stereo audio codec manufactured by Texas Instruments, housed in a 28-pin TSSOP package. It supports sampling rates from 8 kHz to 96 kHz with data word lengths of 16, 20, 24, and 32 bits. The device features a third-order multibit sigma-delta ADC with up to 90-dBA SNR and a second-order multibit DAC with up to 100-dBA SNR at 48 kHz. Operating conditions include an analog supply voltage (AVDD) range of 2.7 V to 3.6 V, a digital buffer supply (BVDD) of 2.7 V to 3.6 V, and a digital core supply (DVDD) of 1.42 V to 3.6 V. The industrial temperature rating covers -40°C to +85°C.

Codecs Feature Summary

• Integrates highly efficient linear headphone amplifiers capable of delivering power into low-impedance loads.
• Provides complete electret microphone biasing and buffering solutions with adjustable gain control.
• Supports software-controlled flexible power management for extended battery life in portable applications.
• Features an internal oscillator compatible with standard crystal frequencies for direct system clock generation.

Codecs Applications

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

Codecs Procurement Notes

Verify the specific suffix IPW confirms the 28-pin TSSOP package and the industrial temperature grade (-40°C to +85°C). Confirm that the component matches the original TLV320AIC23 specifications, as the 'B' variant may contain minor updates. Ensure the source document corresponds to the correct revision for the requested part number.

Codecs Selection Notes

Select this component when designing portable audio systems requiring glueless interfaces with TI DSPs. The integrated headphone amplifier and microphone biasing reduce external component count. Verify that the required oversampling rates (250 fs or 272 fs) align with the target processor's clocking capabilities.

Codecs Part Context

This component belongs to the TLV320AIC23 family of stereo audio codecs. The IPW suffix specifically denotes the 28-pin Thin-Shrink Small-Outline Package (TSSOP) variant designed for industrial temperature ranges. It serves as a compact analog I/O solution for consumer electronics.

Codecs Replacement Considerations

The TLV320AIC23PW is the commercial temperature version of this component. The TLV320AIC23BPWG4 represents a lead-free variant within the same family. Verify pin compatibility before substitution.

Codecs FAQ

What are the supported serial interface protocols?

The device supports both SPI-compatible and 2-wire-compatible serial-port protocols for register configuration.

How does the device handle microphone input?

It includes a buffered low-noise voltage output for electret capsule biasing and an integrated buffer amplifier with tunable fixed gain.

Can the codec bypass the ADC/DAC conversion?

Yes, an analog bypass path allows the use of stereo-line inputs and the headphone amplifier while completely bypassing the codec's digital converters.