TLV320AIC23BIGQE

Codecs Overview

The TLV320AIC23BIGQE is an industrial-grade stereo audio codec from Texas Instruments, utilizing multibit sigma-delta technology for high-fidelity analog-to-digital and digital-to-analog conversion. It supports sampling rates from 8 kHz to 96 kHz with word lengths of 16, 20, 24, or 32 bits. The ADC achieves a signal-to-noise ratio of up to 90 dBA, while the DAC reaches 100 dBA at 48 kHz. Operating within a temperature range of -40°C to 85°C, it features low power consumption, including 23 mW during playback. The device integrates a stereo headphone amplifier capable of delivering 30 mW into 32 Ω loads.

Codecs Feature Summary

• Integrated electret microphone biasing and buffering solution with tunable gain
• Analog bypass path allowing direct connection of line inputs to headphone outputs
• Flexible power management with software-controlled shutdown modes
• Supports industry-standard oversampling rates and optimized rates for DSP interfaces

Codecs Applications

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

Codecs Procurement Notes

Verify the specific package type required for the design, as the GQE suffix denotes the MicroStar Junior package. Confirm that the industrial temperature rating (-40°C to 85°C) aligns with the environmental requirements of the target application. Ensure compatibility with the system's digital core voltage levels, which range from 1.42 V to 3.6 V.

Codecs Selection Notes

Select this component when an industrial temperature range is mandatory for portable audio applications. The integrated headphone amplifier simplifies designs requiring direct drive for low-impedance headphones. Consider the available oversampling rates if interfacing directly with TI C54x DSPs or USB controllers to minimize external clocking components.

Codecs Part Context

This part belongs to the TLV320AIC23B family of high-performance stereo codecs. The 'I' suffix indicates the industrial temperature grade, distinguishing it from commercial variants. The 'GQE' suffix specifies the 32-pin MicroStar Junior package, which offers the smallest board area in the series.

Codecs Replacement Considerations

The TLV320AIC23BGQE serves as the commercial temperature equivalent. For pin-compatible alternatives in different packages, consider the TLV320AIC23BPW (TSSOP) or TLV320AIC23BRHD (PQFP). Verify functional equivalence regarding power supply requirements and interface protocols before substitution.