TLV320DAC23IGQE

ADCs/DACs - Special Purpose Overview

The TLV320DAC23IGQE is a high-performance stereo digital-to-analog converter (DAC) from Texas Instruments, housed in a 32-pin MicroStar Junior package. It utilizes multibit sigma-delta technology with integrated oversampling digital interpolation filters to support data word lengths of 16, 20, 24, and 32 bits at sampling rates from 8 kHz to 96 kHz. The device features an internal oscillator compatible with a 12-MHz crystal, providing system clocks for DSPs and USB interfaces. Key electrical specifications include a signal-to-noise ratio of up to 100 dBA at 48 kHz and power consumption of less than 19 mW during playback. It integrates stereo line inputs/outputs and a headphone amplifier capable of delivering 30 mW per channel into 32 Ω.

ADCs/DACs - Special Purpose Feature Summary

• High-Performance Stereo DAC: 100-dB SNR multibit sigma-delta architecture with integrated oversampling filters.
• Flexible Power Management: Playback power consumption under 19 mW; standby current below 150 µW; power-down current below 15 µW.
• Integrated Analog Features: Stereo line inputs with analog bypass path, stereo line outputs, and a highly efficient linear headphone amplifier delivering 30 mW into 32 Ω.
• Software Control: McBSP-compatible serial port supporting SPI and 2-wire protocols for register configuration.

ADCs/DACs - Special Purpose Applications

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

ADCs/DACs - Special Purpose Procurement Notes

Verify the operating temperature range matches the application requirements, as the IGQE suffix denotes the -40°C to +85°C industrial grade. Confirm that the design accommodates the specific voltage levels for AVDD, HPVDD, BVDD, and DVDD as defined in the recommended operating conditions. Ensure the PCB layout accounts for the small form factor of the 32-pin MicroStar Junior package to maintain signal integrity and thermal performance.

ADCs/DACs - Special Purpose Selection Notes

Select the TLV320DAC23IGQE when a compact solution with integrated headphone amplification and low power consumption is required for portable audio devices. This component is suitable for designs utilizing TI C54x DSPs due to its optimized oversampling rates (250 fs and 272 fs) and glueless interface compatibility. Consider the available packages (GQE, PW, RHD) based on board space constraints and thermal management needs.

ADCs/DACs - Special Purpose Part Context

The TLV320DAC23 series includes variants with different temperature ratings and packages. The GQE suffix corresponds to the 32-pin MicroStar Junior package, while PW indicates a 28-pin TSSOP and RHD denotes a 28-pin QFN. The 'I' prefix specifies the industrial temperature range (-40°C to +85°C), whereas the absence of 'I' typically indicates the commercial range (-10°C to +70°C). All variants share the same core functionality and pinout structure.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. Designers should consult Texas Instruments for potential replacements or upgrades within the audio codec portfolio.