TLV320AIC23BIRHDG4

Overview

The TLV320AIC23BIRHDG4 is a high-performance stereo audio codec from Texas Instruments, utilizing multibit sigma-delta technology for both analog-to-digital and digital-to-analog conversion. It supports data word lengths of 16, 20, 24, and 32 bits with sampling rates ranging from 8 kHz to 96 kHz. The device features an ADC with up to 90-dBA SNR and a DAC with up to 100-dBA SNR at 48 kHz. Operating voltages include a core digital supply of 1.42 V to 3.6 V and buffer/analog supplies of 2.7 V to 3.6 V. It is housed in a 28-pin RHD (PQFP) package.

Feature Summary

• Integrated stereo headphone amplifier delivering 30 mW per channel into 32 Ω
• Complete electret microphone biasing and buffering solution with programmable gain
• Flexible power management allowing selective shutdown of functions to extend battery life
• Supports industry-standard I2S, MSB, LSB justified, and DSP modes via McBSP-compatible serial port

Applications

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

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free and RoHS compliance status according to the manufacturer's current documentation. Confirm that the RHD package designation corresponds to the 28-pin PQFP form factor required for the target PCB layout. Ensure the industrial temperature range rating (-40°C to 85°C) matches the environmental operating conditions of the final assembly.

Selection Notes

Select this component when a low-power stereo codec with integrated headphone amplification is required for portable devices. It is suitable for designs needing direct interface with TI C54x DSPs or USB controllers due to optimized oversampling rates. Consider the 28-pin PQFP package if board space allows for larger footprints compared to MicroStar Junior options.

Part Context

This part belongs to the TLV320AIC23B series of low-power stereo codecs. The 'I' suffix denotes the industrial temperature range variant (-40°C to 85°C), while 'RHD' specifies the 28-pin plastic quad flat pack package. The 'G4' suffix typically relates to environmental compliance and packaging details as defined by Texas Instruments.

Replacement Considerations

The TLV320AIC23BRHD is the commercial grade equivalent with a -10°C to 70°C operating range. For smaller footprint requirements, the GQE or PW packages offer alternative physical dimensions within the same functional family.