TLV320AIC20IPFBG4

Codecs Overview

The TLV320AIC20IPFBG4 is a low-power, highly integrated stereo audio codec featuring two 16-bit sigma-delta analog-to-digital converters and two 16-bit digital-to-analog converters. It supports sampling rates up to 26 ksps with on-chip filters or 104 ksps when bypassed. The device operates with a 2.7 V to 3.6 V analog supply (AVDD) and a 1.65 V to 1.95 V digital core supply (DVDD). Signal-to-noise ratios are typically 84 dB for the ADC and 92 dB for the DAC. It utilizes a SMARTDM serial interface and an I2C/S2C host port for control.

Codecs Feature Summary

• Integrates programmable gain amplifiers, microphone bias, and speaker drivers for direct connection to handsets, headsets, and microphones.
• Includes selectable FIR and IIR digital filters with bypass capability for flexible signal processing.
• Supports glueless cascading of multiple devices via the SMARTDM serial port for multi-channel expansion.

Codecs Applications

• Wireless accessories
• Hands-free car kits
• VOIP systems

Codecs Procurement Notes

Verify the G4 suffix indicates lead-free composition and RoHS compliance per Texas Instruments standards. Confirm the IPFB package designation matches the required 48-TQFP form factor. Check current availability status as this component may be subject to lifecycle changes.

Codecs Selection Notes

Select this model for applications requiring separate analog and digital power domains to minimize noise. Ensure the host processor supports the SMARTDM synchronous serial protocol or can emulate it. Verify that the required sampling rate falls within the supported range of the internal clock dividers.

Codecs Part Context

This part belongs to the TLV320AIC2x family of dual-voice codecs. It shares architectural similarities with the AIC21, AIC24, and AIC25 variants, differing primarily in specific output driver configurations and available pinouts for different acoustic interfaces.

Codecs Replacement Considerations

Publicly confirmed substitutes include the TLV320AIC21IPFBG4 and TLV320AIC24IPFBG4. These parts share the same package and pinout but may have variations in integrated output drivers or specific feature sets.