TLV320AIC24CPFB

Overview

The TLV320AIC24CPFB is a low-power, highly integrated, dual-channel audio CODEC manufactured by Texas Instruments. It features two 16-bit oversampling sigma-delta analog-to-digital converters (ADCs) and two 16-bit digital-to-analog converters (DACs). The device supports programmable sampling rates up to 26 ksps with on-chip IIR/FIR filters or 104 ksps when filters are bypassed. It operates with a digital core voltage of 1.65 V to 1.95 V and an analog supply of 2.7 V to 3.6 V. Key performance metrics include an ADC signal-to-noise ratio of 84 dB and a DAC SNR of 92 dB over a 13-kHz bandwidth. The component is housed in a 48-pin TQFP package.

Feature Summary

• Integrates Smart Time Division Multiplexed (SMARTDM) serial port for glueless interface to DSPs and microcontrollers.
• Includes built-in analog functions such as microphone preamplifiers, handset/headset amplifiers, and programmable gain amplifiers.
• Supports flexible host port configuration selectable between I2C and S2C protocols for software control.
• Features extensive power management with hardware and software-controlled power-down modes.

Applications

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

Procurement Notes

Verify the specific suffix CPFB corresponds to the commercial temperature range (0°C to 70°C) and 48-TQFP package. Confirm that the ordering code matches the exact pinout and electrical specifications defined in the official datasheet SLAS363D. Ensure compatibility with required supply voltages before integration.

Selection Notes

Select this model for voice-band applications requiring low power consumption and high integration. The AIC24 variant lacks the built-in speaker driver found in the AIC20/AIC21 series, making it suitable for line-level or headset interfaces rather than direct speaker driving. Verify thermal requirements for the TQFP-48 package under continuous operation.

Part Context

The TLV320AIC24 belongs to the TLV320AIC2x family of low-cost, low-power audio CODECs. This family includes variants like the AIC20, AIC21, AIC25, and their industrial temperature counterparts (AIC20K, AIC24K). The AIC24 specifically targets applications needing dual-channel conversion without the integrated speaker amplifier present in other family members.

Replacement Considerations

Public confirmed substitute part numbers: TLV320AIC24KFBR, TLV320AIC24KIPFBR.