TLV320AIC21CPFBR

Codecs Overview

The TLV320AIC21CPFBR is a low-power, highly integrated, dual-channel audio CODEC featuring stereo 16-bit oversampling sigma-delta A/D and D/A converters. It supports a maximum conversion rate of 26 kSPS with on-chip IIR/FIR filters or up to 104 kSPS when filters are bypassed. The device operates with analog supply voltages ranging from 2.7 V to 3.6 V and digital core supplies from 1.65 V to 1.95 V. It achieves an SNR of 84 dB for the ADC and 92 dB for the DAC over a 13-kHz bandwidth. The component is housed in a 48-TQFP package and is characterized for commercial operation between 0°C and +70°C.

Codecs Feature Summary

• Integrates programmable input and output gain amplifiers alongside microphone, handset, and headset amplifiers.
• Supports glueless interface to DSPs via SMARTDM serial port and flexible host port with selectable I2C or S2C protocols.
• Includes built-in analog functions such as sidetone control, antialiasing filter, and selectable FIR/IIR digital filters.
• Features extensive power management with hardware/software power-down modes to maximize system conservation.

Codecs Applications

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

Codecs Procurement Notes

Verify the specific suffix CPFBR against the manufacturer's current Package Option Addendum to confirm the TQFP-48 packaging and commercial temperature range specifications. Ensure that the ordering information matches the latest datasheet revision SLAS363D to avoid discrepancies in pinout or electrical characteristics during procurement.

Codecs Selection Notes

Select this component for voice-band applications requiring low power consumption and high integration. It is suitable for designs needing separate software control for ADC and DAC channels. Consider the available speaker driver option if driving 8-ohm loads is required, noting that this feature is specific to certain variants within the family.

Codecs Part Context

This part belongs to the TLV320AIC2x series, which includes the AIC20, AIC21, AIC24, and AIC25 models. These devices share common architectural features but differ in specific analog interfaces and driver capabilities. The AIC21 variant specifically integrates the necessary amplifiers for handset and headset connections while maintaining compatibility with standard serial interfaces.

Codecs Replacement Considerations

The TLV320AIC20CPFBR and TLV320AIC24CPFBR are functionally similar members of the same family. Verify specific analog output configurations, such as the presence of a speaker driver, before substituting, as these features vary across the AIC2x series.