TLV320AIC20IPFB

Codecs Overview

The TLV320AIC20IPFB is a low-power, highly integrated, programmable 16-bit, dual-channel CODEC manufactured by Texas Instruments. It features stereo 16-bit oversampling sigma-delta A/D and D/A converters with an internal reference voltage. The device supports separate software control for ADC and DAC channels and includes built-in analog functions such as programmable input/output gain amplifiers (PGA), microphone/handset/headset amplifiers, and an 8-ohm speaker driver. It operates with a digital core supply of 1.65 V to 1.95 V and an analog supply of 2.7 V to 3.6 V. The component is housed in a 48-TQFP package and is characterized for industrial operation from -40°C to 85°C.

Codecs Feature Summary

• Integrates stereo 16-bit oversampling sigma-delta A/D and D/A converters with selectable FIR/IIR filters.
• Includes built-in analog crosspoint connectivity for handset, headset, speaker, microphone, or subscriber line connections.
• Features extensive power management with hardware/software power-down modes and independent channel control.
• Supports glueless interface to DSPs via SMARTDM serial port and flexible host port with I2C/S2C compatibility.

Codecs Applications

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

Codecs Procurement Notes

Verify the specific suffix IPFB confirms the industrial temperature range (-40°C to 85°C) and TQFP packaging against the manufacturer's current ordering information. Ensure the design accounts for the distinct analog and digital supply voltage requirements specified in the datasheet. Confirm pinout compatibility if replacing legacy components in existing PCB layouts.

Codecs Selection Notes

Select this component for voice-band applications requiring low power consumption and high integration. The TLV320AIC20 provides necessary analog front-end functions like PGA and sidetone control, reducing external component count. Consider the available sampling rates and filter options when designing for specific audio quality requirements.

Codecs Part Context

This part belongs to the TLV320AIC2x family of low-cost, low-power CODECs. It shares functional similarities with the TLV320AIC21, TLV320AIC24, and TLV320AIC25, differing primarily in specific analog output drivers and feature sets. The 'K' variants offer extended temperature ranges, while the standard 'I' suffix denotes industrial grade operation.

Codecs Replacement Considerations

Direct replacements within the same family include TLV320AIC21IPFB, TLV320AIC24IPFB, and TLV320AIC25IPFB. Verify that the alternative part number matches the required analog output capabilities, such as the presence or absence of a speaker driver, before substitution.