TLV320AIC20IPFBRG4

Codecs Overview

The TLV320AIC20IPFBRG4 is a low-power, highly integrated stereo voice band CODEC in a 48-TQFP package. It features two 16-bit oversampling sigma-delta ADCs and two DACs with a maximum sampling rate of 26 ksps using internal filters or 104 ksps when bypassed. The device operates on a 2.7-V to 3.6-V analog supply (AVDD) and a 1.65-V to 1.95-V digital core supply (DVDD). It achieves an 84-dB SNR for the ADC and 92-dB SNR for the DAC over a 13-kHz bandwidth. Power consumption is 14.9 mW per channel at 3 V.

Codecs Feature Summary

• Integrates programmable gain amplifiers, microphone bias, handset/headset drivers, and an 8-ohm speaker driver.
• Supports SMARTDM serial interface for glueless connection to DSPs and microcontrollers.
• Includes selectable FIR/IIR digital filters and analog sidetone control.
• Features extensive hardware and software power-down modes for system conservation.

Codecs Applications

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

Codecs Procurement Notes

Verify the G4 suffix indicates lead-free manufacturing compliant with RoHS standards. Confirm the IPFB package designation matches the required 48-TQFP footprint. Ensure the industrial temperature range (-40°C to 85°C) aligns with the specific application environment requirements before finalizing procurement.

Codecs Selection Notes

Select this component for applications requiring dual-channel voice-band conversion with minimal external components. Consider the available output drivers for headphones, handsets, and speakers. Verify that the host processor supports the SMARTDM or I2C/S2C interfaces for configuration and data transfer.

Codecs Part Context

This part belongs to the TLV320AIC2x family, which includes variants like the AIC20, AIC21, AIC24, and AIC25. These devices share a common architecture but differ in specific output capabilities and temperature grades. The 'I' suffix denotes the industrial temperature range, while 'PFB' specifies the 48-pin TQFP package.

Codecs Replacement Considerations

The TLV320AIC20IPFB is a direct functional equivalent within the same series. Other members of the TLV320AIC2x family may serve as alternatives if pin compatibility and feature sets match the design requirements.

Codecs FAQ

What is the maximum master clock frequency supported?

The device supports a maximum master clock (MCLK) of 100 MHz.

Can the sampling rates for ADC and DAC be different?

Yes, the device allows separate software control for the ADC and DAC, enabling different sampling rates for each.

How many devices can be cascaded on a single serial port?

Up to eight TLV320AIC2x codecs can be cascaded to a single serial port using the automatic cascade detection feature.