TLV320AIC20CPFBR

Codecs Overview

The TLV320AIC20CPFBR is a low-power, highly integrated, dual-channel audio CODEC featuring two 16-bit oversampling sigma-delta analog-to-digital converters and two digital-to-analog converters. It supports a maximum sampling rate of 26 kSPS with on-chip filters or up to 104 kSPS when bypassed. The device 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. It achieves an 84 dB signal-to-noise ratio for the ADC and 92 dB for the DAC over a 13-kHz bandwidth. Packaged in a 48-TQFP (PFB) format, it is characterized for commercial operation from 0°C to +70°C.

Codecs Feature Summary

• Integrates programmable gain amplifiers, microphone preamplifiers, and speaker drivers for direct connection to voice-band peripherals.
• Supports SMARTDM serial interface for glueless connection to DSPs and microcontrollers with automatic cascade detection.
• Includes selectable FIR/IIR digital filters and analog sidetone control for flexible signal processing.

Codecs Applications

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

Codecs Procurement Notes

Verify the specific suffix 'CPFBR' against the manufacturer's current ordering information to confirm package type, temperature range, and tape-and-reel specifications. Ensure the component matches the required commercial operating temperature range of 0°C to 70°C for the intended application environment.

Codecs Selection Notes

Select this model for applications requiring dual-channel voice-band processing with low power consumption. Verify that the system clock requirements align with the supported master clock frequencies and that the 48-TQFP package fits the board layout constraints.

Codecs Part Context

This component belongs to the TLV320AIC2x family of low-cost, high-performance audio CODECs. It shares architectural similarities with the AIC21, AIC24, and AIC25 models, differing primarily in integrated output drivers and specific pin configurations suitable for various voice communication interfaces.

Codecs Replacement Considerations

Direct replacements within the same family include TLV320AIC21CPFBR, TLV320AIC24CPFBR, and TLV320AIC25CPFBR. Verify functional compatibility regarding integrated drivers and pin assignments before substitution.

Codecs FAQ

What is the maximum sampling rate without digital filters?

The maximum sampling rate is 104 kSPS when the on-chip FIR and IIR filters are bypassed.

Does this device support cascading?

Yes, up to eight TLV320AIC2x devices can be cascaded to a single serial port using the Automatic Cascade Detection feature.

What is the typical power consumption per channel?

The device consumes approximately 14.9 mW per channel at a 3 V supply voltage.