TLV320AIC25CPFB

Overview

The TLV320AIC25CPFB is a low-power, highly integrated stereo voice band CODEC in a 48-pin TQFP package. It features two 16-bit oversampling sigma-delta ADCs and DACs with programmable sampling rates up to 26 ksps (with filters) or 104 ksps (bypassed). The device supports analog and digital sidetone, programmable input/output gain amplifiers, and selectable FIR/IIR filters. It operates on a 2.7-V to 3.6-V analog supply and a 1.65-V to 1.95-V digital core supply, consuming 14.9 mW per channel at 3 V. The component includes built-in microphone, handset, and headset amplifiers, plus an 8-ohm speaker driver.

Feature Summary

• Integrates dual 16-bit sigma-delta converters with programmable gain amplifiers and selectable digital filters for high-resolution voice signal processing.
• Supports glueless interface to DSPs via SMARTDM serial port and flexible host control through I2C or S2C interfaces.
• Includes comprehensive power management with hardware and software-controlled power-down modes for individual blocks to minimize system consumption.

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature range. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the datasheet revision date to confirm all electrical characteristics match your design specifications before finalizing procurement.

Selection Notes

Select this component for applications requiring low-power stereo voice conversion with integrated analog drivers. Verify that the required sampling rate fits within the 26 ksps limit when using internal filters, or 104 ksps if bypassing them. Confirm compatibility with the host processor's serial interface protocol, specifically SMARTDM or standard I2C/S2C control schemes.

Part Context

This part belongs to the TLV320AIC2x family, which includes variants like the AIC20, AIC21, and AIC24. These devices share a common architecture designed for portable audio applications. The CPFB suffix indicates a commercial temperature range variant housed in a 48-TQFP package, distinguishing it from industrial grade options.

Replacement Considerations

Direct replacements within the same family include the TLV320AIC20, TLV320AIC21, and TLV320AIC24. Verify pinout compatibility and specific feature sets such as the presence of the speaker driver, which may vary between sub-models.