TAS5012PFBR

Audio Special Purpose Overview

The TAS5012PFBR is a true digital audio amplifier (TDAA) PCM-PWM modulator manufactured by Texas Instruments. It converts serial PCM digital audio streams into 3.3-V PWM signals for driving external H-bridge power devices like the TAS5110. The device supports 16-, 20-, or 24-bit input data and sampling rates from 32 kHz to 192 kHz. Key electrical specifications include a 102-dB dynamic range, THD+N less than 0.06%, and 90% power efficiency into an 8-Ω load. It operates on a single 3V to 3.6V supply and features a low-jitter internal PLL, mute function, and clicks/pops reduction.

Audio Special Purpose Feature Summary

• 102-dB dynamic range with THD+N < 0.06%
• Supports 32-kHz to 192-kHz sampling rates
• Compatible with IIS, DSP, right/left-justified serial formats
• Integrated low-jitter PLL and de-emphasis filter

Audio Special Purpose Applications

• DVD-Audio systems
• Home theater amplifiers
• Car audio amplifiers and head units
• Internet music appliances
• Mini/micro component systems

Audio Special Purpose Procurement Notes

Verify the 'R' suffix indicates Tape & Reel packaging as specified in the ordering information. Confirm the operating temperature range matches the application requirements, noting that the PFB package variant typically covers 0°C to 70°C unless designated otherwise. Ensure compatibility with the 48-TQFP footprint during procurement planning.

Audio Special Purpose Selection Notes

Select this component when designing a TDAA system requiring high-efficiency digital audio processing. It must be paired with a PWM power output stage such as the TAS5110. Verify interface compatibility with the host processor's serial audio port, ensuring support for the required bit depth and sampling rate. Check power supply constraints against the 3.3V nominal requirement.

Audio Special Purpose Part Context

The TAS5012 is part of the True Digital Audio Amplifier family, functioning specifically as the PCM-PWM modulator. It works in conjunction with power output devices like the TAS5110 to form a complete amplification solution. This architecture separates the digital modulation logic from the high-power analog output stage to optimize performance and cost.

Audio Special Purpose Replacement Considerations

Datasheet references indicate the TAS5010 and TAS5015 are similar devices within the same product family. Verify pinout and feature compatibility before substitution.