TAS5012IPFB

Audio Special Purpose Overview

The TAS5012IPFB is a True Digital Audio Amplifier (TDAA) PCM-PWM modulator by Texas Instruments, designed for high-quality digital audio amplification. It accepts serial PCM digital audio streams and converts them into a 3.3-V PWM audio stream compatible with the TAS5110 power output device. The device supports 16-, 20-, or 24-bit input data formats and sampling rates of 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-ohm load. It operates on a single 3V to 3.6V supply within a 48-pin TQFP package.

Audio Special Purpose Feature Summary

• 102-dB Dynamic Range and THD+N < 0.06%
• Supports 32-kHz to 192-kHz Sampling Rates
• Low-Jitter Internal PLL and Equibit Modulator Technology
• Integrated De-emphasis Filter for 44.1-kHz and 48-kHz

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 operating temperature grade matches the application requirements; the IPFB suffix indicates an automotive-grade range of -40°C to 85°C. Confirm the packaging format, as the datasheet notes that taped and reeled options are available by adding an 'R' suffix to the ordering number. Ensure compatibility with the paired TAS5110 H-bridge power stage for complete system functionality.

Audio Special Purpose Selection Notes

Select the TAS5012IPFB when an automotive-grade component (-40°C to 85°C) is required for digital audio processing. This model supports master and slave clocking modes, allowing flexibility in system synchronization. Verify that the host processor can provide the necessary serial interface formats (IIS, DSP, Right/Left Justified) via the MOD pins.

Audio Special Purpose Part Context

The TAS5012 is part of the TDAA system, functioning as the PCM-PWM modulator paired with the TAS5110 PWM power output device. It utilizes Equibit technology for low-distortion modulation. The IPFB variant specifically denotes the industrial/automotive temperature range extension compared to the standard PFB version.

Audio Special Purpose Replacement Considerations

The TAS5012PFB is the commercial-grade equivalent with a 0°C to 70°C operating range. For reel-packaged versions, consider TAS5012IPFBR. Direct functional replacements within the same family include the TAS5010 and TAS5015.