TAS5001PFBR

Audio Special Purpose Overview

The TAS5001PFBR is a 2-channel stereo PCM-PWM modulator from the Texas Instruments TAS5000/TAS5100 True Digital Audio Amplifier (TDAA) system. Operating on a single 3V to 3.6V supply, it converts serial PCM digital audio into differential 3.3-V PWM signals for driving external H-bridge power stages like the TAS5100. The device supports 16-, 20-, and 24-bit input data with sampling rates of 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz. It features a 96-dB dynamic range, an internal low-jitter PLL, and a digital interpolation filter. Packaged in a 48-TQFP (7x7 mm), it operates within a commercial temperature range of 0°C to 70°C.

Audio Special Purpose Feature Summary

• Equibit PCM-to-PWM modulation technology providing 96-dB dynamic range and THD+N < 0.08% in system configurations
• Supports multiple serial audio formats including IIS, right/left justified, and DSP modes via MOD pins
• Integrated low-jitter phase-locked loop (PLL) with external filter connections for precise clock generation
• Dedicated mute, power-down, and reset control pins with quiet-mute capability to eliminate clicks and pops

Audio Special Purpose Applications

• Car audio amplifiers and head units
• DVD audio systems
• Home theater setups
• Mini/micro component audio systems

Audio Special Purpose Procurement Notes

Verify the 'R' suffix indicates Tape & Reel packaging containing 1000 units per reel. Confirm the operating temperature grade matches the application requirements, as this specific part number corresponds to the 0°C to 70°C commercial grade. Ensure the design utilizes the TAS5100 H-bridge stage to complete the TDAA architecture.

Audio Special Purpose Selection Notes

Select this component when a cost-effective, high-efficiency digital audio front-end is required. It is suitable for designs needing direct digital interface compatibility with standard AES sampling rates. Designers must account for the external L-C filters required at the PWM outputs and ensure adequate thermal management for the TQFP package.

Audio Special Purpose Part Context

This device belongs to the TAS5000 family of true digital audio amplifiers. It functions exclusively as the modulator stage in a two-part system, requiring the TAS5100 PWM power output device to drive loudspeakers. The PFBR suffix specifically denotes the tape-and-reel packaging variant of the standard PFB tray package.

Audio Special Purpose Replacement Considerations

The TAS5001IPFB serves as the industrial temperature grade (-40°C to 85°C) equivalent. For reel-packaged alternatives, the TAS5001PFBRG4 offers lead-free compliance. Verify pinout and software configuration compatibility before substituting.