The true digital audio amplifier (TDAA) is a new paradigm in digital audio. One TDAA system consists of the TAS5001 PCM-PWM modulator device + TAS5100 PWM power output device. This system accepts a serial PCM digital audio stream and converts it to a 3.3-V PWM audio stream (TAS5001). The TAS5100 device then provides a large-signal PWM output. This digital PWM signal is then demodulated providing power output for driving loudspeakers. This patented technology provides low-cost, high-quality, high-efficiency digital audio applicable to many audio systems developed for the digital age. The TAS5001 is an innovative, cost-effective, high-performance 24-bit stereo PCM-PWM modulator based on Equibit? technology. It has a wide variety of serial input options including right-justified (16, 20, or 24 bits), IIS (16, 20, or 24 bits), left-justified (16 bits), or DSP (16 bits) data formats.