TAS5001PFB

Audio Special Purpose Overview

The TAS5001PFB is a stereo PCM-to-PWM modulator from the Texas Instruments TAS5000/TAS5100 True Digital Audio Amplifier (TDAA) system. It accepts serial PCM digital audio streams and converts them into 3.3-V PWM signals for driving external H-bridge power stages like the TAS5100. The device supports 16-, 20-, or 24-bit input data at sampling rates of 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz. Key electrical specifications include a 96-dB dynamic range, THD+N less than 0.08%, and operation on a single 3V to 3.6V supply. It features an internal low-jitter PLL, de-emphasis filtering, and mute functions.

Audio Special Purpose Feature Summary

• Equibit PCM-to-PWM modulation technology with 96-dB dynamic range
• Supports IIS, DSP, left-justified, and right-justified serial interfaces
• Integrated low-jitter PLL and 24-bit linear phase FIR interpolation filter
• Hardware mute and clicks/pops reduction capabilities

Audio Special Purpose Applications

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

Audio Special Purpose Procurement Notes

Verify the operating temperature grade matches the application requirements. The 'PFB' suffix indicates the commercial grade variant rated for 0°C to 70°C ambient temperature. For automotive or industrial environments requiring -40°C to 85°C operation, the 'IPFB' suffix must be selected instead. Confirm package availability as distribution channels may vary between tray and tape-and-reel formats.

Audio Special Purpose Selection Notes

Select the TAS5001PFB for commercial-grade consumer electronics where the operating environment remains within 0°C to 70°C. Ensure the design accommodates the required 3.3V logic levels and differential PWM outputs. Pair this modulator with a compatible power stage, such as the TAS5100, to complete the TDAA system. Verify that the host processor can provide the necessary master clock frequencies (e.g., 11.2896 MHz for 44.1 kHz) or configure the device for slave mode operation.

Audio Special Purpose Part Context

The TAS5001PFB belongs to the TAS5000 family of True Digital Audio Amplifiers. It serves as the digital front-end modulator in a two-chip architecture, working in conjunction with the TAS5100 PWM power output device. This combination allows for high-efficiency, high-quality digital audio amplification by converting digital audio directly to a pulse-width modulated signal before power amplification.

Audio Special Purpose Replacement Considerations

For applications requiring extended temperature ranges (-40°C to 85°C), use the TAS5001IPFB. Both devices share identical pinouts and functionality; the difference lies solely in the qualified operating temperature range.