TAS2521

TAS2521 www.ti.com SLAS687A – FEBRUARY 2013 – REVISED FEBRUARY 2013 Digital Input Class-D Speaker Amplifier with Embedded miniDSP and mono headphone amplifier Check for Samples: TAS2521 1 INTRODUCTION 1.1 Features 1 Digital Input Mono Speaker Amp Instruction-Programmable Embedded miniDSP Supports 8-kHz to 192-kHz Sample Rates Mono Class-D BTL Speaker Driver (2 W Into 4 Ω or 1.7 W Into 8 Ω) Mono Headphone Driver Two Single-Ended Inputs With Output Mixing and Level Control Embedded Power-on-Reset Integrated LDO Built-in Digital Audio Processing Blocks With User-Programmable Biquad Filters Integrated PLL Used for Programmable Digital Audio Processor I2S, Left-Justified, Right-Justified, DSP, and TDM Audio Interfaces I2C and SPI control with auto-increment Full Power-Down Control Power Supplies: – Analog: 1.5 V–1.95 V – Digital Core: 1.65 V–1.95 V – Digital I/O: 1.1 V–3.6 V – Class-D: 2.7 V–5.5 V (SPKVDD ≥ AVDD) 24-Pin QFN Package (4mm × 4mm) 1.2 Applications Portable Audio Devices White goods Portable Navigation Devices 1.3 Description The TAS2521 is a low power digital input speaker amp with support for 24-bit digital I2S data mono playback. In addition to driving a speaker amp upto 4-Ω, the device also features a mono headphone driver and a fully programmable miniDSP for signal processing. The digital audio data format is programmable to work with popular audio standard protocols (I2S, left/right-justified) in master, slave, DSP and T...