Texas Instruments TAS2521
The TAS2521 is a low power digital input speaker amp with support for 24-bit digital I2S data mono playback. The digital audio data format is programmable to work with popular audio standard protocols (I2S, left/right-justified) in master, slave, DSP and TDM modes. The fully programmable miniDSP can support several functions such equalization for audio, multiband DRC, tone generation and several other user defined functions.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
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.