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PRB_P2 Datasheet(PDF) 1 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS |
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PRB_P2 Datasheet(HTML) 1 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS |
1 / 35 page 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 1.2 Applications • Instruction-Programmable Embedded miniDSP • Portable Audio Devices • Supports 8-kHz to 192-kHz Sample Rates • White goods • Mono Class-D BTL Speaker Driver (2 W Into • Portable Navigation Devices 4 Ω or 1.7 W Into 8 Ω) • Mono Headphone Driver 1.3 Description • Two Single-Ended Inputs With Output Mixing and Level Control The TAS2521 is a low power digital input speaker • Embedded Power-on-Reset amp with support for 24-bit digital I2S data mono • Integrated LDO playback. • Built-in Digital Audio Processing Blocks With In addition to driving a speaker amp upto 4- Ω, the User-Programmable Biquad Filters device also features a mono headphone driver and a • Integrated PLL Used for Programmable Digital fully programmable miniDSP for signal processing. Audio Processor The digital audio data format is programmable to • I2S, Left-Justified, Right-Justified, DSP, and work with popular audio standard protocols (I2S, TDM Audio Interfaces left/right-justified) in master, slave, DSP and TDM • I2C and SPI control with auto-increment modes. The fully programmable miniDSP can support • Full Power-Down Control several functions such equalization for audio, multi- • Power Supplies: band DRC, tone generation and several other user – Analog: 1.5 V–1.95 V defined functions. An on-chip PLL provides the high- – Digital Core: 1.65 V–1.95 V speed clock needed by the digital signal-processing – Digital I/O: 1.1 V–3.6 V block. The volume level can be controlled by register – Class-D: 2.7 V–5.5 V (SPKVDD ≥ AVDD) control. The audio functions are controlled using the • 24-Pin QFN Package (4mm × 4mm) I2C™ serial bus or SPI bus. The device includes an on-board LDO that runs off the speaker power supply to handle all internal device analog and digital power needs. The included POR as power-on-resetcircuit reliably resets the device into its default state so no external reset is required at normal usage; however, the device does have a reset pin for more complex system initialization needs. The device also includes two analog inputs for mixing and muxing in both speaker and headphone analog paths. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to Copyright © 2013, Texas Instruments Incorporated specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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