Datasheet > TAS2521IRGET

TAS2521IRGET

更新时间： 2024-11-24 12:27:07

品牌	Logo	应用领域
TAOS		放大器
页数	文件大小	规格书
35页	1094K
描述
Digital Input Class-D Speaker Amplifier with Embedded miniDSP and mono headphone amplifier

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TAS2521IRGET 数据手册

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

• Digital Input Mono Speaker Amp

1.2 Applications

• Instruction-Programmable Embedded miniDSP

• Supports 8-kHz to 192-kHz Sample Rates

• Mono Class-D BTL Speaker Driver (2 W Into

•

Portable Audio Devices

White goods

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

amp with support for 24-bit digital I2S data mono

playback.

• Embedded Power-on-Reset

• Integrated LDO

• Built-in Digital Audio Processing Blocks With

User-Programmable Biquad Filters

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 TDM

modes. The fully programmable miniDSP can support

several functions such equalization for audio, multi-

band DRC, tone generation and several other user

defined functions. An on-chip PLL provides the high-

speed clock needed by the digital signal-processing

block. The volume level can be controlled by register

control. The audio functions are controlled using the

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.

• 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)

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

specifications per the terms of the Texas Instruments standard warranty. Production

processing does not necessarily include testing of all parameters.

12 3 4 5 6 7...35

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