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QFN-24

更新时间： 2024-11-20 12:01:47

品牌	Logo	应用领域
德州仪器 - TI		放大器
页数	文件大小	规格书
34页	1090K
描述
Digital Input Class-D Speaker Amplifier with Audio Processing and mono headphone amplifier

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TAS2505

www.ti.com

SLAS778A –FEBRUARY 2013–REVISED FEBRUARY 2013

Digital Input Class-D Speaker Amplifier with Audio Processing and mono headphone

amplifier

Check for Samples: TAS2505

1 INTRODUCTION

1.1 Features

1.2 Applications

• Digital Input Mono Speaker Amp

•

Portable Audio Devices

White goods

• Supports 8-kHz to 96-kHz Sample Rates

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

Portable Navigation Devices

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

1.3 Description

The TAS2505 is a low power digital input speaker

amp with support for 24-bit digital I2S data mono

playback.

• Programmable Digital Audio Processing Blocks

for Bass Boost, Treble, EQ With up to Six

Biquads for Playback

In addition to driving a speaker amp upto 4-Ω, the

device also features a mono headphone driver and a

programmable digital-signal processing block. 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

programmable digital-signal processing block can

support Bass boost, treble, or EQ 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

• Integrated PLL Used for Programmable Digital

Audio Processing Blocks

• I²S, Left-Justified, Right-Justified, DSP, and

TDM Audio Interfaces

• I²C Control 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)

have

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.

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.

I²C is a trademark of NXP B.V. Corporation.

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...34

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