TAS2770

DSBGA (YFF)

30

6 mm² 2.047 x 2.559

VQFN-HR (RJQ)

26

14 mm² 4 x 3.5

High-Performance Mono Class-D Amplifier
- 20-W at 1% THD+N (4 Ω, 16 V)
- 15.4-W at 1 % THD+N (4 Ω, 12.6 V)
0.03 % THD+N at 1 W (4 Ω, VBAT = 12.6 V)
32-µVrms A-Weighted Idle Channel noise
90-dB PSRR with 200 mV_PP Ripple at 20 - 20 kHz
82.5% Efficiency at 1 W (4 Ω, VBAT = 12.6 V)
< 1 µA HW Shutdown VBAT Current
42 mW / 63 mW Idle Dissipation (8.4 V / 12.6 V)
Speaker Voltage and Current Sense
Real-Time Diagnostics Using I/V Speaker Sense
- Over Current
- Short Circuit(short to power, short to ground and terminal-to-terminal short)
- Over-Temperature
VBAT Tracking Peak Voltage Limiter with Brown Out Prevention
44.1-kHz to 192-kHz Sample Rates
Flexible User Interfaces
- I²S/TDM: 8 Channels (32-bit / 96 kHz)
- I²C: 8 selectable Addresses
MCLK Free Operation
Low Pop and Click
Power Supplies
- VBAT: 4.5 V to 16 V
- AVDD: 1.8 V
Spread-Spectrum Low EMI Mode
Thermal and Over Current Protection

High-Performance Mono Class-D Amplifier
- 20-W at 1% THD+N (4 Ω, 16 V)
- 15.4-W at 1 % THD+N (4 Ω, 12.6 V)
0.03 % THD+N at 1 W (4 Ω, VBAT = 12.6 V)
32-µVrms A-Weighted Idle Channel noise
90-dB PSRR with 200 mV_PP Ripple at 20 - 20 kHz
82.5% Efficiency at 1 W (4 Ω, VBAT = 12.6 V)
< 1 µA HW Shutdown VBAT Current
42 mW / 63 mW Idle Dissipation (8.4 V / 12.6 V)
Speaker Voltage and Current Sense
Real-Time Diagnostics Using I/V Speaker Sense
- Over Current
- Short Circuit(short to power, short to ground and terminal-to-terminal short)
- Over-Temperature
VBAT Tracking Peak Voltage Limiter with Brown Out Prevention
44.1-kHz to 192-kHz Sample Rates
Flexible User Interfaces
- I²S/TDM: 8 Channels (32-bit / 96 kHz)
- I²C: 8 selectable Addresses
MCLK Free Operation
Low Pop and Click
Power Supplies
- VBAT: 4.5 V to 16 V
- AVDD: 1.8 V
Spread-Spectrum Low EMI Mode
Thermal and Over Current Protection

The TAS2770 is a mono, digital input Class-D audio amplifier optimized for efficiently driving small loudspeakers . The output power, protection features and packages make TAS2770 a good choice for Smart speakers, Bluetooth speakers, home automation devices, Notebook computers and tablets.

The Class-D amplifier is capable of delivering 20W of continuous power into a 4-Ω load at 16V and 15W into an 8-Ω load at 16V both at 1% THD. The broad voltage input range of 4.5-16V and the high output power makes this amplifier versatile enough to work with battery power or with line powered systems

A Brown-Out preventer tracks peak voltage and automatically self-limits the gain to the voltage available. This hardware implemented feature reduces the amplifier’s demand on system power preventing both audio cut out and system shutdown

The TAS2770 can be used as a conventional amp or with host based speaker protection algorithms. The integrated speaker voltage and current sense provides for real time feedback of loudspeaker conditions to the protection algorithms through a return I2S path.

Up to eight devices can share a common bus via either I²S/TDM + I²C.

The TAS2770 device is available in a 26-pin, 0.4-mm pitch QFN for a compact PCB footprint.

The TAS2770 is a mono, digital input Class-D audio amplifier optimized for efficiently driving small loudspeakers . The output power, protection features and packages make TAS2770 a good choice for Smart speakers, Bluetooth speakers, home automation devices, Notebook computers and tablets.

The Class-D amplifier is capable of delivering 20W of continuous power into a 4-Ω load at 16V and 15W into an 8-Ω load at 16V both at 1% THD. The broad voltage input range of 4.5-16V and the high output power makes this amplifier versatile enough to work with battery power or with line powered systems

A Brown-Out preventer tracks peak voltage and automatically self-limits the gain to the voltage available. This hardware implemented feature reduces the amplifier’s demand on system power preventing both audio cut out and system shutdown

The TAS2770 can be used as a conventional amp or with host based speaker protection algorithms. The integrated speaker voltage and current sense provides for real time feedback of loudspeaker conditions to the protection algorithms through a return I2S path.

Up to eight devices can share a common bus via either I²S/TDM + I²C.

The TAS2770 device is available in a 26-pin, 0.4-mm pitch QFN for a compact PCB footprint.

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To request access to PurePath™ Console 3 and other design resources: Request TAS2770

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Technical documentation

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	Type	Title	Date
*	Data sheet	TAS277020-W Digital Input Mono Class-D Audio Amplifier with Speaker I/V Sense datasheet (Rev. C)	20 Dec 2018
	Technical article	How smart amps are bringing high-fidelity audio into the smart home	03 May 2021
	Application note	Current and Voltage Sensing Accuracy and Linearity	21 Jul 2020
	Application note	Limitations of Capacitor only EMI Filters on Class-D Amplifiers	21 Jul 2020
	Application note	Requesting Access to Audio Software	18 Jun 2020
	User guide	SmartAmp Learning Board 2 User's Guide (Rev. A)	13 Sep 2019
	Application note	Guidelines for Measuring Audio Power Amplifier Performance (Rev. A)	26 Aug 2019
	Application note	PCB Layout Guidelines for TAS2xxx Series Class-D Non-boosted Audio Amplifier	27 Jun 2019
	Application note	Passive Component Selection Guide for Class-D Audio Amplifier	27 Jun 2019
	Application note	Battery Voltage Tracking Limiter and Brown-Out Protection	26 Jun 2019
	Application note	PLL and Clocking Configuration for Audio Devices	26 Mar 2019
	Application note	Features of TAS2770 high efficiency Class-D amplifier with I/V sense	23 Jan 2019
	Application note	How the SmartAmp Speaker Protection Algorithm Compensates the Effects of Series	08 Aug 2018
	Application note	SmartPA Speaker Protection Algorithm	06 Aug 2018
	Technical article	Smart speakers don’t have to sound as small as they are	04 Jun 2018
	Technical article	Don’t limit your audio: how to achieve loud sound from a small speaker	18 Dec 2017
	User guide	TAS2770 Evaluation Module User's Guide	10 Dec 2017
	User guide	TAS2700YFF Evaluation Module User's Guide	02 Nov 2017
	User guide	TAS2770EVM-Stereo User's Guide	15 Sep 2017
	Application note	Smart Amp Tuning Guide	05 Sep 2017
	Application note	Smart Amp Quick Start Guide	03 Aug 2017
	Application note	AN-1737 Managing EMI in Class D Audio Applications (Rev. A)	01 May 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TAS2770EVM — TAS2770EVM Mono, Digital Input, Class-D, IV Sense Audio Amplifier Evaluation Module for QFN Package

The TAS2770EVM provides developers with a simple to use mono evaluation module that can be configured as a stereo solution and as a multi-channel solution. It is powerful tool kit for assessing stereo and mono implementations of the TAS2770 with or without IV sense. Everything needed for evaluating (...)

User guide

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Evaluation board

TAS2770EVM-STEREO — Stereo Evaluation Module of the TAS2770 Digital Input, Class-D, IV Sense Audio Amplifier

The TAS2770EVM-Stereo evaluation module provides developers with a simple to use module pre-configured in as a stereo solution. It is powerful tool kit for assessing stereo or mono implementations of the TAS2770 with or without IV sense. Everything needed for evaluating TAS2770 as a conventional (...)

User guide

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Evaluation board

TAS2770YFFEVM — TAS2770YFFEVM Mono, Digital Input, Class-D, IV Sense Audio Amp Evaluation Module for WCSP Package

The TAS2770YFFEVM provides developers with a simple to use mono evaluation module that can be configured as a stereo solution and as a multi-channel solution. It is powerful tool kit for assessing stereo and mono implementations of the TAS2770 with or without IV sense. Everything needed for (...)

User guide

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Limit: 1

Application software & framework

PUREPATHCONSOLE — PurePath™ Console graphical development suite for audio system design and development

PurePath™ Console is a highly integrated and easy-to-use audio development suite designed specifically to simplify the evaluation, configuration and debug process associated with the development of audio products. Watch how easy it is to use the PurePath™ Console 3 software.
PurePath Console’s (...)

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Driver or library

TAS2XXX-DRIVERS — Android and other drivers for the TAS25XX and TAS27XX series of Class-D amplifiers

These Android drivers support TI’s low power digital input Class-D audio amplifier devices. The "Get software" buttons link to git.ti.com repositories for these open-source drivers.

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Simulation model

TAS2770 IBIS Model

SLAM324.ZIP (54 KB) - IBIS Model

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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)

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Reference designs

TIDA-01572 — Stereo Evaluation Module Reference Design of the Digital Input, Class-D, IV Sense Audio Amplifier

This reference design provides a high-performance stereo audio subsystem for use in PC applications. It operates off a single supply, ranging from 4.5 V to 16 V, and features the TAS2770, a digital-input Class-D audio amplifier that provides excellent noise and distortion performance and is (...)