TAS5704

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Amplificador de audio de clase D con EQ de altavoz, DRC y control H/W, estéreo de 20 W, fuente de al

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document-pdfAcrobat 20-W Stereo Digital Audio Power Amplifier with Feedback datasheet (Rev. A) (Inglés)

TAS5704

ACTIVO

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Detalles del producto

Audio input type

Digital Input

Architecture

Class-D

Speaker channels (max)

4

Rating

Catalog

Power stage supply (max) (V)

26

Power stage supply (min) (V)

10

Load (min) (Ω)

4

Output power (W)

20

SNR (dB)

100

THD + N at 1 kHz (%)

0.05

Iq (typ) (mA)

33

Control interface

Hardware

Closed/open loop

Closed

Analog supply (min) (V)

3

Analog supply voltage (max) (V)

3.6

Sampling rate (max) (kHz)

192

PSRR (dB)

60

Operating temperature range (°C)

0 to 85

Audio input type

Digital Input

Architecture

Class-D

Speaker channels (max)

4

Rating

Catalog

Power stage supply (max) (V)

26

Power stage supply (min) (V)

10

Load (min) (Ω)

4

Output power (W)

20

SNR (dB)

100

THD + N at 1 kHz (%)

0.05

Iq (typ) (mA)

33

Control interface

Hardware

Closed/open loop

Closed

Analog supply (min) (V)

3

Analog supply voltage (max) (V)

3.6

Sampling rate (max) (kHz)

192

PSRR (dB)

60

Operating temperature range (°C)

0 to 85

HTQFP (PAP)

64

144 mm² 12 x 12

Audio Input/Output
- 20-W into an 8- Load From an 18-V Supply
- Two Serial Audio Inputs (Four Audio Channels)
- Supports Multiple Output Configurations:
  - 2-Ch Bridged Outputs (20 W × 2)
  - 4-Ch Single-Ended Outputs (10 W × 4)
  - 2-Ch Single-Ended + 1-Ch Bridged (2.1) (10 W × 2 + 20 W)
Closed Loop Power Stage Architecture
- Improved PSRR Reduces Power Supply Performance Requirements
- Higher Damping Factor Provides for Tighter, More Accurate
  Sound With Improved Bass Response
- Lower EMC Emissions
- Output Power is Independent of Supply Voltage Variation
Wide PVCC Range From (10 V to 26 V)
Supports 32-kHz–192-kHz (DVD-Audio) Sample Rates (LJ/RJ/I²S)
Line-Level Subwoofer PWM Outputs
Audio/PWM Processing (Hardware Controlled)
- 4-Step Gain Control (-3dB, 3dB, 9dB, 12dB)
- Soft Mute Control (50% Output Duty Cycle)
Factory-Trimmed Internal Oscillator Enables Automatic Detection of
Incoming Sample Rates
Thermal and Short-Circuit Protection

System Two, Audio Precision are trademarks of Audio Precision, Inc.

Audio Input/Output
- 20-W into an 8- Load From an 18-V Supply
- Two Serial Audio Inputs (Four Audio Channels)
- Supports Multiple Output Configurations:
  - 2-Ch Bridged Outputs (20 W × 2)
  - 4-Ch Single-Ended Outputs (10 W × 4)
  - 2-Ch Single-Ended + 1-Ch Bridged (2.1) (10 W × 2 + 20 W)
Closed Loop Power Stage Architecture
- Improved PSRR Reduces Power Supply Performance Requirements
- Higher Damping Factor Provides for Tighter, More Accurate
  Sound With Improved Bass Response
- Lower EMC Emissions
- Output Power is Independent of Supply Voltage Variation
Wide PVCC Range From (10 V to 26 V)
Supports 32-kHz–192-kHz (DVD-Audio) Sample Rates (LJ/RJ/I²S)
Line-Level Subwoofer PWM Outputs
Audio/PWM Processing (Hardware Controlled)
- 4-Step Gain Control (-3dB, 3dB, 9dB, 12dB)
- Soft Mute Control (50% Output Duty Cycle)
Factory-Trimmed Internal Oscillator Enables Automatic Detection of
Incoming Sample Rates
Thermal and Short-Circuit Protection

System Two, Audio Precision are trademarks of Audio Precision, Inc.

The TAS5704 is a 20-W, efficient, digital audio power amplifier for driving stereo bridge-tied speakers. Two serial data inputs allow processing of up to four discrete audio channels and seamless integration to most digital audio processors accepting a wide range of input data and clock rates. A hardware configurable data path allows these channels to be routed to the internal speaker drivers or output via the subwoofer PWM outputs.

The TAS5704 is a slave-only device receiving all clocks from external sources. The TAS5704 operates at a 384-kHz switching rate for 32-, 48-, 96-, and 192-kHz data, and at a 352.8 kHz switching rate for 44.1-, 88.2-, and 176.4-kHz data. The 8× oversampling combined with the fourth-order noise shaper provides a flat noise floor and excellent dynamic range from 20 Hz to 20 kHz.

The closed-loop architecture of the TAS5704 provides several benefits. The high power supply rejection enables superior audio performance from a noisy, low cost supply. The high damping factor allows tighter control over speaker movement resulting in an improved bass response. Finally, switching edge rate control lowers EMC emissions without sacrificing audio performance.

The TAS5704 is a 20-W, efficient, digital audio power amplifier for driving stereo bridge-tied speakers. Two serial data inputs allow processing of up to four discrete audio channels and seamless integration to most digital audio processors accepting a wide range of input data and clock rates. A hardware configurable data path allows these channels to be routed to the internal speaker drivers or output via the subwoofer PWM outputs.

The TAS5704 is a slave-only device receiving all clocks from external sources. The TAS5704 operates at a 384-kHz switching rate for 32-, 48-, 96-, and 192-kHz data, and at a 352.8 kHz switching rate for 44.1-, 88.2-, and 176.4-kHz data. The 8× oversampling combined with the fourth-order noise shaper provides a flat noise floor and excellent dynamic range from 20 Hz to 20 kHz.

The closed-loop architecture of the TAS5704 provides several benefits. The high power supply rejection enables superior audio performance from a noisy, low cost supply. The high damping factor allows tighter control over speaker movement resulting in an improved bass response. Finally, switching edge rate control lowers EMC emissions without sacrificing audio performance.

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Documentación técnica

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	Tipo	Título	Fecha
*	Data sheet	20-W Stereo Digital Audio Power Amplifier with Feedback datasheet (Rev. A)	19 ago 2010
	Application note	Using Thermal Calculation Tools for Analog Components (Rev. A)	30 ago 2019
	Application note	Guidelines for Measuring Audio Power Amplifier Performance (Rev. A)	26 ago 2019
	Application note	AN-1849 An Audio Amplifier Power Supply Design (Rev. C)	27 jun 2019
	Application note	AN-1737 Managing EMI in Class D Audio Applications (Rev. A)	01 may 2013
	Application note	Interfacing an I2S Device to an MSP430 Device (Rev. A)	22 mar 2010
	EVM User's guide	TAS5704EVM - User Guide	11 abr 2008

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TAS5704

Amplificador de audio de clase D con EQ de altavoz, DRC y control H/W, estéreo de 20 W, fuente de al

TAS5704

Detalles del producto

Documentación técnica

Diseño y desarrollo

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

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