Texas Instruments TPA005D12 manual Power Requirements, JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8

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Power Requirements

3.4.5Power Requirements

The TPA005D12 class-D stereo audio power amplifier evaluation module is designed to operate from a supply voltage between 4.5 V and 5.5 V. For best performance (highest output power with lowest distortion), the module should be operated at 5 V.

The TI plug-n-play audio amplifier evaluation platform provides several options for powering the TPA005D12 class-D EVM. Table 3±3 shows the platform jumper and switch settings for each power source option (see the User's Guide for the TI plug-n-play audio amplifier platform, TI Literature Number SLOU011 for more information). The TPA005D12 class-D EVM requires no setup for power source selection.

Table 3±3. Platform Jumper and Switch Settings for the TPA005D12 EVM Power Inputs

POWER TYPE (Note 2)

JP1

JP2

JP3

JP4

JP5

JP6

JP7

JP8

S1

S2

S3

 

 

 

 

 

 

 

 

 

 

 

 

VCC (J1)

ON

OFF

OFF

ON

ON

Mode

X

Hi

ON

Note 3

U5

 

 

 

 

 

 

 

 

 

 

 

 

AC/DC (J2)

OFF

ON

OFF

ON

ON

Mode

X

Hi

ON

Note 3

U5

 

 

 

 

 

 

 

 

 

 

 

 

Battery (B1)

OFF

OFF

ON

ON

ON

Mode

X

Hi

ON

Note 3

U5

 

 

 

 

 

 

 

 

 

 

 

 

VDD (J6)

OFF

OFF

OFF

X

ON

Mode

X

Hi

ON

Note 3

U5

Notes: 1) ON = Jumper installed, OFF = Jumper NOT Installed, X = Don't care

2)Unregulated and battery sources must have a voltage regulator EVM (SLVP097) installed in platform socket U6.

3)Set to ON when Tone Control Board SLOP109 is installed in U1, otherwise set to OFF..

Although the TPA005D12 amplifier IC draws approximately 0.7 A per channel from the power supply during continuous full power output, peak current draw can be as high as 1.15 A per channel. Any power supply connected to the platform should be capable of providing 2.3 A to avoid clipping of the output signal during voltage peaks. Current consumption driving speakers at normal listening levels is typically 0.1 A or less.

A VDD supply of 5 V is required if a signal processing EVM is installed in platform socket U1 or a separate headphone amplifier EVM is installed in U5. VDD can either be applied to the platform VDD power input terminals (J6) or a voltage regulator (SLVP097 or equiv.) can be installed in platform socket U6 to provide VDD from the platform VCC supply.

The platform is equipped with overvoltage and reverse-polarity supply voltage input protection in the form of fused crowbar circuits.

-VDD voltage applied to platform screw terminals J6 MUST NOT exceed the absolute maximum rating for the TPA005D12 amplifier IC installed on

the evaluation module (5.5 V) or damage to the IC may result. In no case

should VDD voltage of the incorrect polarity or in excess of 6.0 V be applied to screw terminals J6 of the platform, or the power protection circuit on the VDD line will trip.

-VCC voltage applied to the platform MUST NOT exceed the maximum voltage input specified for the voltage regulator module installed in socket

U6 (12 V for the SLVP097), or damage to the voltage regulator module

may result. In no case should VCC voltage applied to the platform exceed 15 V, or the overvoltage protection circuit on the VCC bus will trip.

3-16

Details

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Contents Users Guide Important Notice Preface Related Documentation From Texas InstrumentsPage Contents Figures TablesIntroduction Feature Highlights Description TPA005D12 Class-D EVM Specifications MaximumTypical Quick Start OFFPrecautions Audio PowerQuick Start List for Platform Platform PreparationsQuick Start List for Stand-Alone Details ±1. The TI Plug-N-Play Audio Amplifier Evaluation Platform TPA005D12 Class-D Audio Power Amplifier Evaluation Module TP9 GND VDD2 1 TPA005D12 Class-D Stereo Audio Amplifier IC TP3±5. Class-D Functional Diagram Overview of Class-D Audio Amplifiers±6. Class-D Input and Output Waveforms Bridge-Tied Load BTL OperationControl and Indicator Circuits Class-D Differential Inputs6 TPA005D12 Class-D EVM Test Points ±2. TPA005D12 Class-D EVM Test PointsClass-D Amplifier Design Considerations Installing and Removing EVM Boards EVM InsertionEVM Removal Module Switches 2.2 S2 Ð Mute Switch2.1 S1 Ð Shutdown Signal Routing Signal ConditioningHeadphone Output Jack Headphone Jack Control Signals ShutdownMute/Mode Select JP6 Mute/Mode Polarity Select JP8Power Requirements JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8Inputs and Outputs InputsOutputs Monitor Controls and Indicators Input ConnectionsOutput Connections TPA005D12 Class-D EVM Performance Characteristics ±11. Class-D Amplifier Frequency Response at 4 Ω±12. Class-D Amplifier Distortion versus Output Power at 4 Ω ± % Crosstalk Frequency TPA005D12 Class-D EVM Interconnects TPA005D12 Class-D EVM Bill of Materials ±5. TPA005D12 Class-D EVM Bill of MaterialsTPA005D12 Class-D EVM Schematic ±18. TPA005D12 Class-D EVM Schematic Diagram±19. TPA005D12 Class-D EVM Top Assembly 10 TPA005D12 Class-D EVM PCB Layers±21. TPA005D12 Class-D EVM Top Layer ±23. TPA005D12 Class-D EVM Third Layer Details

TPA005D12 specifications

The Texas Instruments TPA005D12 is a highly regarded digital audio power amplifier that is engineered for high-performance applications. It is part of TI's TPA series, which is known for its efficient power delivery and superior sound quality. The TPA005D12 is designed to drive passive speakers while ensuring minimal power loss and efficient heat management.

One of the standout features of the TPA005D12 is its ability to provide 5 watts of continuous output power per channel into an 8-ohm load with a low total harmonic distortion (THD) rating. This makes it suitable for use in a variety of audio applications, including computer speakers, soundbars, and portable audio systems. The amplifier operates from a single supply voltage, ranging typically from 4.5V to 14V, allowing for flexible integration into different power supply environments.

The TPA005D12 adopts Class-D amplification technology, which significantly enhances power efficiency compared to traditional linear amplifiers. Class-D amplifiers convert the input audio signal into a series of pulse-width modulated signals, resulting in increased power savings and reduced heat generation. This not only improves the overall energy efficiency but also contributes to a longer operational lifespan for devices utilizing this technology.

Additionally, the TPA005D12 features an integrated thermal and short-circuit protection mechanism, which helps safeguard the amplifier from potential damage due to excessive temperatures or electrical faults. This reliability factor is crucial for manufacturers looking to create robust consumer electronics.

Another important characteristic is its integrated low-noise power supply rejection ratio (PSRR), which helps maintain sound clarity and reduces the impact of power supply noise on audio quality. The TPA005D12 also supports differential input signals, which can improve common-mode noise rejection and further enhance audio performance.

The device is offered in a compact package suitable for space-constrained applications, enabling easy integration into various designs. With a combination of low cost, high efficiency, and excellent audio performance, the Texas Instruments TPA005D12 stands out as a top choice for developers and engineers seeking reliable audio amplification solutions. Whether in home entertainment systems or personal audio devices, the TPA005D12 is designed to deliver exceptional sound quality with a minimal footprint.
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