Texas Instruments TPA2008D2 manual Quick Start List for Platform, Platform preparations

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Quick Start List for Platform

2.2 Quick Start List for Platform

Follow these steps when using the TPA2008D2 EVM with the TI plug-n-play audio amplifier evaluation platform (see the platform user’s guide, literature number SLOU011, for additional details). Numbered callouts for selected steps are shown in Figure 2–2, and details appear in Chapter 3.

-Platform preparations

1)Ensure that all external power sources are set to OFF and that the platform power switch S1 is set to OFF.

2)Install a TPA2008D2 module in platform socket U2, taking care to align the module pins correctly.

3)Use switch S2 to select or bypass the signal conditioning EVM (U1).

4)Set control signal Polarity jumper JP8 to Lo.

5)Set jumper JP6 to select the Mute control input (causes the TPA2008D2 to shut down if a plug is inserted into platform headphone jack J10).

6)If a headphone amplifier will be installed in U5, set the headphone source switch S3 to U5.

Table 2–2. Platform Jumper and Switch Settings for the TPA2008D2

EVM

JP4

JP5

JP6

JP7

JP8

S2

S3

 

 

 

 

 

 

 

 

P-N-P Platform

X

ON

Mute

X

Lo

Note 2

U5

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

2)Set S2 to ON when signal conditioning board is installed in U1; set S2 to OFF when no signal conditioning board is installed.

-Power supply

7)Select and connect the power supply (ensure power supply is set to OFF ):

a)Connect an external regulated power supply set to 5 V to platform VDD power input connector J6 taking care to observe marked polarity,

or

b)Install a voltage regulator EVM (SLVP097 or equiv.) in platform socket

U6. Connect a 7-V12-V power source to a platform VCC power input J1 or J2 and jumper the appropriate power input (see platform user’s

guide). If using J1, J2, or B1, set S1 to ON to supply power to the EVM.

-Inputs and outputs

8)Ensure that the audio signal source level is set to minimum.

9)Connect the audio source to left and right RCA phono jacks J3 and J5 or stereo miniature phone jack J4.

10)Connect speakers to left and right RCA jacks J7 and J9 or to stripped wire speaker connectors J8.

Operation 2-3

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Contents User’s Guide Important Notice EVM Important Notice EVM Warnings and Restrictions Information About Cautions and Warnings PrefaceRelated Documentation From Texas Instruments Contents Tables FiguresIntroduction Feature Highlights Description To 5.5 TPA2008D2 EVM SpecificationsEVM JP4 JP5 JP6 JP7 JP8 OperationSupply Power PrecautionsPlatform preparations Quick Start List for PlatformEvaluation Module Preparations Quick Start List for Stand-AloneQuick Start for Stand-Alone Operation Power Requirements Operation Reference TPA2008D2 Filter-Free Class-D EVM Schematic Diagram TPA2008D2 EVM SchematicTPA2008D2 EVM PCB Layers TPA2008D2 EVM Top AssemblyTPA2008D2 EVM Parts List TPA2008D2 EVM Parts ListDC Volume Control DC Volume TableReference

TPA2008D2 specifications

The Texas Instruments TPA2008D2 is a highly efficient, integrated audio amplifier designed to meet the demands of a variety of audio applications. This device is particularly well-suited for portable electronic devices, such as smartphones, tablets, and portable speakers, where space and power efficiency are critical considerations.

One of the standout features of the TPA2008D2 is its Class-D architecture, which allows for greater efficiency compared to traditional Class-AB amplifiers. With a maximum output power of up to 3.2 W per channel when operating from a 5 V power supply, it delivers high-quality audio performance while minimizing heat generation. This efficiency is crucial for battery-operated devices, as it prolongs battery life while providing ample power for driving speakers.

The TPA2008D2 also boasts a low quiescent current, which further enhances its power efficiency. The device operates with a wide supply voltage range, from 2.5 V to 5.5 V, making it highly versatile for various applications. Its small size and low profile package make it easy to integrate into compact designs, allowing manufacturers to create sleek products without compromising on audio quality.

In addition to its impressive power efficiency, the TPA2008D2 features built-in protections, including over-temperature protection and short-circuit protection. These safety features provide reliability and longevity, ensuring that the device can withstand varying operating conditions without failure.

Another notable technology employed in the TPA2008D2 is its advanced feedback mechanism, which ensures optimal performance across various loads and helps maintain audio clarity and fidelity. The amplifier supports a variety of input types, providing flexibility for design engineers when integrating it into different systems.

The design of the TPA2008D2 includes differential inputs, which help to eliminate noise and improve the overall sound quality. The inclusion of a gain setting allows users to customize the amplifier to suit specific application requirements, making it an adaptable solution for designers.

In summary, the Texas Instruments TPA2008D2 is a feature-rich audio amplifier that combines power efficiency, compact size, and reliability, making it a perfect choice for portable audio applications. With its Class-D design, advanced protection features, and flexibility in input and gain options, it continues to be a favored solution among audio designers seeking high performance in a small package.