Quick Start List for Platform | Texas Instruments TPA0253 specs

2.2 Quick Start List for Platform

Follow these steps when using the TPA0253 EVM with the TI plug-n-play audio amplifier evaluation platform (see the platform user's guide, SLOU011, for additional details). Table 2±1 shows typical platform jumper and switch settings and numbered callouts for selected steps appear in Figure 2±1.

Table 2±1. Platform Jumper and Switch Settings for the TPA0253

EVM	JP6	JP7	JP8	S2	S3

P-N-P Platform	Mode	X	Hi	Note 2	X
Notes: 1) 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.

-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 TPA0253 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 Mode/Mute jumper JP6 to Mode and Polarity jumper JP8 to Hi.

-Power supply

5)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,

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

U6. Connect a 7 V ± 12 V power source to a platform VCC power input J1 or J2 and jumper the appropriate power input (see platform user's

guide).

-Inputs and outputs

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

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

8)Connect the speaker to the right RCA jack J7 or to the stripped wire speaker connector J8. Make sure the speaker is connected to the Right + and ± terminals.

-Power-Up

9)Verify correct voltage and input polarity and set the external power supply

to ON. If VCC and an onboard regulator EVM are used to provide VDD, set platform power switch S1 to ON.

Platform LED2 should light indicating the presence of VDD, and the evaluation modules installed on the platform should begin operation.

10)Adjust the signal source level or adjust potentiometers R2 and R4 on the EVM as needed.

2-3

TPA0253 specifications

Texas Instruments TPA0253 is a cutting-edge audio amplifier designed for high-performance audio applications, particularly in compact devices like soundbars, televisions, and portable speakers. As part of Texas Instruments' extensive range of audio solutions, the TPA0253 stands out due to its unique blend of power efficiency, sound quality, and the ability to drive loudspeakers directly from low-voltage supply rails.

One of the main features of the TPA0253 is its high efficiency, which can reach up to 92%. This is particularly important for battery-powered devices, as it helps extend battery life while delivering powerful audio performance. The device operates in class-D mode, which minimizes power loss through heat dissipation and allows for a more compact design without the need for bulky heat sinks.

The TPA0253 supports a wide range of power supply voltages, typically from 5V to 26V, making it versatile for different applications. With an output power rating of up to 2 x 15W at 4 ohms and the ability to drive up to 8 ohms loads, it can easily fill small to medium-sized spaces with high-quality sound.

In terms of technology, the TPA0253 features a fully differential architecture, enhancing the common-mode rejection ratio (CMRR) and improving noise performance. This allows for cleaner audio signals and enhances the overall sound quality, which is critical for achieving high-fidelity playback.

Additionally, the TPA0253 includes integrated protection features such as thermal shutdown and short-circuit protection, ensuring reliable operation and longevity in various environments. It also supports a variety of input configurations, compatible with different audio sources, making it a highly flexible solution for designers.

The device employs a PWM modulation scheme and includes a built-in phase-locked loop for clock generation, which contributes to its excellent performance at various frequencies. The low total harmonic distortion (THD) and high signal-to-noise ratio (SNR) further ensure that the TPA0253 delivers clear and dynamic audio playback.

To sum up, the Texas Instruments TPA0253 is an exceptional audio amplifier that combines efficiency, power, and sound quality in a small package. With its comprehensive set of features and robust protection mechanisms, it meets the demands of modern audio applications, making it a preferred choice for manufacturers in the competitive audio market.