Quick Start List for Platform | Texas Instruments TPA0243 specs

2.2 Quick Start List for Platform

Follow these steps when using the TPA0243 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 TPA0243

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 TPA0243 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

TPA0243 specifications

The Texas Instruments TPA0243 is an advanced class-D audio amplifier that is recognized for its high-performance capabilities and compact design. Specifically designed for portable applications, the TPA0243 delivers impressive sound quality while maximizing energy efficiency. Its compact footprint makes it suitable for a variety of consumer electronics, including mobile devices, tablets, and laptops.

One of the standout features of the TPA0243 is its ability to output up to 3.2 watts of continuous power per channel into a 4-ohm load. This level of power is sufficient for driving small speakers or external audio systems, making it an ideal choice for portable speaker designs. The amplifier also supports operation with a supply voltage range of 2.5V to 5.5V, further enhancing its versatility in different applications.

The TPA0243 utilizes sophisticated technologies to ensure high fidelity audio performance. It includes integrated thermal overload protection and short-circuit protection, which safeguards the device from damage under adverse conditions. Furthermore, the low standby current draw of 2 µA contributes to longer battery life in portable applications, making it energy-efficient.

In addition to its robust performance, the amplifier features low total harmonic distortion (THD) and a signal-to-noise ratio (SNR) of up to 90 dB, ensuring clear audio reproduction. The TPA0243 has a high power supply rejection ratio (PSRR), which helps minimize the impact of power supply variations on audio performance.

The amplifier also supports a variety of output configurations, including stereo and mono options, offering design flexibility for engineers. Its built-in gain setting allows for easy integration into diverse applications, ensuring that it can meet the demands of various output requirements.

Overall, the Texas Instruments TPA0243 stands out as a reliable and versatile audio amplifier, combining compactness with robust performance features. With its integration of advanced technologies, efficient power consumption, and superior sound quality, it is an optimal choice for designers looking to enhance the audio experience in portable electronic devices.