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Operation

Table 1. Gain Settings

GAIN1 (J13) (1)

GAIN0 (J12) (1)

Amplifier Gain (dB)

ON

ON

20

ON

OFF

26

OFF

ON

32

OFF

OFF

36

(1)OFF = Jumper removed; ON = Jumper installed

2.1.2.3Control Outputs

1.FAULT: This pin is a TTL compatible output for reporting a short-circuit fault on the output. If the

outputs are shorted to GND, VCC, or to each other, this terminal goes high and remains high until one of the following operations is performed: power is cycled, SHUTDOWN is cycled, or MUTE is cycled. If jumper J11 is installed, the MUTE terminal is connected directly to the FAULT terminal and a short-circuit fault is automatically cleared when it occurs.

2.1.3Power Up

1.Verify correct voltage and input polarity and turn the external power supplies on. The EVM should begin operation.

2.Adjust the input signal.

3.Adjust the control inputs to the desired settings.

4.If no sound is audible, check the position of the MSTR/SLV (J14) jumper. It should be removed if evaluating a single EVM.

5.Adjust the amplifier gain by installing/removing the gain jumpers, J12 and J13.

4

TPA3100D2 Audio Power Amplifier Evaluation Module With LC Filter

SLOU179 –December 2005

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Texas Instruments TPA3100D2 manual Gain Settings, Power Up

TPA3100D2 specifications

The Texas Instruments TPA3100D2 is a highly efficient Class-D audio amplifier designed for a variety of applications including televisions, soundbars, and other multimedia devices. This device exemplifies cutting-edge technology in audio amplification, combining high-performance sound quality with an impressive power output and energy efficiency.

One of the standout features of the TPA3100D2 is its high output power capability. It can deliver up to 15 watts per channel into a 4-ohm load, making it suitable for driving mid-range speakers and subwoofers in consumer audio products. With an operating voltage range from 8 to 24 volts, the amplifier can support diverse system architectures, providing flexibility in design and application.

The TPA3100D2 incorporates several advanced technologies that enhance its performance. Notably, it utilizes the efficient Class-D architecture, which converts DC power into amplified audio signals with minimal heat generation. This ensures that more power is used for the audio signal rather than wasted as heat, leading to improved energy efficiency and reliability in long-running applications.

Additionally, the device features a built-in patient feedback loop that optimizes the sound quality across various input conditions. This technology significantly reduces distortion, allowing the TPA3100D2 to deliver clearer and more accurate sound reproduction. It also boasts a unique speaker protection system that helps to prevent damage during operation by monitoring the output signals and adjusting the amplifier's performance accordingly.

The TPA3100D2 supports advanced audio features such as digital volume control and automatic gain control, enabling designers to create versatile audio systems that meet diverse user needs. Its low total harmonic distortion (THD) rating assures sound fidelity, while high power supply rejection ratio (PSRR) minimizes the impact of power supply noise, ensuring a purer audio signal.

The compact package design of the TPA3100D2 makes it easy to integrate into tight spaces within consumer electronics, facilitating innovative product designs. Furthermore, it is supported by comprehensive design resources, including evaluation modules and software, which assist engineers in optimizing their designs for maximum performance.

In summary, the Texas Instruments TPA3100D2 is a powerful and efficient Class-D amplifier tailored for modern audio applications, offering exceptional sound quality, advanced protection features, and flexible design options. Its integration of innovative technologies not only enhances audio performance but also promotes energy efficiency, making it an ideal choice for a variety of audio amplification needs.