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Texas Instruments TPA0202 manual 2.1 S1 Ð Shutdown Jumper, 2.2 S2 Ð Mute Switch

Models: TPA0202

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Using The TPA0202 EVM With the Plug-N-Play Evaluation Platform

3.3.2.1S1 Ð Shutdown Jumper

To have the module amplifier IC enter the shutdown mode when the module mute control input is activated, set shutdown jumper S1 to ON.

The mute control output pin on the TPA0202 amplifier IC follows the mute control input pin and is buffered. Jumper S1 connects the mute output pin to the shutdown control input pin of the IC so that when S1 is ON, the IC is forced into shutdown mode instead of mute mode when the mute control input goes high. When S1 is OFF, a pulldown resistor on the module holds the IC shutdown control input pin low, keeping the IC out of the shutdown mode.

The shutdown mode reduces IC current consumption to approximately 5 μA compared to approximately 1.5 mA in the mute mode. It takes longer, however, to resume normal operation from the shutdown mode (approx. 1 s to 2 s) than it takes to resume normal operation from the mute mode (approx. 100 ms to

500ms).

3.3.2.2S2 Ð Mute Switch

Pushbutton switch S2 on the TPA0202 EVM allows manual muting of the amplifier IC.

3.3.2.3S3 Ð Input Select Jumper

To select the line inputs, set input select jumper S3 to OFF. To select the headphone inputs, set input select jumper S3 to ON.

The TPA0202 amplifier IC has two separate inputs for each channel. An internal multiplexor selects which input will be connected to the amplifier based on the state of the HP/LINE pin on the IC. However, the EVM HP/L* control input pin is not directly controlled by anything on the platform Ð the platform socket for that module pin is N/C. The amplifier IC HP/LINE control pin can be tied high manually via jumper S3 or connected to the amplifier IC SE/BTL control pin via jumper S6 so that it follows that control signal.

For manual control, jumper S3 connects the HP/L* module control input pin to VDD, so that when S3 is ON, the headphone inputs are selected. When S3 is OFF, a pulldown resistor on the module holds the IC shutdown control input pin low, selecting the line inputs.

3.3.2.4S4 Ð Output Mode Jumper

To keep the module amplifier IC in the single-ended output mode regardless of the module control input state, set jumper S4 to ON.

Jumper S4 connects the SE/BTL output mode control input pin on the amplifier IC directly to VDD, so that when S4 is ON, the IC is held in the single-ended output mode regardless of the state of the SE/BTL* module control input. When S4 is OFF, a pulldown resistor on the module holds the IC output mode control input pin low, keeping the IC in the BTL output mode.

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Texas Instruments TPA0202 manual 2.1 S1 Ð Shutdown Jumper, 2.2 S2 Ð Mute Switch, 2.3 S3 Ð Input Select Jumper
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TPA0202 specifications

The Texas Instruments TPA0202 is a high-performance Class-D audio amplifier designed for a variety of portable audio applications. Renowned for its efficiency and sound quality, the TPA0202 is an ideal choice for battery-operated devices such as mobile phones, tablet computers, and other handheld devices. With the continuous push for better audio experiences in compact formats, the TPA0202 stands out with its impressive specifications and features.

One of the key characteristics of the TPA0202 is its power efficiency. Operating at a high efficiency rate of up to 90%, this Class-D amplifier minimizes heat generation, allowing it to deliver more power to the audio output while extending battery life. This efficiency is especially crucial for portable devices, where battery performance is a key consideration.

The TPA0202 supports an output power of 2 watts per channel into 4 ohms, making it capable of driving small speakers or headphones with excellent sound quality. The device features a built-in differential input stage that enhances noise immunity, thereby ensuring cleaner audio reproduction. It also supports a wide supply voltage range from 3V to 5.5V, contributing to its versatility in different applications.

In terms of audio quality, the TPA0202 boasts low total harmonic distortion (THD) and exceptional linearity, resulting in rich, clear audio output. Additionally, it comes equipped with selectable gain settings, allowing designers to tailor the amplifier to various output requirements and system designs.

The amplifier also integrates various protection features, including thermal shutdown, short-circuit protection, and undervoltage detection, ensuring robust operation under different conditions. The TPA0202 is also simple to implement in designs, with a minimal external component requirement, further enhancing its appeal to engineers seeking quick and efficient solutions for audio amplification needs.

Moreover, the compact package size of the TPA0202 allows for easy integration into space-constrained designs. With its combination of high efficiency, excellent audio quality, and protective features, the Texas Instruments TPA0202 continues to be a compelling choice for developers looking to enhance audio performance in portable and battery-operated devices. Whether for consumer electronics or in more specialized applications, the TPA0202 delivers reliable and impressive sound amplification, making it a go-to component for modern audio solutions.