TPA102 Msop EVM | Texas Instruments TPA102 MSOP specification

The TPA102 MSOP Audio Power Amplifier Evaluation Module

3.2 The TPA102 MSOP Audio Power Amplifier Evaluation Module

The TPA102 MSOP audio power amplifier evaluation module is powered by a TPA102 150-mW stereo audio amplifier IC. It includes a shutdown control signal input with onboard switch and can drive either line-level outputs, 32-Ωheadphones, or 8-Ωspeakers.

The evaluation module can be used with the TI plug-n-play audio amplifier evaluation platform (Figure 3 –1) or wired directly into circuits or equipment. The module has single in-line header connector pins mounted to the under side of the board. These pins allow the module to be plugged into the TI platform, which automatically makes all the signal input and output, power, and control connections to the module.

The module connection pins are on 0.1-inch centers to allow easy use with standard perf board and plug board-based prototyping systems. Or, the EVM can be wired directly into existing circuits and equipment when used stand-alone.

The module appears in Figure 3–2 and its schematic is shown in Figure 3 –3.

Figure 3–2. TPA102 MSOP EVM

Shutdown

VDD GND

IN1 R1

GND

U1†

C3	R2
	R2
		C7


			R3 Vo1



			GND


			C5
			C5

C2				R4
	R5

	TEXAS
	INSTRUMENTS	GND
IN2	SLOP125	Vo2
GND	TPA102 MSOP EVM

†Due to the very small size of the MSOP IC package, the standard part number TPA102 is re- placed with the code TIAAC

Figure 3–3. TPA102 MSOP EVM Schematic Diagram

Audio Input 1

Shutdown

(VDD to

Shutdown)

Audio Input 2

20 kΩ

Bypass

IN 1

1 ∝ F

80 kΩ

Vo1

VDD

GND

TPA102

MSOP

VDD

2.5 to 5.5 V

Shutdown

VDD

1 ∝ F

10 ∝

GND

20 kΩ

IN 2

Vo2

1 ∝

20 kΩ

R4, 80 kΩ

Details

3-3

TPA102 MSOP specifications

The Texas Instruments TPA102 is a highly efficient class-D audio amplifier designed specifically for portable applications, making it an ideal choice for devices like smartphones, tablets, and other battery-operated electronics. One of its standout features is its ability to deliver powerful output while maintaining a small footprint, thanks to its MSOP (Micro Small Outline Package) design. This compact packaging allows designers to implement the TPA102 in space-constrained environments without sacrificing performance.

A key characteristic of the TPA102 is its efficient power consumption. The amplifier is capable of delivering substantial output power with minimal distortion, which is critical for ensuring high-quality audio playback. It supports a wide range of supply voltages, typically from 2.5V to 5.5V, making it versatile for various applications. With a typical output power of 1W into an 8-ohm load, the TPA102 excels in delivering clean audio signal without considerable heat generation, which is particularly beneficial in battery-powered devices where thermal management can be a challenge.

The TPA102 incorporates several innovative technologies that contribute to its performance. One such technology is the elimination of output filter components, which simplifies the design and reduces the overall cost. Additionally, the device features integrated protection mechanisms that prevent overheating and short-circuiting, thereby enhancing reliability. This combination of efficiency and durability makes the TPA102 suitable for rugged and demanding audio applications.

Another impressive aspect of the TPA102 is its low total harmonic distortion (THD), which ensures that the audio signal remains clear and true to the original input. Coupled with an excellent signal-to-noise ratio, the TPA102 is designed to provide an immersive listening experience in various audio setups.

Moreover, the TPA102 supports multiple operating modes, including shutdown mode that significantly reduces power consumption when the device is not in use. This feature is especially beneficial in portable applications where battery life is a crucial consideration.

In summary, the Texas Instruments TPA102 MSOP audio amplifier stands out for its compact size, efficient power consumption, and high-quality audio output. With advanced features and robust protection mechanisms, it is a reliable choice for designers seeking to develop cutting-edge audio solutions in portable devices.