TPA0102PWPR Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Class AB
Output Type:	2-Channel (Stereo) with Stereo Headphones
Max Output Power x Channels @ Load:	1.5W x 2 @ 4 Ohm
Voltage - Supply:	3 V ~ 5.5 V
Features:	Input Multiplexer, Mute, Shutdown
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Supplier Device Package:	24-HTSSOP
Package / Case:	24-TSSOP (0.173", 4.40mm Width) Exposed Pad
Base Part Number:	TPA0102

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TPA0102PWPR application field and working principle

The TPA0102PWPR is a bidirectional demodulator amplifier, amplifying both positive and negative half-cycles in an audio signal during amplification. In the audio field, it is used to improve the sound output on audio systems such as car stereos, personal media devices, headsets, etc. It is designed for stereo audio applications, and its typical operating voltage range is from 2.2 V to 5.5 V at an output power of up to 1 W.

Application field

The TPA0102PWPR Audio Amplifier is an integrated Class D amplifier designed for portability, space-efficiency and ease of use. It is a bidirectional demodulating amplifier, which amplifies both positive and negative half-cycles in an audio signal during amplification. This allows for excellent stereo separation and dynamic range. The amplifier has been designed to provide improved sound output for cell phones, personal media players, headphones, home stereo systems and car stereo systems.

Working Principle

The TPA0102PWPR Class D audio amplifier works on the principle of demodulation. A pre-defined frequency is set to correspond to a particular signal and its harmonic components within the audio signal. The signal is amplified through the pre-defined frequency and its harmonics until it reaches an optimal peak power. The amplifier then shifts the balanced audio signal to a stereo signal using multiplexing technology. The stereo signal is then amplified using the bidirectional modulation technique and filtered accordingly. The bidirectional demodulation technique allows the amplifier to eliminate distortion caused by one side of the signal dominating over the other side. This makes for a more accurate and stable output signal. In addition, this technique also reduces the intensity of any hum and noise created by the signal. The amplifier has integrated thermal protection, allowing it to prevent overheating and reduce the likelihood of damage to the amplifier circuitry. This is especially beneficial when the amplifier is being used in a demanding environment such as a car stereo system. Furthermore, the amplifier features a low quiescent current draw, which helps increase efficiency and reduce battery runtime.Overall, the TPA0102PWPR is a highly effective audio amplifier. Its low power consumption, improved signal clarity, and integrated thermal protection make it a preferred choice for many audio applications. With its flexibility and efficient operation, it is a great option for mobile audio devices and car stereo systems.

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