TPA701D

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Class AB
Output Type:	1-Channel (Mono)
Max Output Power x Channels @ Load:	700mW x 1 @ 8 Ohm
Voltage - Supply:	2.5 V ~ 5.5 V
Features:	Short-Circuit and Thermal Protection, Shutdown
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Base Part Number:	TPA701

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TPA701D Application Field and Working Principle

The TPA701D is a linear audio amplifier with wide range of applications. It is most commonly used in audio output stages and video cards and is known for its low noise and low distortion operation. The TPA701D is also used in professional audio applications such as recording studios, video mixing and editing, gaming audio processing, automotive audio systems and more.

Features

The TPA701D features ultra-wideband frequency response, low distortion, low noise, and low power consumption. It has built-in protection against over-currents and short circuits, as well as temperature protection from thermal runaway. This amplifier is also designed to work with a wide variety of audio devices, such as digital-to-analog (D/A) converters, and it supports both analog and digital input signals. The high input and output impedance of the TPA701D makes it ideal for powering loads from low-source resistance and can be daisy-chained for greater output.

Working Principle

The TPA701D follows the same principles of operation as any other Class AB amplifier, but it takes the concept one step further by allowing for a wider range of input and output levels. By allowing for a wide range of input levels, the amplifier is capable of providing higher output power while still maintaining low distortion and low noise.The TPA701D operates on a push-pull principle such that the polarity of the inputs and outputs are always opposite. When an audio signal enters the amplifier, it is split into two halves and applied to the base of transistors in the same polarity. The transistors then amplify the signal and output the amplified signal to the emitter and into the speaker.The gain of the amplifier is determined by the amount of input voltage given to the base of the transistors. The amount of current given to the base is regulated by a bias resistor, which acts as a variable resistance. The resistance can be tuned to give the desired gain.

Conclusion

The TPA701D is an audio amplifier that provides high quality sound with low distortion and low noise. It is simple to implement, making it a great option for audio output stages and video cards. The amplifier also has a wide range of applications including recording studios, video mixing, gaming audio processing, automotive audio systems, and more. It operates on a push-pull principle with the polarity of the inputs and outputs always opposite and can be daisy-chained for increased output. The amplifier also features temperature protection and over-current protection. Thanks to its wide range of features and compact size, the TPA701D is a popular choice for many audio applications.

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