TDA7297SA

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Type:	Class AB
Output Type:	2-Channel (Stereo)
Max Output Power x Channels @ Load:	10W x 2 @ 8 Ohm
Voltage - Supply:	6.5 V ~ 18 V
Features:	Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 70°C (TA)
Supplier Device Package:	15-Clipwatt
Package / Case:	Clipwatt-15 (Vertical, Bent and Staggered Leads)
Base Part Number:	TDA7297

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TDA7297SA Application Field and Working Principle

The TDA7297SA is an audio amplifier used for boosting audio signals. It is a type of linear amplifier which sets itself apart from other amplifiers by providing a wide range of audio applications. This article will provide an overview of the application field and working principle of the TDA7297SA.The TDA7297SA is a two-channel, stereo audio power amplifier from Texas Instruments. It is a high-efficiency and low-cost amplifier which is suitable for a wide range of audio products, including portable media players and multimedia systems. This amplifier is capable of delivering up to 4W power output into 4 ohms load. It has an integrated thermal protection circuit which prevents the amplifier from suffering any thermal damage. It also has a low-noise design and supports various audio standards such as DVD-A, DVD-V, Dolby Digital Plus, and DTS HD.This power amplifier utilizes Direct Path technology, which eliminates capacitor noise, improves performance, and eliminates the need for external components. This technology also helps to reduce system size, further increasing the cost savings of the TDA7297SA amplifier.The working principle of the TDA7297SA begins with the audio signal being received by the low-resistor-controlled input stage. This input stage amplifies the signal and then sends it to a power controller that limits the signal to the predetermined value. After the signal has been limited, it is sent to the Direct Path stage which amplifies the signal using an advanced state variable filter. The amplified signal is then sent to the speaker via a linear output stage.The direct path stage is the key factor behind the amplifier\'s audio performance. It uses an advanced state variable filter that is based on the fact that a signal should pass through a linear stage with minimal suppression of the higher order harmonics and low distortion. This helps to maintain the original sound quality of the audio signal.Overall, the TDA7297SA is an affordable and powerful audio amplifier that is suitable for a wide range of audio applications. Its direct path technology also helps to ensure a clearer, more accurate sound from the amplifier, making it an excellent choice for audio-based products.

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