TDA7490L

Product Overview

Use

It is primarily used for amplifying audio signals in various electronic devices such as speakers, home theater systems, and audio receivers.

Characteristics

TDA7490L is a class D amplifier, known for its high efficiency and low power consumption.
It operates on a single power supply voltage, making it suitable for portable and battery-powered applications.
The chip supports stereo output, allowing for the amplification of both left and right audio channels.
It offers excellent audio quality with low distortion and noise levels.
TDA7490L has built-in protection features like over-temperature, over-current, and short-circuit protection.

Package and Quantity

TDA7490L is available in a compact and industry-standard package, such as a 20-pin PowerSSO. It is commonly sold individually or in reels containing multiple units.

Specifications

Supply Voltage: 10V - 36V
Output Power: Up to 50W per channel
Efficiency: Up to 90%
Total Harmonic Distortion (THD): <0.1%
Signal-to-Noise Ratio (SNR): >100dB
Operating Temperature Range: -40°C to +85°C

Pin Configuration

The TDA7490L integrates various pins for different functionalities. Here is a detailed pin configuration:

Mute/Standby
Right Channel Input Positive (+)
Right Channel Input Negative (-)
Left Channel Input Negative (-)
Left Channel Input Positive (+)
GND (Ground)
VCC (Power Supply)
Right Channel Output Negative (-)
Right Channel Output Positive (+)
Left Channel Output Positive (+)
Left Channel Output Negative (-)
Right Channel Feedback
Left Channel Feedback
Thermal Pad
Over-Temperature Protection
Over-Current Protection
Short-Circuit Protection
VCC (Power Supply)
GND (Ground)
Mute/Standby

Functional Features

High Efficiency: TDA7490L's class D architecture ensures efficient power conversion, minimizing energy wastage.
Low Power Consumption: It operates on a low supply voltage, making it suitable for battery-powered devices.
Excellent Audio Quality: The chip delivers high-fidelity audio reproduction with minimal distortion and noise.
Built-in Protection: TDA7490L incorporates various protection mechanisms to safeguard against temperature, current, and short-circuit issues.
Stereo Output: It supports stereo amplification, enabling the creation of immersive audio experiences.

Advantages and Disadvantages

Advantages

High efficiency leads to reduced power consumption.
Compact package size allows for easy integration into various electronic devices.
Excellent audio quality enhances the overall listening experience.
Built-in protection features ensure the safety and longevity of the amplifier.

Disadvantages

Limited output power compared to higher wattage amplifiers.
May require additional components for advanced audio processing or equalization.

Working Principles

TDA7490L utilizes a class D amplifier topology, which employs pulse-width modulation (PWM) techniques to amplify audio signals efficiently. It converts the input analog audio signal into a digital PWM waveform, which is then amplified by switching the power supply on and off rapidly. This process reduces power dissipation and increases overall efficiency.

Application Field Plans

TDA7490L finds applications in various audio-related fields, including: 1. Portable Bluetooth speakers 2. Home theater systems 3. Car audio systems 4. Multimedia soundbars 5. Audio receivers and amplifiers

Alternative Models

Here are some alternative models that offer similar functionality to TDA7490L: 1. TPA3116D2 2. STA516B 3. IRS2092S 4. TAS5613A 5. MAX9744

These alternatives can be considered based on specific requirements, such as output power, features, or cost.

In conclusion, TDA7490L is a class D audio amplifier integrated circuit widely used in various electronic devices. Its high efficiency, compact package, and excellent audio quality make it a popular choice among audio enthusiasts and manufacturers alike.

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10 pirs û bersivên hevpar ên têkildarî sepana TDA7490L di çareseriyên teknîkî de navnîş bikin

Sure! Here are 10 common questions and answers related to the application of TDA7490L in technical solutions:

Q: What is TDA7490L? A: TDA7490L is a class-D audio amplifier integrated circuit (IC) that can be used to amplify audio signals in various applications.
Q: What is the power output of TDA7490L? A: TDA7490L can deliver up to 100 watts of power per channel, making it suitable for medium-sized audio systems.
Q: Can TDA7490L be used in stereo systems? A: Yes, TDA7490L is designed to work in stereo configurations, providing two channels of amplification.
Q: Does TDA7490L require an external power supply? A: Yes, TDA7490L requires an external power supply with a voltage range of 10V to 36V DC.
Q: Can TDA7490L drive low-impedance speakers? A: Yes, TDA7490L can drive speakers with impedance as low as 4 ohms, allowing flexibility in speaker selection.
Q: Does TDA7490L have built-in protection features? A: Yes, TDA7490L includes protection features like over-temperature, over-current, and short-circuit protection to ensure safe operation.
Q: Can TDA7490L be used in portable audio devices? A: Yes, TDA7490L's compact size and low power consumption make it suitable for use in portable audio devices like Bluetooth speakers.
Q: Is TDA7490L compatible with digital audio sources? A: Yes, TDA7490L can accept both analog and digital audio inputs, making it compatible with various audio sources.
Q: Can TDA7490L be used in automotive audio systems? A: Yes, TDA7490L's wide voltage range and robust design make it suitable for use in automotive audio applications.
Q: Are there any application notes or reference designs available for TDA7490L? A: Yes, the manufacturer of TDA7490L provides application notes and reference designs that can help in implementing the IC in different technical solutions.

Please note that these answers are general and may vary depending on specific implementation requirements.