TDA2004R

Overview

Product Category

TDA2004R belongs to the category of integrated circuits (ICs) specifically designed for audio amplification.

Use

The TDA2004R is primarily used in audio systems to amplify low-power audio signals, such as those from a microphone or a line-level source, to a level suitable for driving speakers.

Characteristics

• Power Output: The TDA2004R can deliver up to 10 watts of power, making it suitable for small to medium-sized audio applications.
• Low Distortion: It offers low harmonic distortion and high signal-to-noise ratio, ensuring high-quality audio reproduction.
• Wide Frequency Response: The IC has a wide frequency response range, typically from 20 Hz to 20 kHz, enabling accurate reproduction of audio signals across the audible spectrum.
• Thermal Protection: The TDA2004R incorporates thermal protection circuitry to prevent damage due to excessive heat.
• Single Supply Operation: It can operate with a single supply voltage, typically ranging from 8V to 18V, making it compatible with various power sources.

Package and Quantity

The TDA2004R is available in a standard 5-pin TO-220 package. It is commonly sold individually or in packs of multiple units.

Specifications

• Supply Voltage Range: 8V to 18V
• Output Power: Up to 10W
• Total Harmonic Distortion: <0.5%
• Signal-to-Noise Ratio: >70 dB
• Frequency Response: 20 Hz to 20 kHz
• Operating Temperature Range: -40°C to +150°C

Pin Configuration

The TDA2004R features a 5-pin configuration:

1. Vs (Supply Voltage): Connect this pin to the positive terminal of the power supply.
2. GND (Ground): Connect this pin to the ground or negative terminal of the power supply.
3. IN- (Negative Input): Connect the audio input signal's negative terminal to this pin.
4. IN+ (Positive Input): Connect the audio input signal's positive terminal to this pin.
5. OUT (Output): Connect the speaker or load to this pin.

Functional Features

1. High Gain: The TDA2004R offers a high voltage gain, allowing it to amplify weak audio signals effectively.
2. Low Distortion: It ensures minimal distortion in the amplified audio signal, resulting in faithful sound reproduction.
3. Thermal Protection: The IC incorporates thermal protection circuitry, preventing damage from excessive heat buildup.
4. Short-Circuit Protection: It includes built-in short-circuit protection, safeguarding the IC and connected components from damage in case of a short circuit.
5. Wide Supply Voltage Range: The TDA2004R can operate within a wide range of supply voltages, providing flexibility in various audio system designs.

Advantages and Disadvantages

Advantages

• High-quality audio amplification with low distortion.
• Thermal and short-circuit protection ensure reliability and safety.
• Wide frequency response for accurate audio reproduction.
• Single supply operation simplifies power supply requirements.

Disadvantages

• Limited power output suitable for small to medium-sized audio applications.
• Requires external components for a complete audio amplifier circuit.

Working Principles

The TDA2004R operates as a class AB audio amplifier. It amplifies the input audio signal by using a combination of pre-amplification, voltage amplification, and power amplification stages. The pre-amplification stage adjusts the input signal level, while the voltage amplification stage increases the signal amplitude. Finally, the power amplification stage drives the speaker or load with sufficient power to produce audible sound.

Application Field Plans

The TDA2004R finds applications in various audio systems, including: 1. Portable audio devices such as MP3 players and portable radios. 2. Car audio systems for amplifying audio signals from head units or other sources. 3. Home audio systems, including stereo receivers and mini-component systems. 4. Public address (PA) systems for amplifying speech or music in public venues. 5. Multimedia speakers for computers and gaming consoles.

Alternative Models

Other alternative models that can be used as substitutes for the TDA2004R include: - TDA2003: A similar IC with a lower power output of up to 10 watts. - LM386: A popular audio amplifier IC suitable for low-power applications. - TDA2030: A higher-power audio amplifier IC capable of delivering up to 20 watts.

In conclusion, the TDA2004R is an integrated circuit designed for audio amplification. With its low distortion, wide frequency response, and thermal protection, it offers high-quality audio amplification for various applications in the consumer electronics industry.