on December 26th 8,232

Everything You Need to Know About the TDA2822M Amplifier

The TDA2822M is a dual low-voltage power amplifier designed for portable audio devices like radios, cassette players, and multimedia speakers. It operates within a wide voltage range, making it flexible for different uses. Its simple design and efficient performance make it an ideal choice for high-quality audio applications.

Catalog

Introduction to TDA2822M Amplifier

The TDA2822M is a dual low-voltage power amplifier designed for compact audio devices like radios, cassette players, and multimedia speakers. Housed in an 8-pin Minidip package, it operates across a broad voltage range of 1.8 to 15 volts, making it versatile for different applications.

This amplifier is easy to use and delivers excellent audio quality with low static current and minimal distortion, making it ideal for portable, battery-powered devices. Its reliable and efficient design makes it a popular choice for high-quality audio amplification in various projects.

Pinout Details for TDA2822M

Pin No.	Pin Name	Pin Description
1	Output 1	Output 1 of the IC to drive a speaker
2	Vcc	Positive Supply Connection of the IC
3	Output 2	Output 2 of the IC to drive a speaker
4	Ground (GND)	Ground / Negative For Both Amplifiers
5	Input 2 (+)	Inverting Input 2 of the IC
6	Input 2 (-)	Non-Inverting 2 Input of IC
7	Input 1 (+)	Non-Inverting Input 1 of IC
8	Input 2 (-)	Inverting Input 1 of the I

CAD Design for TDA2822M

TDA2822M Symbol

TDA2822M Footprint

TDA2822M 3D Model

Circuit Design Using TDA2822M

Schematics Diagram

Test Circuit in Stereo Mode

Test Circuit in Bridge Mode

Typical Application in Portable Players

Low-Cost Application in Portable Players

3V Stereo Cassette Player with Motor Speed Control

Key Features of TDA2822M

• Operates on a 3-15V supply, working as low as 1.8V.

• Delivers 3.2W output power for clear audio.

• Supports 8-ohm speaker loads.

• Offers a 39 dB gain for strong signal boosting.

• Requires only 12 mA operating current.

• Features a low input bias current of 0.1 µA.

• Provides 40 dB power supply noise reduction.

• Minimal crossover distortion ensures smooth audio.

• Configurable in bridge or stereo modes.

• Available in DIP-8 or SOP-8 packages.

Specifications of TDA2822M Amplifier

Parameter	Value
Class	Class-AB
Output Power	2 W
Mounting Style	Through Hole
Type	1-Channel Mono or 2-Channel Stereo
Package / Case	PDIP-8
Audio - Load Impedance	32 Ohms
THD plus Noise	0.20%
Supply Voltage - Max	15 V
Supply Voltage - Min	1.8 V
Minimum Operating Temperature	-40°C
Maximum Operating Temperature	+150°C
Packaging	Tube
Brand	STMicroelectronics
Description/Function	Headphone/Speaker
Gain	39 dB
Ib - Input Bias Current	100 nA
Input Type	Single
Length	10.92 mm
Number of Channels	2 Channel
Operating Supply Current	1 A
Operating Supply Voltage	3 V, 5 V, 9 V, 12 V
Output Current	1 A
Output Signal Type	Differential, Single
Pd - Power Dissipation	1.4 W
Product Type	Audio Amplifiers
PSRR - Power Supply Rejection Ratio	40 dB
Height	3.32 mm

Applications of TDA2822M in Audio Systems

Amplifying Audio in Radios

The TDA2822M is ideal for amplifying audio signals in radios. It enhances the clarity and volume of sound, ensuring you enjoy a better listening experience without distortion or noise.

Enhancing Audio Output in Computer Systems

You can use the TDA2822M to improve the audio output of your computer. It boosts the sound quality, making your multimedia activities like watching movies or playing games more immersive.

Powering Audio in Toys

This amplifier is well-suited for use in toys. It provides sufficient power to small speakers, making sounds louder and clearer, which is especially useful for interactive and musical toys.

Enriching the Sound Experience in Battery-Operated Music Players

The TDA2822M works efficiently in battery-powered devices like portable music players. It optimizes audio output while maintaining low power consumption, ensuring longer battery life and consistent sound quality.

Low-Power Audio Amplification Needs

This chip is versatile and can handle a variety of low-power audio amplification tasks. Whether for simple gadgets or custom audio projects, it provides a reliable solution for clear and amplified sound.

Guidelines for Using TDA2822M

The diagram above demonstrates how the TDA2822M IC can be used as an audio amplifier. It is commonly set up as a mono amplifier, but its design also allows for creating stereo amplifier circuits. The circuit works efficiently with a voltage range between 3 and 15 volts DC, making it flexible for various applications.

A 10K variable resistor is an important part of this setup. It connects to the audio input points and links them to the audio source you wish to amplify. For the audio output, an 8-ohm speaker is connected between Pin 1 and Pin 3 of the IC, ensuring clear and amplified sound.

To keep the IC performing reliably, there are a few precautions you should follow. Always ensure the voltage does not exceed 15 volts to avoid damage. Protect the IC from short circuits, and carefully check all wiring connections before powering it on. When soldering, handle the IC carefully to avoid overheating it. To prevent issues with polarity, connect the power correctly or include a diode for protection. Lastly, store and use the IC within a temperature range of -40 to +150 degrees Celsius to maintain its durability and performance.

Equivalent Options for TDA2822M

• KA2209

• KA2209B

• S1A2209A01-D0B0

• LM380

• NJM2073

Benefits of Using TDA2822M Amplifier

Low Distortion and Noise

The TDA2822M ensures clean audio output with minimal distortion and noise. This makes it a great choice when you need high-quality sound without unwanted interference or disturbances.

Built-In Thermal and Short-Circuit Protection

This amplifier comes with thermal and short-circuit protection, which helps safeguard the IC and connected components. It ensures long-lasting performance and reliable operation, even in challenging conditions.

Simple Design with Minimal Components

The TDA2822M features a straightforward design that requires only a few external components. This simplicity makes it easier for you to integrate into your projects, saving time and effort during assembly.

Adjustable Gain Control

You can adjust the gain of the amplifier to suit your specific audio requirements. This flexibility allows you to fine-tune the audio output for different applications without compromising performance.

Ideal for Portable Audio Devices

Its low power consumption and compact size make the TDA2822M perfect for portable audio devices. Whether it’s a battery-operated speaker or a handheld music player, this amplifier performs efficiently without draining the battery quickly.

Dual-Channel for Stereo Sound

The dual-channel configuration allows the IC to support stereo sound. This feature enhances the audio experience by providing a more immersive and balanced output for your devices.

Operates on Low Voltage and Current

The amplifier is designed to work with low voltage and current, making it compatible with a wide range of low-power devices. This helps in building energy-efficient systems that maintain excellent audio quality.

Easy and Compact Design

The TDA2822M's compact size and ease of use simplify integration into your projects. Whether you are a beginner or an experienced builder, this IC offers convenience and reliability without complicating the design process.

Maximum Ratings of TDA2822M

Symbol	Parameter	Value	Unit
Vs	Supply Voltage	15	V
Io	Peak Output Current	1	A
Ptot	Total Power Dissipation at Tamb = 50°C	1	W
	Total Power Dissipation at Tcase = 50°C	1.4	W
Tstg, Tj	Storage and Junction Temperature	-40, +150	°C

Manufacturer Information for TDA2822M

The TDA2822M is produced by STMicroelectronics (STM or STMicro), a globally recognized leader in semiconductor solutions. STMicroelectronics specializes in creating a wide range of microelectronics products, combining expertise in silicon design and system integration.

The company is known for its advanced manufacturing capabilities and extensive Intellectual Property (IP) portfolio, allowing it to develop innovative products. STMicroelectronics is a key player in System-on-Chip (SoC) technology, supporting trends that drive modern technology convergence. Their solutions are widely used across various industries, ensuring reliability and quality in all their offerings.