TDA2822M Audio Amplifier: Datasheet, Pinout, Equivalent, Voltage and Circuit

7월 14, 2023

2820

The TDA2822M is a monolithic integrated circuit designed for audio applications. It comes in an 8-lead Minidip package, making it suitable for compact electronic devices such as portable cassette players and radios. The main purpose of the TDA2822M is to serve as a dual audio power amplifier, delivering amplified audio signals to the speakers or headphones. Its dual-channel configuration, low voltage operation, decent power output, and low distortion characteristics make it a popular choice for many audio applications.

Catalog

TDA2822M Specification

TDA2822M PDF Datasheet

TDA2822M Pinout

TDA2822M Equivalent or Replacement

TDA2822M Audio Amplifier Circuit

TDA2822M Input Voltage

TDA2822M Features

TDA2822M Applications

TDA2822M Schematic Diagram

TDA2822M CAD Model

TDA2822M Specification

More Information: https://www.censtry.com/product/st/tda2822m-.html

Specification	Value
Supply Voltage (VCC)	1.8V to 15V
Power Output	Up to 1W per channel
Total Harmonic Distortion	< 0.1% at rated output power
Frequency Response	20Hz to 20kHz
Input Sensitivity	~150mV
Input Impedance	~30kΩ
Standby Current	~0.3mA
Thermal Protection	Built-in
Package Type	8-lead Minidip

TDA2822M PDF Datasheet

https://www.st.com/resource/en/datasheet/cd00000134.pdf

TDA2822M Pinout

TDA2822M Pinout.png

Pin	Pin Name	Pin Description
1	Output 1	This pin is the output for Channel 1 of the IC and is used to drive a speaker or headphones connected to the positive terminal of the audio output for the first channel.
2	Vcc	This pin is the positive supply connection for the IC. It is connected to the positive terminal of the power supply voltage, typically ranging from 1.8V to 15V. This pin provides the necessary power for the operation of the IC.
3	Output 2	This pin is the output for Channel 2 of the IC and is used to drive a speaker or headphones connected to the positive terminal of the audio output for the second channel.
4	Ground (Gnd)	This pin is the ground or negative terminal for both amplifiers within the IC. It is connected to the ground reference of the circuit to complete the electrical circuit and provide a common reference point.
5	Input 2 (+)	This pin is the inverting input for Channel 2 of the IC. It is one of the input terminals for the second audio channel and is used for the audio signal input. The input signal at this pin is typically in the form of a voltage.
6	Input 2 (-)	This pin is the non-inverting input for Channel 2 of the IC. It is the complementary input terminal to Pin 5 and together forms the input differential amplifier for the second audio channel. The input signal at this pin is also in the form of a voltage.
7	Input 1 (+)	This pin is the non-inverting input for Channel 1 of the IC. It is one of the input terminals for the first audio channel and is used for the audio signal input. The input signal at this pin is in voltage form.
8	Input 1 (-)	This pin is the inverting input for Channel 1 of the IC. It is the complementary input terminal to Pin 7 and together forms the input differential amplifier for the first audio channel. The input signal at this pin is also in the form of a voltage.

TDA2822M Equivalent / Replacement

KA2209

KA2209B

S1A2209A01-D0B0

LM386

NJM2073

TDA2822

PAM8403

MC34119

TDA2822M Audio Amplifier Circuit

This basic circuit demonstrates a single-ended configuration for one channel of the TDA2822M IC. To implement stereo audio amplification, a similar circuit can be replicated for the second channel using the remaining pins (OUT2, IN2, and GND). It is essential to consult the datasheet of the TDA2822M IC for additional information on recommended component values, input impedance, output power, and any additional circuitry requirements for optimal performance.

Power Supply: The circuit is powered by a +12V supply voltage connected to the VCC pin (Pin 8) of the TDA2822M IC. The GND pin (Pin 4) is connected to the ground (GND) reference of the circuit.

Input Signals: The audio input signals are connected to IN1 (Pin 7) and IN2 (Pin 5) of the IC. These input pins are usually connected to a source such as an audio player or a microphone.

Coupling Capacitor: Capacitor C1 (10μF) is used for DC blocking and coupling purposes. It is connected between the audio input source and the input pins IN1 and IN2 of the IC.

Output Connections: The amplified audio output signals are obtained from OUT1 (Pin 1) and OUT2 (Pin 3) of the IC. These pins are connected to the positive terminals of the speakers or headphones.

Ground Connection: The GND pin (Pin 4) of the IC is connected to the ground reference of the circuit. It provides a common ground connection for both the amplifier and the audio source.

Basic Circuit Diagram for An Audio Amplifier Using the TDA2822M IC

TDA2822M Audio Amplifier Circuit.png

TDA2822M Input Voltage

The TDA2822M IC has a wide range of acceptable input voltage levels. The recommended input voltage for the TDA2822M is typically between 0.3V and VCC (supply voltage). It is important to note that the input voltage should not exceed the supply voltage (VCC) specified for the IC. Consulting TDA2822M datasheet is highly recommended for input voltage specifications.

To achieve the best performance and avoid distortion, it is advisable to ensure that the input voltage is within the specified range and matches the desired operating conditions. Additionally, it is important to consider the input impedance of the TDA2822M, which is typically around 30 kΩ.