TDA2822M Dual Low-voltage Audio Power Amplifier: Datasheet, Pinout and Circuit
Update Time: 2023-11-29 13:44:40
In the realm of audio electronics, clear and powerful sound is non-negotiable. Whether you're building a portable speaker, a headphone amplifier, or a simple audio project, the choice of amplifier can make or break your audio experience. Enter the TDA2822M, a dual low-voltage audio power amplifier that brings the magic of sound to life. In this article, we will embark on a journey to explore the world of the TDA2822M, understanding its features, pinout, circuit, datasheet, applications, more details about the TDA2822M amplifier, and why it's a favorite among audio enthusiasts.
What is TDA2822M Amplifier?
The TDA2822M is a dual low-voltage power amplifier, residing within an 8-Dip Minidip monolithic integrated circuit. Its purpose is to serve as a dual audio power amplifier, catering to the needs of portable tape players, radios, cassette players, recorders, and multimedia active speakers. This versatile chip presents several notable advantages, including minimal static current consumption, reduced crossover distortion, and a notably wide power supply voltage spectrum spanning from 1.8 to 15V. Within this operational span, it demonstrates the capability to produce reasonably high output power. The TDA2822M prides itself on its straightforwardness, delivering excellent audio quality across its extensive voltage range. As such, it emerges as a flexible and dependable choice for an array of audio-related applications.
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 IC
TDA2822M Amplifier Circuit
TDA2822M Schematics Diagram
TDA2822M Amplifier Test Circuit in Stereo Mode
TDA2822M Amplifier Test Circuit in Bridge Mode
TDA2822M Typical Application in Portable Players
TDA2822M Low-Cost Application in Portable Players
TDA2822M 3V Stereo Cassette Player with Motor Speed Control
Supply Voltage Range: 3-15V, capable of functioning down to 1.8V.
Output Power: Delivers 3.2 Watts.
Audio Load Impedance: Designed for 8 Ohms.
Gain: Offers a 39 dB gain.
Operating Supply Current: Requires a mere 12 mA.
Input Bias Current: Ib is exceptionally low at 0.1 uA.
Power Supply Rejection Ratio: Achieves 40 dB in PSRR.
Low Crossover Distortion
Minimal Quiescent Current
Configurable in Bridge or Stereo Mode
Package Options: Available in both the dual in-line 8-pin plastic package (DIP-8) and surface-mount (SOP-8) package formats.
Amplifying audio in radios.
Enhancing audio output in computer systems.
Powering audio in toys.
Enriching the sound experience in battery-operated music players.
Utilized as a versatile solution for various low-power audio amplification needs.
How to Use TDA2822M
TDA2822M Circuit Diagram
The diagram displayed above illustrates the utilization of the TDA2822M IC as an audio amplifier. Initially configured as a mono audio amplification circuit, it's pertinent to acknowledge the IC's versatility in the creation of stereo amplifier circuits. This specific circuit operates efficiently within a voltage spectrum spanning from 3 to 15 volts DC.
At the core of this setup, the 10K variable resistor assumes a pivotal role. It serves to establish a connection with the designated audio input points, subsequently linked to the audio source earmarked for amplification. For audio output, an 8 Ohm impedance speaker is connected between Pin 1 and Pin 3 of the IC.
In order to ensure sustained and dependable IC performance, several precautions must be observed. It is imperative to refrain from subjecting the IC to voltages exceeding 15V. The IC should be shielded against short circuits, and prior to the application of power, a meticulous verification of wiring connections is essential. During soldering, it is critical to exercise due care, preventing the IC from exposure to excessive heat. To avoid polarity-related issues, the IC should be powered correctly or safeguarded with the incorporation of a diode between the IC and the power supply. Additionally, it is advisable to store and operate the IC within a temperature range of -40 to +150 degrees Celsius.
TDA2822M Equivalents and Alternatives
KA2209, KA2209B, S1A2209A01-D0B0, TDA2822M, LM380, NJM2073 are can replace for TDA2822M.
S1A2209A01-D0B0: This is a specific part number that may represent a compatible replacement for the TDA2822M.
LM380: The LM380 is a versatile audio amplifier IC that can be used as a substitute for the TDA2822M.
NJM2073: The NJM2073 is a dual audio amplifier IC that offers similar characteristics to the TDA2822M.
Advantages of TDA2822M
Low distortion, low noise
Thermal, short-circuit protection
Simple design, minimal components
Adjustable gain control
Portable audio use
Dual-channel for stereo
Low voltage, current
Easy, minimal design
Absolute Maximum Ratings
TDA2822M is manufactured by STM, STMicroelectronics(ST or STMicro), a prominent international semiconductor enterprise, excels in the creation and provision of semiconductor solutions spanning a wide spectrum of microelectronics applications. Distinguished by an unparalleled fusion of silicon and system proficiencies, robust manufacturing capabilities, a rich Intellectual Property (IP) portfolio, and strategic alliances, STMicroelectronics occupies a leading position in the realm of System-on-Chip (SoC) technology. The company's array of products assumes a pivotal role in facilitating the prevailing trends of convergence in today's technology landscape.
Download the TDA2822M Datasheet PDF.
- What is the difference between TDA2822 and TDA2822M?
TDA2822M functions within a voltage range of 3V to 15V, whereas the maximum operational voltage for TDA2822 is limited to 8V. You can explore more details about TDA2822 in this guide.
- What is the use of TDA2822M?
TDA2822M is designed to serve as a dual audio power amplifier in applications such as portable radios and cassette players.
- What is the input voltage of TDA2822M?
TDA2822M typically operates within the voltage range of 0.3V to VCC (the supply voltage).
- What type of circuit is the TDA2822M?
TDA2822M is a monolithic circuit.
- Can the IC TDA2822L and TDA2822M be directly replaced?
The operational voltage range for TDA2822L is 1.8-12V, and for TDA2822M, it's 1.8-15V. Apart from this voltage difference, their specifications remain identical. These two ICs are interchangeable within their respective voltage ranges. If your radio operates within a 9V range, they can be used as direct replacements. Always ensure that the power supply voltage matches before making the switch.
- What does BTL mean on an amplifier?
BTL stands for Bridge Tied Load. It involves the connection of both speaker terminals in reverse using two amplifier circuits, as opposed to a conventional single amplifier.
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