3W Stereo Audio Amplifier using TDA7266D
https://www.electronics-lab.com/3w-stereo-audio-amplifier-using-tda7266d/
Tiny stereo audio amplifier board has been designed around SMD TDA7266D IC from ST. The TDA7266D is a dual bridge amplifier specially designed for Portable Audio, LCD TV/Monitor, PC Motherboard, and TV applications. This circuit provides high quality audio output of 3W approx. on each channel with standard audio signal input. The circuit works with […]
F1200 Low-noise Digital IF VGA with FlatNoise
https://www.electronics-lab.com/f1200-low-noise-digital-if-vga-with-flatnoise/
The F1200 of an IDT is a digitally controlled intermediate frequency differential variable gain amplifier that adjusts the gain either dynamically or as a one-time channel gain setting. The device has extremely low noise figure over the entire gain control range. It is packaged in compact 5×5 Thin QFNs with 200 ohm differential input and […]
LM386 SMD Audio Amplifier Module
https://www.electronics-lab.com/lm386-smd-audio-amplifier-module/
The Tiny Audio Amplifier MODULE is a good choice for battery operation. It is based on LM386 IC, useful in various applications like robotics, science projects, intercom, FM radio and many more. Specifications Power Supply 6V-9V 300mW Output @ 8Ohms Load On Board Potentiometer for Audio Level Adjust Header Connecter for Supply, Signal in and […]
Tutorial on the Theory, Design and Characterization of a CMOS Transimpedance Amplifier
https://www.electronics-lab.com/tutorial-on-the-theory-design-and-characterization-of-a-cmos-transimpedance-amplifier/
In this episode, Shahriar and Shayan discuss the design and characterization of a deceptively simple CMOS inverter-based transimpedance amplifier. The the large and small signal behavior of the CMOS inverter is discussed and measured using the Keithley 2450 and 2460 source meters. The transient response is also measured using a Keysight MSO-S series oscilloscope. The […]
1.6W Mono Audio Amplifier
https://www.electronics-lab.com/1-6w-mono-audio-amplifier/
1.6W Mono Audio Amplifier Project is based on TDA7231, which is class AB power amplifier with a wide range of supply. Power supply: 5 To 12 VDC Output: 1.6 W, 4 Ω / 1 W, 8 Ω Low crossover distortion, soft clipping PR1 Preset for Volume Adjust Terminal pins for connecting power supply, input and […]
ARC Digital Amplifier
https://www.electronics-lab.com/arc-digital-amplifier/
Enjoy high-end sound quality for all your music with this small and modern digital amplifier. The ARC was made to bridge the gap between high-end sound quality and the world of digital music. Designed as the perfect receiver and amplifier, this ultra-compact unit provides high-resolution USB audio streaming capabilities, high quality aptX Bluetooth audio and […]
Understanding silicon circuits: inside the ubiquitous 741 op amp
https://www.electronics-lab.com/understanding-silicon-circuits-inside-the-ubiquitous-741-op-amp/
Ken Shirriff’s blog looks inside the famous 741 OPMAP and discuss how it’s made and how it’s working: The 741 op amp is one of the most famous and popular ICs[1] with hundreds of millions sold since its invention in 1968 by famous IC designer Dave Fullagar. In this article, I look at the silicon […]
Introduction to OPAMPs and Applications
https://www.electronics-lab.com/introduction-to-opamps-and-applications/
Operational amplifiers (OPAMPs) are high performance differential amplifiers in integrated form that can be used in many different ways. A typical OPAMP has a non-inverting input, an inverting input, two dc power pins, one output pin and a few other fine-tuning pins. On the following image you can see a typical diagram of an operational […]
Narrowband RF Power Amplifier (520MHz)
https://www.electronics-lab.com/narrowband-rf-power-amplifier-520mhz/
The RF power amplifier stage is usually the final active block of any electronic system that is transmitting RF power. Relatively low power RF signals are amplified to produce a more powerful signal in order to be transmitted over greater distance. RF output power can range from a few mW to MW, depend by application. […]
KaraOkay Microphone Amplifier
https://www.electronics-lab.com/karaokay-microphone-amplifier/
Here is an all-analog, all-through-hole, cheap & cheerful preamplifier for that perennial problem of getting the microphone amplification just right, which is a challenge not only with the faithful reproduction of lead vocals during concerts and recordings, but also with campfire and karaoke-ish performances specially when the beer takes hold. KaraOkay Microphone Amplifier – [Link]