Audio amplifier using TDA1554

The TDA1554Q is an integrated class-B output amplifier in a 17-lead single-in-line (SIL) plastic power package. The circuit contains 4 x 11 W single-ended or 2 x 22 W bridge amplifiers.

Headphone amplifier circuit using LM4880

LM4880 is a dual power amplifier designed to produce high quality audio output capable of delivering power of 220mW per channel to 8 Ohm load using minimum external component and a 5v power supply. This can be very handy to design portable amplifier circuit.

Top posts of year 2022

Looking back year 2022. This year was very interesting in many aspects. We started going to office from March 2022 first time since March 2020 covid induced locked down. It was good to meet people face to face. But still…

ESP8266 module

Overview ESP8266 is a 3V WiFi module popular for its Internet of Things applications. It is a low-cost Wi-Fi microchip, with built-in TCP/IP networking software, and microcontroller capability, produced by Espressif Systems in Shanghai, China. ESP8266 has 8 pins, namely:…