Making an audio player (.wav files) using PIC microcontroller is not complicated especially when the MCU has a PWM module. This topic shows how to build an audio player using PIC18F4550 microcontroller where the the file is stored in an SD card with FAT16 or FAT32 file system. In this project I used a wave […]
Wave player using PIC18F4550 microcontroller Read More »
Common-Emitter and Common-Collector Transistor Amplifier Calculator for High-frequency Operation Analysis of the bipolar transistor amplifier at low-frequency is relatively easy, and several calculators exist online that do a good job. For high-frequency operation, there are fewer references available. For my projects, I like to build a reference spreadhseet where everything is in one place. This
High- Frequency Transistor Amplifier Calculator Read More »
This past winter I designed and constructed a stereo vacuum tube amplifier based off of the TubeLab SimpleSE design. Since many people asked about it at Maker Faire Detroit, I thought I would post a link to the build photos and some more details. Check out the build album below! Some more technical details: Preamp:
DIY Vacuum Tube Amplifier Read More »
What really drove me to build this 6EM7 amp was an idea about amplifier layout. Looking back at most of my tube designs, and most of those on the internet, revealed a very typical pattern. Amplifiers tended to be flat chassis with tubes and transformers above and electronics below. From a historical perspective this makes
6EM7 Single-Ended Triode (SET) Vertical Amplifier Read More »
Description The LMH6882 is a high-speed, high-performance programmable differential amplifier. With a bandwidth of 2.4 GHz and high linearity of 42 dBm OIP3, the LMH6882 is suitable for a wide variety of signal conditioning applications. The LMH6882 programmable differential amplifier combines the best of both fully Differential amplifiers and variable gain amplifiers. It offers
TI adds gain control to differential amplifier Read More »
The Avago Technologies MGA-43428 is a fully matched power amplifier for use in the 851-894 MHz band. High linear output power at 5V is achieved through the use of Avago Technologies’ proprietary 0.25um GaAs Enhancement-mode pHEMT process. Features [-] High Gain: 34dB High Linearity performance: Max -50dBc ACLR at 27.2dBm linear output power Good efficiency
Avago has high linearity amplifiers for femtocells Read More »
NPN silicon germanium microwave transistor for high speed, low noise applications in a plastic, 4-pin dual-emitter SOT343F package. Features and benefits 110 GHz fT silicon germanium technology High maximum output third-order intercept point 32 dBm at 1.8 GHz Low noise high linearity RF transistor Applications GPS High linearity applications Ka band oscillators DRO’s LTE, cellular,
NXP integrates SiGe amp with consumer TV aerial Read More »
Description The MAX98314 mono 3.2W Class D amplifier provides Class AB audio performance with Class D efficiency. This device offers five selectable gain settings (0dB, 3dB, 6dB, 9dB, and 12dB) set by a single gain-select input (GAIN). Active emissions limiting (AEL) edge rate and overshoot control circuitry and a filterless spread-spectrum modulation (SSM) scheme greatly
Maxim designs tiny 3D audio amplifier Read More »
Nitronex is the leading source for GaN-on-Silicon RF power devices With the industry’s largest portfolio of discrete and MMIC GaN-on-Silicon devices, Nitronex power transistors are optimized for RF and microwave applications by providing the best performance/cost solution from 5W to 200W. Nitronex has shipped over 650,000 GaN-on-Si devices to military and commercial customers. Nitronex is
Firm claims smallest GaN wireless power amplifier Read More »
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
3W Stereo Audio Amplifier using TDA7266D Read More »
