VHF Aircraft radio communications receiver This is simple radio receiver project which is capable to receive aviation radio voice signals which are transmit between 118MHz to 138MHz in AM (A3E). We got initial idea of this project by reading Sverre Holm’s (LA3ZA) article about “cheap VHF receiver project“. Like LA3ZA’s original article this project is […]
Dilshan R Jayakody’s Web Log Read More »
Even a simple, well-designed tool can help significantly – we´ll introduce to you some of them … Sometimes, only a little bit is necessary to make our work more happy – a good ergonomic chair, workbench in a suitable height, good lighting … and last but not least also a good screwdriver, magnifying lens, tweezers,
Do you need to extract a hard-to-reach component from a PCB? Read More »
This design features a fourth generation programmable femtoclock that provides reference frequencies to replace crystals and SAW oscillators in high-performance applications. It is programmable through I2C interface. It has four selectable LVPECL or LVDS via I2C while its FemtoClock NG VCO ranges between 1.9GHz to 2.55GHz. It also meets the standard interface requirements of PCI
8T49N004 Programmable Femtoclock® NG with 4-outputs Read More »
New 1,4“ round display module from company 4D Systems with a round pixel placing is able to truly display various analog variables. The evolution sometimes shows, that not everything “new” is automatically better than something „well-proven“. One of examples was also a „boom“ of digital panel meters, when it seemed for a while, that the
Round panel meter by means of a display? Read More »
This reference design features the 8T49NS010 integrated circuit that functions as a clock synthesizer with a built-in fanout buffer and divider. By using an external clock source or a crystal, the 8T49NS010 can generate high performance timing geared towards the communications and datacom markets, especially for applications demanding extremely low phase noise jitter, such as
8T49NS010 Clock Synthesizer and Fanout Buffer/Divider Read More »
This BLE smart car is completed based on our latest design bluetooth 4.0 chiped- BLEDuino, L298 Motor shield, smart car body. The smart car production is simple, as DIY enthusiasts can complete their own smart car only in the form of building blocks, and the operation is also very simple, just controlling it via bluetooth
BLE Smart Car DIY Guide Read More »
Features <2mm Height, Complete Solution in <1cm2 (Single-Sided PCB) or 0.5cm2 (Dual-Sided PCB) Wide Input Voltage Range: 4V to 20V Input Voltage Down to 2.375V with External Bias 0.6V to 5.5V Output Voltage 3A DC Output Current ±1.5% Maximum Total DC Output Voltage Error Current Mode Control, Fast Transient Response Low EMI EN55022 Class B Compliant
LTM4623 – Ultrathin 20VIN, 3A Step-Down DC/DC μModule Regulator Read More »
Problem: with my previous work I can take a PCB x-ray at fairly high resolution (see bond wires like above) but the field of view is pretty small. The above x-ray doesn’t even cover an entire PDIP-40. How can I see the entire PCB?Linear stageLinear stages are great for this sort of project. As I’m
xy-ray x-ray scanner Read More »
In this episode Shahriar explores the world of Delta-Sigma modulators with emphasis on a Delta-Sigma Analog to Digital Converter (ADC). The basic concepts of analog to digital conversion is presented, particularly with respect to quantization noise spectral shape and power density. Next, oversampling ADCs are presented to demonstrate the possibility of increasing SQNR (ENOB) through
Theory, Design and Characterization of Delta-Sigma Analog to Digital Converters Read More »
The PicoBuck is a small and inexpensive 3-channel LED driver. It employs constant-current buck driving which approaches an efficiency of 95% (theoretical). It’s based on AL8805 LED Lighting Buck Driver from Diodes Inc. Description The PicoBuck supports a wide range of input voltages (6v to 20v) which may be connected to the VIN header. It
PicoBuck – RGB LED Driver Read More »
