Sony doesn’t like to talk about their SMC-777 very much, but this unloved middle child represents an entire parallel universe of Japanese 8-bit computing. Today, we’ll take an extremely battered example and get it working again.| Leaded Solder
Implantable cardioverter defibrillators (ICDs) provide real-time monitoring and immediate defibrillation for life-threatening arrhythmias. However, the intracardiac electrogram (IEGM) acquisition of ICDs faces stringent constraints, including power consumption, low-frequency noise, and… The post Reconfigurable Ferroelectric Bandpass Filter With Low-Frequency Noise Analysis for Intracardiac Electrogram Monitoring appeared first on IEEE Solid-State Circuits Society.| IEEE Solid-State Circuits Society
This letter describes an ultra-low-noise, high-speed transimpedance amplifier (TIA) applied to the analog front-end (AFE) circuit of the high-sensitivity optical receiver. A combination of a three-stage amplifier and two positive… The post A 2 pA/ √Hz Input-Referred Noise TIA in 180-nm CMOS With 2.5GHz Bandwidth for Optical Receiver appeared first on IEEE Solid-State Circuits Society.| IEEE Solid-State Circuits Society
This letter presents a compact and energy-efficient analog front-end (AFE) circuit for fully-digital beamforming in endoscopic and catheter-based 3D-ultrasound imaging. The AFE converts single-ended analog input from each transducer element… The post A 10.9nV/√Hz, 74.9dB-DR, 20MS/s Ultrasound Analog Front End for Fully-Digital Beamforming appeared first on IEEE Solid-State Circuits Society.| IEEE Solid-State Circuits Society
Coming from an IT background to an AM transmitter site might leave you with a world of questions. Mark Persons explains the basics.| Radio World
I have a Multia (VX40) that developed intermittent failure to POST, and had a very hot 3.3V rail. It seems this is because a capacitor on the system gets sheared off the board by a metal locating peg when the… Continue reading →| the sporks space
Ever wondered why 100nF is a go-to value for decoupling capacitors? This number has pervaded in datasheets and electronics advice going back to the 1980s, and is still widely present in the datashe…| codeinsecurity
Repair of a Sharp MZ-700 power supply and cassette tapes. Use of an RGB video cable.| Leaded Solder
Repair of an NEC MultiSync 3D CRT with green interference on the screen.| Leaded Solder
I’ve been reading about capacitors a lot lately. Not just their high-level circuit behaviours, but also their materials and physical properties. I put together a heap of notes on the topic. K…| codeinsecurity