Category Archives: app notes

App note: AXI Chip2Chip reference design for real-time video

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AXI Chip2Chip reference design for real-time video application (PDF!) from Xilinx: The LogiCORE™ IP AXI Chip2Chip is a soft Xilinx core that provides bridging between Advanced eXtensible Interface (AXI) systems for multi-device System-On-Chip solutions. This application note provides a setup demonstrating real-time … Read more

App note: Bit-Banging the SDI and SQI Modes of Microchip’s 23XX512/23XX1024 Serial SRAMs

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Dual Mode(SDI) and Quad Mode(SQI) Serial interface are not common peripherals on many MCU today, Microchip’s app note (PDF) provides an alternative way to communicate with these SRAMs using existing GPIOs pins in bit-bang. This application note explains in detail … Read more

App note: Getting started with the MAXQ622 evaluation kit

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Here’s an getting started guide from Maxim describing their MAXQ622 low-power RISC microcontroller: This application note describes how to create, build, and debug applications targeted for the MAXQ622 low-power RISC microcontroller. The article uses the IAR Embedded Workbench toolset and C compiler … Read more

App note: Power losses and junction temperatures on parallel Schottkys as secondary rectifiers in flyback adapter

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Parallel Schottkys performance over single Shottkys app note (PDF) from NXP This document gives an overview of power losses and the consequential junction temperature rise of two parallel Schottkys as secondary side rectifiers in flyback power adapters with up to … Read more

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App note: Free-fall sensing for drop-force modeling using a Kionix MEMS tri-axis accelerometer

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Here’s another app note (PDF) from Kionix on their tri-axis accelerometer applications. An earlier set-up was used in the application note’s experiment. This application note describes how to use a Kionix MEMS tri-axis accelerometer as a free-fall sensor for drop … Read more

App note: Interfacing the KXP94 or KXR94 tri-axis accelerometer with the Texas Instruments MSP430F149 microprocessor to measure tilt and other motions

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Capture motions with Kionix’ Tri-Axis Accelerometers and a TI’s MSP430F149. App note here (PDF) Kionix linear accelerometers function on the principle of differential capacitance. Acceleration causes displacement of a silicon structure resulting in a change in capacitance. A signal-conditioning CMOS … Read more

App note: Principles of SAWR-stabilized oscillators and transmitters

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Principles of SAW-stabilized oscillators and transmitters from EPCOS, app note here (PDF!) This application note describes the physical principle of SAW-stabilized oscillator. Oscillator structures for one- and two-port SAW resonators are discussed. An application example for a 433.92MHz transmitter for keyless entry is … Read more