An app note from Maxim, DS2406 PIO command examples: This application note reviews and provides example commands for using the I/O capabilities of the DS2406.
Category Archives: app notes
App note: Unique and novel uses for ON Semiconductor’s new One-Gate family
One-gate logic uses and their benefits application note (PDF) from ON Semiconductor. One–Gate logic devices have been in use for several years, and are nothing more than single–gate derivatives of their multi–gate cousins. Traditional ICs were packaged in 14 and 16 pin Dual–in–line Packages (DIPs), and the goal of the IC manufacturer was to get […]
App note: Ambiguity of the peak power rating of TVS devices
Here’s a tip app note (PDF) from ON Semiconductor on selecting specs for an TVS diode. There are two important properties of a TVS device during an electrical stress. The TVS must be able to self-protect and survive the stress current, and the TVS must clamp the protected line to a low voltage during the […]
App note: Sorting through the low voltage logic maze
Here’s how to guide (PDF) from NXP in choosing the right standard logic from various choices that fit your application. Digital systems are running at faster speeds, operating at lower voltages, and they are becoming more highly integrated. Many functions can be integrated into FPGAs or ASICs, however, this does not mean that generic standard […]
App note: Low Voltage Agile I/O GPIO Input/Output Characteristics
App note (PDF) on NXP’s Agile I/O expander, discussing its capabilities and how to use it efficiently. I2C-bus GPIO devices are widely used and expand a control processor’s pins to 8-, 16- or 24- bits of general-purpose input or output. The characteristic of these I/O needs to be accurately known to efficiently use them in […]
App note: Recommended initialization sequence for the MAX3955 and MAX3956 devices
Recommended initialization procedure for MAX3955 and MAX3956 devices from Maxim, app note can be found here: The MAX3955 and MAX3956 devices must be initialized properly to guarantee correct operation. This application note describes the recommended initialization procedure for these devices.
App note: Overcoming disorientation – Practical ways to assemble MEMS inertial sensors
An app note from Maxim, Overcoming disorientation: Practical ways to assemble MEMS inertial sensors Component placement and mounting conditions can adversely affect MEMS inertial sensor performance. This application note contains practical considerations for enhancing sensor system operation where the “real-world” environment presents undesirable locomotive signals and system resonances. Topics include placement considerations on the PCB, […]
App note: Tips and tricks to optimize your C code for 8-bit AVR microcontrollers
An application note (PDF!) on code optimization in AVR microcontrollers from Atmel : Features • Atmel® AVR® core and Atmel AVR GCC introduction • Tips and tricks to reduce code size • Tips and tricks to reduce execution time • Examples application AVR core is an advanced RISC architecture tuned for C code. It ensures the development of […]
App note: Complex power supply sequencing made easy
Power sequencing from Analog Devices using their ADP5134 sequencer IC. App note here (PDF) Power supply sequencing is required for microcontrollers, field programmable gate arrays (FPGAs), digital signal processors(DSPs), analog-to-digital converters (ADCs), and other devices that operate from multiple voltage rails. These applications typically require that the core and analog blocks be powered up before […]
App note: Using the STC3100 battery monitor for gas gauge applications
A battery monitoring chip STC3100 from STMicroelectronics tells you voltage, current, battery temperature and additionally coulomb counter for gas gauge. App note here (PDF) The STC3100 battery monitoring function includes the measurement of the battery voltage and current, measurement of the IC’s die temperature and computation of the battery charge variation (Coulomb counter). An external […]
App note: Solutions for radio frequency electromagnetic interference in amplifier circuits
Solutions for radio frequency electromagnetic interference in amplifier circuits from Microchip, app note can be found here: EMI is a real problem today and it can affect most electronic devices, including medical and avionics equipment. Modern devices include EMI filters to ensure the proper operation of equipment in harsh EMI environments. This application note demonstrates that the […]
App note: Demodulating communication signals of Qi-Compliant low-power wireless charger using MC56F8006 DSC
An app note (PDF!) from Freescale Semiconductor providing a complete solution to demodulating communication signals from power wave with MC56F8006 DSC: This application note aims to describe the Qi communication data demodulation design for wireless charger transmitter with MC56F8006 digital signal controller (DSC) including Qi communication interface, demodulation circuits design, and demodulation software design.
App note: Introduction to schottky rectifiers
App note(PDF) on schottky rectifiers from Microsemi. Schottky rectifiers have been used for over 25 years in the power supply industry. The primary advantages are very low forward voltage drop and switching speed that approach zero time making them ideal for output stages. This latter feature has also stimulated their additional use in very high […]
App note: What is a silicon transient voltage suppressor and how does it work
A primer app note(PDF) on silicon transient voltage suppressors by Microsemi. Silicon transient voltage suppressors (TVSs) are clamping devices that limit voltage spikes by low impedance avalanche breakdown of a rugged silicon pn jucntion. They are used to protect sensitive components from electrical overstress such as that caused by induced lightning, inductive load switching and […]
App note: Real-time versus equivalent-time sampling
Real-time versus equivalent-time sampling (PDF!), an app note from Tek: When a DSO uses equivalent-time sampling, it can acquire any signal up to the analog bandwidth of the scope regardless of the sample rate. In this mode, the scope gathers the necessary number of samples across several triggers. The input signal must be repetitive to generate […]
App note: White LED driver with digital and PWM brightness control in 2mm x 2mm QFN package
An application note from Texas Instruments, white LED driver with digital and PWM brightness control (PDF!): With a 40-V rated integrated switch FET, the TPS61160/1 is a boost converter that drives LEDs in series. The boost converter runs at 600kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allows for the use […]
App note: Design of a low cost, 45W flasher with short circuit protection using LM2902 (Quad Op-Amp) and CSD18534
App note (PDF) on automobile flashers from Texas Instruments This Application note presents the design of a low cost, flasher circuit with short circuit protection. The design incorporates the entire recommended design feature set for two wheeler flashers and includes low/high voltage operation, half load frequency doubling, and short circuit protection.
App note: Use of MLCC capacitors
App note(PDF) on using Multi-layer ceramic chip(MLCC) capacitors from Altera. Multi-layer ceramic chip (MLCC) capacitors are used quite often in dc-dc converter input and output filters instead of tantalum or aluminum electrolytics. MLCC’s have low ESR, low ESL, and low cost. They also have no major reliability problems associated with them. All these properties make […]
App note: Using the AVR’s High-speed PWM
Atmel’s app note on using the AVR’s High-speed PWM (PDF!): This application note is an introduction to the use of the high-speed Pulse Width Modulator (PWM) available in some AVR microcontrollers. The assembly code example provided shows how to use the fast PWM in the ATtiny26. The ATtiny15 also features a high-speed PWM timer. The fast PWM […]
App note: High voltage, low noise, DC/DC converters
An app note from Linear Technology: High voltage, low noise, DC/DC converters (PDF!) Photomultipliers (PMT), avalanche photodiodes (APD), ultrasonic transducers, capacitance microphones, radiation detectors and similar devices require high voltage, low current bias. Additionally, the high voltage must be pristinely free of noise; well under a millivolt is a common requirement with a few hundred microvolts sometimes necessary. […]