This application report discusses the best practices for designing energy meter communication circuits using the RS-485 standard. Component selection and performance tradeoffs are covered with reference to relevant standards such as IEC 61036 and DL/T 645. Reference design details are provided to help energy meter engineers successfully complete their own circuit designs.
The scan interface (SIF) of the MSP430F42x family of microcontrollers provides an innovative, low-power method to measure rotation that can be used with a variety of sensor types. Many sensor configur
The bq2007 is a highly integrated fast-charge monolithic CMOS IC that provides intelligent battery charging and charge-status monitoring for stand-alone charging systems. This application note describes the correct setup of the bq2007 features and gives examples for NICd or NiMH switch-mode and gated source fast-charger applications.
Real-valued digital finite impulse response (FIR) filters form the basis for numerous digital signal processing (DSP) applications. Efficient implementation of these filters on the TMS320C55x? DSP family requires specialized algorithm structuring that can take advantage of the dual on-chip hardware multiplier units. This application report presents implementations best suited for block FIR and si
This application report is designed to answer any questions that the user may have on the operation of the SN74AHC/AHCT123A. It also covers the most frequently asked questions and includes detailed instructions on how to calculate the external components required to make the device function correctly. Several circuits using this device also are included to show the versatility of operation
This document describes the features of the on-chip ROM for the C5505/04. Included is a description of the bootloader and how to interface with it for each of the possible boot devices as well as instructions for generating a boot-image to store on an external device.
Matrix multiplication used in areas such as graph theory, numerical algorithms, signal processing, and digital control, requires the high computational throughput provided by parallel processing. This
This application report describes two methods of interfacing a pulse train output (PTO) of clockwise and counterclockwise (CW/CCW) signals with the C2000 enhanced quadrature encoder pulse (eQEP) modul