Stacking Multiple bqq2941x Li-Ion Secondary Voltage Protectors
Texas InstrumentsLi-ion battery applications requiring five or more series cells can make use of standard 4-series-cell secondary protectors such as the bq2941x series. The devices can be stacked as necessary and outputs of individual devices can be combined with optocouplers to produce a single alarm signal if any cell exceeds the threshold. In addition for undervoltage protection TLV3011 nanopower comparato
Shared Memory Interface With a TMS320C5x DSP
Texas InstrumentsThis document discusses how to efficiently share memory with a DSP and a host without needing expensive dual-port RAMs. It includes a block diagram and a discussion of the bus arbitration issues.
Implementing V.32bis Viterbi Decoding on the TMS320C62xx DSP
Texas InstrumentsThis paper describes the implementation of the V.32bis decoding algorithm on the Texas Instruments (TI) TMS320C62xx digital signal processor (DSP). The V.32bis Viterbi decoder algorithm is based on a soft-decision maximum-likelihood decoding technique. (Details on the theory behind this algorithm are described in the TI publication DSP Solutions for Telephony and Data/Facsimile Modems literature
High Current LDO Linear Reglators (UCCx81-ADJ, UCx82-ADJ, UCCx83-ADJ, UCx85-AD
Texas InstrumentsThis application provides an overview of the UCCx81-ADJ, UCCx82-ADJ, UCCx83-ADJ, UCCx84-ADJ, and UCcx85-ADJ devices.
An IEEE 1149.1 Based Logic/Signature Analyzer In A Chip
Texas InstrumentsThis document describes an IEEE 1149.1-based test integrated circuit (IC) referred to as a digital bus monitor (DBM) which emulates the functions of logic and signature test instruments. The DBM provides an embedded method of monitoring circuits at speed either on the board or at the multi-chip module level. A basic understanding of the IEEE 1149.1 standard is assumed. This article is reprinted w
MSP430FW42x Scan Interface SIFCLK Adjustment
Texas InstrumentsMSP430FW42x Scan Interface SIFCLK Adjustment Application Report
D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On-
Texas InstrumentsTPS542xx D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On-Time with
Medium Integrated Power Solution Using a Dual DC/DC Converter and an LDO (Rev. B)
Texas InstrumentsThis reference design is intended for users designing with the TMS320C6742 TMS320C6746 TMS320C6748 or OMAP-L132/L138 processor. Using sequenced power supplies this reference design describes a system having a 3.3-V input voltage and a high-efficiency dc/dc converter with integrated FETs for a small simple design.Sequenced power supply architectures are becoming commonplace in high-performan
Using ADS8411 in a Multiplexed Analog Input Application (Rev. A)
Texas InstrumentsThis application report is intended as a guide for using an analog multiplexer to multiplex several input signals to a single high-resolution high-speed SAR analog-to-digital converter (ADC). The ADC and the multiplexer used were the ADS8411 and the TS5A3159/3359 respectively. This document discusses the important parameters of a multiplexer and defines a few important measurements for evaluatin
RC Filter Box For Class-D Output Power and THD+N Measurement
Texas InstrumentsRC Filter Box For Class-D Output Power and THD+N Measurement
ADSL Power Spectrum Density (PSD) Calculation
Texas InstrumentsThis article describes how to measure ADSL transmission power spectrum density (PSD) and how to calculate signal voltage based on PSD. These calculations can help in designing over voltage protection circuits for ADSL and in debugging ADSL analog circuitry.
bq27520-G3 to bq27520-G4 Change List
Texas Instrumentsbq27520-G3 bq27520-G4 bq27520-G2 bq27520-G1 bq27520EVM bq27520-G3 to bq27520-G4 Change List
Cyclone? III FPGA Starter Kit Power Reference Design
Texas InstrumentsThis power supply was designed to power the 3C25F324 starter kit. This reference design has many benefits over the existing power supply found on the starter kit demonstration board.
Evaluating UCD3138 in Interleave PFC or Bridgeless PFC Configurations
Texas InstrumentsEvaluating UCD3138 in Interleave PFC or Bridgeless PFC Configurations using UCD3138PFCEVM-026
TLV320AIC12/13/14/15 CODEC Operating Under Stand-Alone Slave Mode
Texas InstrumentsThis application report presents the methods tips and examples for using the TLV320AIC12/13/14/15 codec in stand-alone slave mode. The TMS320C5402 DSK and the Code Composer Studio? (CCS) were used as the development platform for this DSP-codec system.
AN-805 Calculating Power Dissipation for Differential Line Drivers (Rev. B)
Texas InstrumentsThe purpose of this application report is to provide end users with a sample power dissipation calculation for typical TIA/EIA-422 and TIA/EIA-485 differential line drivers. Other topics that are addressed include worst case power dissipation and packaging/thermal considerations.
Economic Voltage Measurement With the MSP430 Family
Texas InstrumentsThis application report describes voltage and current measurement methods using the MSP430 universal timer/port module. The report explains the two measurement methods (charge and discharge) and shows
