I2C Communication Sample Code for the bq76940 with CRC Based on the MSP430 (Rev. B)
Texas InstrumentsThis application note describes how to communicate with the bq76940 family devices over I2C. The code is based on the TI MSP430G2553. The code shows how to write the CRC function which is used to verify the transaction integrity over the I2C and how to initialize the I2C engine of the G2553 and bq76940 registers as well as how to read binary data from the AFE registers and transfer the data to vol
DN-66 UC3854A/B and UC3855A/B Provide Power Limiting with Sinusoidal Input (Rev. A)
Texas InstrumentsUC3854A/B and UC3855A/B Provide Power Limiting with Sinusoidal Input Current for PFC Front Ends
System Design Considerations Using TI DLP? Techology in UV (365 - 400 nm)
Texas InstrumentsSystem Design Considerations Using TI DLP? Techology in UV (365 - 400 nm) System Design Considerations Using TI DLP? Techology in UV (365 - 400 nm)
Design Guidelines for the TLC320AD50
Texas InstrumentsThis document provides board-level guidelines and techniques for designing with the TLC320AD50. This includes topics such as printed-circuit board construction power-supply decoupling noise reduction and general design guidelines. The intent is to provide strategies to help users attain first-pass design sucess with the TLC320AD50.
Gain Scaling and Audio Performance of the PCM1804
Texas InstrumentsThis application note describes the theory and operation of an analog gain scaling circuit that is required to obtain specified audio performance from the PCM1804.
Using Boundary Scan on the TMS320VC5420
Texas InstrumentsThe Texas Instruments (TI) TMS320VC5420 DSP implements limited boundary scan capability with respect to standard IEEE 1149.1 boundary scan devices. This application report contains a description of the 'VC5420 boundary scan implementation and information about how to use it with other boundary scan tools and devices.
The material covered in this application report assumes the reader is familiar
OMAP-L137 Power Consumption Summary
Texas InstrumentsThis article has been contributed to the TI Developer Wiki. To see the most recently updated version or to contribute visit this topic at:
http://processors.wiki.ti.com/index.php/OMAP-L137_Power_Consumption_Summary.
This article discusses the power consumption of the Texas Instruments OMAP-L137. Powe
Using the Timer_A UART Library (Rev. A)
Texas InstrumentsThis document serves as an overview describing the use of the Timer_A UART library within an existing C or assembly project. The Timer_A UART library encapsulates commonly used routines for transmitting and receiving bytes using UART. These functions are written in assembly to be optimized for the MSP430 but can be called from any C program that includes the ta_uart.h header file.
OA-24 Measuring and Improving Differential Gain and Differential Phase for Video (Rev. B)
Texas InstrumentsDifferential gain (DG) and differential phase (DP) are two specifications that designers of composite videosystems use everyday. We will define them here just to be sure we are all speaking the same languageand to ensure understanding of the rationale of the test technique used by Texas Instruments.
AN-2192 LM3492 12VAC, 7W LED Driver for AR111 Application (Rev. A)
Texas InstrumentsThe LM3492 demonstration board included in this package is designed for converting nominal 12VAC from electronic transformer output to drive seven series connected LEDs at 360mA average current. The
TVP5020 NTSC/PAL Digital Video Decoder Initialization
Texas InstrumentsThis application report describes the general requirements for initialization of the TVP5020 NTSC/PAL video decoder. The covered topics include hardware reset microcode download microcode file format conversion register initialization and register write/read latency issues.
WEBENCH® tools and the photodetector's stability
Texas InstrumentsThe first priority for a photosensing application is to design good stability into the transimpedance amplifier circuit. The Texas Instruments developers of WEBENCH® designer tools have conscientiously provided photosensing designs with stable 60° phase margins, or an approximate 8.7% overshoot from a step-input signal.
WEBENCH Designer tools have powerful software algorithms and visual interfaces that deliver complete power, lighting, and sensing applications in seconds. This enables the user to make value-based comparisons at a system and supply-chain level before a design is committed. One tool among others embedded in the WEBENCH environment is the photodiode portion of Sensor Designer. This article is specifically about the WEBENCH Sensor Designer’s built-in photodiode circuit stability.
Architecture and Function of the MSP430 14-Bit ADC
Texas InstrumentsThis application report describes the architecture and function of the 14-bit analog-to-digital converter (ADC) of the MSP430 family. The principles of the ADC are explained and software examples are given. The report also explains the function of all hardware registers in the ADC. The References section at the end of the report lists related application reports in the MSP430 14-bit ADC series.
Build high density, high refresh rate, multiplexing LED panel with TLC5958
Texas InstrumentsThis application report describes how to build high-density, high refresh rate, multiplexing panel with the TLC5958; a 48 channel, 16-bit ES-PWM LED driver with pre-charge FET, LED open detection and display data memory supporting 32-multiplexing.
Migrating from TMS320VC549 to TMS320VC5410 (Rev. A)
Texas InstrumentsThis document describes issues of interest related to migration from the TMS320VC549 to the TMS320VC5410. The objective of this document is to indicate differences between the two devices. Functions t
Using the CDCE72010 as a Frequency Synthesizer
Texas InstrumentsThis application report is a general guide for using the CDCE72010 as a frequency synthesizer. This document explains the methods to work with the phase-locked loop (PLL) of the CDCE72010 to achieve multiple outputfrequencies from any input frequency. It also describes the basic functionality and methods for using the device efficiently. Furthermore it describes the clock terminationmethod d
Running Demo via ddd on the DVEVM
Texas InstrumentsThe TMS320DM6446 device includes an ARM core which can run the very popular Linux® operating system. One of Linux strengths is its open source approach enabling developers a wide range of development tools from free open source debugger applications such as ddd to sophisticated IDE-based debuggers sold by independent software vendors such as MontaVista's® DevRocket™ and Green Hills&r
PWM DAC Using MSP430 High-Resolution Timer
Texas InstrumentsThe digital-to-analog converter (DAC) generates an analog output that is proportional to the digital input it receives. The pulse width modulation (PWM) DAC is one of the popular techniques to implement DAC functionality in MCUs that don’t have an integrated DAC module. The PWM DAC approach is not new but performance limitations have historically confined its use to low-resolution low-bandwidth
Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters
Texas InstrumentsDelta-Sigma Analog-to-Digital Converters are well known for their innate ability to resolve an analog input signal to very small LSB voltage ranges. The primarily applications for this type of product
