This document describes how to use the I2C master function set for MSP430™ devices with the USCI module. These functions can be used by MSP430 master devices to ensure proper initialization of the USCI module and provide I2C transmit and receive functionality. A similar version with DMA support has also been included. The USCI I2C master function set only supports single-master transmitter or rece

AN-1261 Power Supply Effects on Noise Performance

This document describes the TRF3040 evaluation board and associated software driver, which allow the evaluation and demonstration of the Texas Instruments (tm) TRF3040 Frequency Modulator/Synthesizer

The TPS6206x internal compensation network is optimized for an LC output filter composed of a 1-µH inductor and a 10-µF ceramic capacitor. The device is designed to operate with nominal inductor values of 1 µH to 1.2 µH and with ceramic capacitor values of 10 µF to 22 µF. By selecting the proper feedforward capacitor a wider range of output inductors and capacitors can be used with the TPS6206x.

This application report describes the development of a real time system for tracking a walking person using a high-speed image processor and an active camera head. The image processor is composed of f

Current loops have become the standard for signal transmission in the process control industry. Current loops are insensitive to noise and are immune to errors from line impedance. Adding isolation to the 4-20mA current loop protects system electronics from electrical noise and transients. It also allows transducers to be electrically separated by hundreds of volts.

This application report is intended to review Resistance Temperature Devices (RTD) and commonly usedinterfaces for them.

Of all common environmental parameters humidity is perhaps the least understood and most difficult tomeasure. The most common electronic humidity detection methods albeit highly accurate are not obviousand tend to be expensive and complex (See Box). Accurate humidity measurement is vital to a number ofdiverse areas including food processing paper and lumber production pollution monitor

Lighting electronics meant for AC-DC applications tend to get subjected to input line variations leading to sustained over-voltage on the driving circuitry. Metal oxide varistors (MOV's) meant for suppressing the transients fail at such sustained over-voltage leading to system failure and hence the need for incorporation of separate circuitry for the Input Over-Voltage Protection. The TLV809 famil

This document presents an in depth discussion of the TMS320C40 ('C40) digital signal processor (DSP) an introduction to parallel processing hardware applications software algorithms and end-applications for the 'C40 32-bit floating-point DSP. The hardware applications prototype the 'C40 to the CYPRESS VICo68/VAC068 Interface and AMELLIA an A/D or D/A interface to the TMS320C40 global bus. The

This application report describes the modulation schemes implemented in the DRV59x family of PWM power drivers to facilitate user design efforts. Texas Instruments offers three modulation options with

Emitter-coupled logic (ECL) including positive ECL (PECL) and low-voltage PECL (LVPECL)) interfacing often the first solution considered when a high-speed interface is needed suffers from high power consumption. TIA/EIA-644 low voltage differential signaling (LVDS) provides a low-power alternative to ECL when selecting a high-speed interface solution. This paper compares the power consumption o

A bootloader enables field updates of application firmware. A controller area network (CAN) bootloader enables firmware updates over the CAN bus. The CAN bootloader described in this application report is based on the Hercules™ ARM&red; Cortex™-R4 microcontroller. This application report describes the CAN protocol used in the bootloader and details each supported command.

To solve the challenges of precise capacity tracking and monitoring Texas Instruments has developed a family of accurate battery monitor devices. These devices use the coulomb counting method in order to provide the user with accurate and reliable information about the battery?s state of charge. The purpose of this report is to provide the basics of building an accurate gas-gauging feature using

Understanding the ADS1251, ADS1253, and ADS1254 Input Circuitry

This application note presents the results of an examination of a two-node controller area network utilizing the SN65HVD230 3.3-V CAN transceiver and the TMS320F243, 16-bit, 5 V fixed point DSP with i

This is an informational document detailing points to be considered when updating an existing 10/100Mb/s Ethernet design using Texas Instruments DP83846 Ethernet Physical Layer (PHY) product to thenew DP83848C/I/YB PHYTER product. Although the basic functions of the device are similar differencesinclude feature set pin functions package and pinout and possibly register operation. The i

Once the bottom circuit board has been designed, the assembly guidelines for package-on-package (PoP) versions of the OMAP35xx processor and the memory device must be considered. <p> PoP packages ha

The input offset voltage of operational amplifiers (op-amps) arises from unavoidable mismatches in the differential input stage of the op-amp circuit caused by mismatched transistor pairs collector currents current-gain betas(B) collector or emitter resistors etc. This application report describes the effects of mismatched components on the input offset voltage and proposes using an external

The digital signal processing library (DSPLIB) is a set of C-callable assembly-optimized functions commonly used in signal processing applications. While TMS320C64x supports both little- and big-endian modes for better system integration the DSPLIB has been provided in little-endian mode only. Therefore there has been a strong request for big-endian support from users who need to use big-endian