Small Dynamic Voltage Management Solution Based On TPS62300 High Frequency Buck
Texas InstrumentsAs cellular phones and other portable electronics become more complex, more power is consumed by both active and standby systems. Consequently, power management design for portable devices offers new
Windows CE .NET Touch Screen, Keypad and Audio Device Drivers for the TSC2301
Texas InstrumentsThis application report describes a Windows CE .NET driver for the TSC2301, a Texas Instruments touch-screen/keypad controller, and a stereo audio codec device. Intel? PXA250 and PXA210 microprocesso
TMS320VC5402A/VC5409A/VC5410A/VC5416 Bootloader (Rev. F)
Texas InstrumentsThis document describes the features and operation on the TMS320VC5402A TMS320VC5409A TMS320VC5410A and TMS320VC5416 Digital Signal Processors. The contents of the on-chip ROM are discussed.
Important Notice Regarding Bootloader Program Contents:
Texas Instruments may periodically update the bootloader code supplied in the ROM to correct known problems provide additional features
AN-1957 LVDS Signal Conditioners Reduce Data-Dependent Jitter (Rev. A)
Texas InstrumentsJitter is a phenomenon troubling many designers of high-speed interfaces. It reduces available timingmargin limits transmission distance between a transmitter and a receiver and increases system cost bydemanding better performing and more expensive interconnects. LVDS interfaces are not spared fromthese ill effects as they now operate at bit rates exceeding the 3 Gbps mark. Texas Instrumen
AN-2213 LM5045 Based 240W Power Converter Using Full-Wave (Rev. A)
Texas InstrumentsThe LM5045 based 240W reference board is designed to evaluate the performance of the full-waverectification scheme on the secondary side. The reference board is designed in an industry standardquarter brick footprint.
HCMOS Design Considerations (Rev. A)
Texas InstrumentsThis document describes a potential problem designers may encounter when using high-speed CMOS (HC) logic devices. There also is a broad range of CMOS-system to non-CMOS-system interfaces that need to be considered. The design engineer inevitably encounters these interfaces. Key considerations for handling these interfaces are also discussed in this book.
Using the TMS320DM643x Bootloader (Rev. E)
Texas InstrumentsThis document describes the functionality of the DM643x ROM bootloader software. Please note that the ROM bootloader requires use of Application Image Script (AIS) as the primary data format for loading code/data. AIS is a Texas Instruments Inc. proprietary data format. AIS is explained in detail in Section 3 of this document.
Liquid Level Sensing with the Immersive Straw Approach
Texas InstrumentsThe conventional and Out-of-Phase (OoP) liquid level sensing techniques are typically implemented for direct sensing or remote sensing applications. Sensors directly in contact with the liquid container maximize the performance of the system with minimizing sensor size while remote sensing allows flexibility in system design. There are situations in which both of these sensor locations can exhibi
Using the TPS55340 as a SEPIC.. (Rev. A)
Texas InstrumentsTPS55340 TPS55340EVM-147 Using the TPS55340 as a SEPIC
AN-1943 Understanding Serial Digital Video Bit Rates (Rev. A)
Texas InstrumentsThe objective of this application report is to explain the basis for the bit rates used in serial digital interface (SDI). This leads to a deeper intuitive understanding of the nature of the SDI signal and will ultimately help the engineer design robust serial digital video systems.
Characterizing Audio Amplifier Thermal Performance
Texas InstrumentsThis application report discusses how to accurately measure the thermal performance of an audio amplifier IC at the system level.
Running a TMS320C64x+ Codec Across TMS320C64x+ Based DSP Platforms
Texas InstrumentsThis application report describes the device differences to be taken care for running the C64x+™ video codec software on different C64x+ based platforms. This document assumes that the codec software is developed for the C64x+ digital signal processor (DSP) core. As many TI platforms have a C64x+ DSP this document gives the details for running the standalone codec software on a C64x+ platfo
Q-Values in the Watch Window
Texas InstrumentsDigital signal processor (DSP) architectures are designed to handle finite number precision. Compared to floating point architecture fixed-point DSPs offer a limited degree of precision but are usually more cost effective and offer far superior performance.To work with fixed-point formats programmers need to take into consideration that each of the numerical operations should avoid overflo
In-System Programming With Catalog TMS470 Devices (Rev. A)
Texas InstrumentsThis document gives two examples of reprogramming the flash memory in-system on the TMS470 devices. These examples are intended as a reference to enable users to create their own in-system programming (ISP) methods. The reference design includes TMS470 software for use with the IAR Embedded Workbench tool. NOTE: The examples in this application report require the Flash API Modules (
Thermocouple, Cold-Junction Compensation?Analog Approach
Texas InstrumentsTemperature is the most commonly measured physical parameter in a variety of systems, including automotive, industrial, and consumer domains. There are various temperature transducers available to add
TMS320DM816x/TMS320C6A816x/AM389x Power Estimation Spreadsheet
Texas InstrumentsThis article has been contributed to the TI Embedded Processors Wiki. It describes how to model power consumption for a user's application and to present some measured power scenarios for the TMS320DM816x DaVinci™ digital media processors TMS320C6A816x C6-Integra™ DSP+ARM processors and AM389x Sitara™ ARM® microprocessors (MPUs) PG1.0 samples using a provided power estimati
bq24080 Single Cell Li-Ion Battery Charger with Modified Precharge
Texas InstrumentsThis application report demonstrates an easy way to modify the precharge current level and the fast-charge current level. Some applications may require the system to run below the V<sub>LOWV</sub> thr
Fast Logarithms on a Floating-Point Device
Texas InstrumentsThis document discusses a fast way to calculate logarithms (base 2) on a TMS320C30 or TMS320C40. This TMS320C30/C40 function calculates the log base two of a number in about half the time of conventional algorithms. The method can easily be scaled for faster execution if less accuracy is desired. The mathematics of the function is discussed in detail. There are plots to determine accuracy at diffe
JPEG Motion on the DM642 EVM (Rev. A)
Texas InstrumentsThis software demonstration combines real−time D1 Joint Photographic Experts Group (JPEG) encoding and decoding of images on the DM642 Evaluation Module (EVM) with networking functionality.
The JPEG standard pertains to compression of still images. Performing JPEG compression at the rate of 30 frames per second in isolation as individual images is known as motion JPEG (MJPEG). This demon
