Big Endian Digital Signal Processing Library (DSPLIB) for TMS320C64x (Rev. B)
Texas InstrumentsThe 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
Topics on Using the LM6181; A New Current Feedback Amp (Rev. B)
Texas InstrumentsAlthough it may seem that evaluation of high-speed circuit operation can be more quickly performed withcomputer simulation full bench evaluation cannot be supplanted. By integrating both of thesecomplementary tools the cycle time from component selection to finalized design can be reduced.
Designing the Digital Compensator For UCD91xx based Digital Power Supply
Texas InstrumentsDesigning the Digital Compensator For UCD91xx based Digital Power Supply
DN-87 UCC3918 "Low On-Resistance Hot Swap Power Manager", EVM Board, Schematic
Texas InstrumentsThe UCC3918 Low On-Resistance Hot Swap Power Manager provides complete power management, hot-swap capability, and circuit-breaker functions. This design note describes the UCC3918 evaluation kit, whic
Interfacing External Devices to the TPA310xDx Amplifiers
Texas InstrumentsTPA310xDx Logic Pin Interface
Wearable Temp-Sensing Layout Considerations Optimized for Thermal Response
Texas InstrumentsThis application note covers thermal response considerations for sensors that come in a DSBGA package for measuring skin temperature for applications such as wearables such as fitness bands and medical devices.
It will specifically focus on the LMT70, a 0.88mm x 0.88m 0.13°C max accuracy (0.05°C typ) temp sensor over the human body temperature range, but learning can be applied to other temperature sensors that come in a similar package, whether they be analog or digital sensors. Contact temperature sensors, such as the LMT70, need to be placed in close contact with the surface that needs to be measured.
This can be quite challenging for the DSBGA package that is if fast thermal response is also necessary. Experimental results of different PCB layouts will be presented when measuring axillary.
Interface Circuits for TIA/EIA-644 (LVDS) (Rev. B)
Texas InstrumentsThis design note provides information concerning the designing of TIA/EIA-644 interface circuits. The TIA/EIA-644 standard is discussed including electrical characteristics interconnections line termination and noise immunity. Finally eye patterns are used to measure the effects of signal distortion noise signal attenuation and the resultant intersymbol interference (ISI) in a data transmis
Off-Line SMPS Failure Modes PWM Switchers and DC-DC Converters
Texas InstrumentsToday's voltage regulator modules (VRMs) employ off-line SMPS techniques. Traditionally they are usually discarded when they fail because they are so challenging to debug and so inexpensive to replace. Investigation of these failed modules reveals some common failure modes. Some failures are caused by other systems' passive components that fail after repeated electrical stress. Recognizing these
Extended Precision Radix-4 Fast Fourier Transform Implemented on the TMS320C62x
Texas InstrumentsThis paper discusses a method by which the Texas Instruments (TI)(tm) TMS320C62xx or C62xx high performance fixed point DSPs overcome the traditional advantage held by floating point DSPs -- precision and speed.Using the Radix-4 Fast Fourier Transform (FFT) this document illustrates how extended precision arithmetic multiplication in particular can be performed on the 'C62xx. Using the te
TMS470R1x DMA Restart Procedure
Texas InstrumentsIn many TMS470R1x applications direct memory access (DMA) is used to move data between the system memory and peripherals to communicate with external devices. When the external device detects a data error a request (normally an interrupt) will be sent to the TMS470 to restart the unfinished DMA block transfer. This application note presents a generic software approach to restarting the DMA chan
MSP430 Based Digital Thermometer
Texas InstrumentsThis application report describes a digital thermometer design that uses the slope ADC capabilities of the Timer Port module on the MSP430x3xx microcontrollers. This report can be used more generally as a reference on how to connect resisitve sensors and reference resistors to the Timer Port module.
Electrostatic Discharge (ESD) (Rev. A)
Texas InstrumentsThis application report provides an overview of electrostatic-discharge (ESD) test models failure modes protection strategies and Texas Instruments (TI) procedures to guard against ESD failures.
Validating High- and Full-Speed USB on TMS320C5517
Texas InstrumentsThis application report describes the process to validate electrical requirements of high- and full-speed USB operations on the TMS320C5517 device.
Using the TPS3619 with MSP430 Microcontrollers Can Reduce Sys Power Consumption (Rev. A)
Texas InstrumentsThe MSP430 series of microcontrollers are ideal in applications where battery life is critical. These microcontollers require only 0.1?A of current in low-power RAM retention mode; In this mode the
Dynamic Safe-area Protection for Power Transistors Employs Peak-Temp Limit
Texas InstrumentsAN-446A Dynamic Safe-area Protection for Power Transistors Employs Peak-Temperature L imiting
Implementing a Bidirectional Frequency Hopping W/TRF6903 & MSP430 (in Chinese)
Texas InstrumentsImplementing a Bidirectional Frequency Hopping Application with the TRF6903 & MSP430 (in Chinese)
