TRF7960 and TRF7970A Comparison
Texas InstrumentsThis application report is intended to help users of the TRF7970A high-frequency RFID/NFC reader IC understand the differences between it and the TRF7960 IC. Understanding these differences in detail and applying this knowledge to application-specific requirements can assist in development efforts.
AN-466 Improving the Performance of a High Speed PBX Backplane
Texas InstrumentsAN-466 Improving the Performance of a High Speed PBX Backplane
Low-Level Output Voltage vs. Sinking Current of a Bipolar Output Amplifier
Texas InstrumentsLM2902-Q1, LM2904-Q1 Low-Level Output Voltage vs. Sinking Current of a Bipolar Output Amplifier
Configuring the bq27505 Data Flash
Texas InstrumentsThe bq27505 battery fuel gauge has many data flash constants that can configure the device with various, different options for most features. The data flash of the bq27505 is split into sections, whic
Sensorless Control of a Trapezoidal Brushless DC Motor Using the TMS320C25 DSP
Texas InstrumentsThis application report presents the theory and practice of implementing a closed-loop sensorless commutation scheme for a trapezoidal brushless DC motor. The implementation consists of a PC-hosted Texas Instruments (TITM) TMS320C25 digital signal processor (DSP). The TMS320C25 functions as a coprocessor running an algorithm to determine the phase voltage switching points. This solution uses t
AN-982 COP888GW Features and Applications
Texas InstrumentsApplication Note 982 COP888GW Features and Applications
TMS320C54x Interface With SDRAM
Texas InstrumentsThis application report provides a comprehensive guide into the design of the hardware interface between the Texas Instruments (TI)(tm) TMS320C54x digital signal processor (DSP) and the TMS626812A 2MX8 synchronous dynamic random-access memory (SDRAM) using field programmable gate arrays (FPGA). A test algorithm is also written in assembly to test the hardware design and the SDRAM. This design ca
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
