Minimizing Light Load Oscillations with ORing Controllers
Texas InstrumentsORing controllers are used to replace diodes in applications looking to improve system efficiency. They are designed to behave like a diode as much as possible. However, at light loads, with low RDS(o
Benefits & Issues of Migrating 5-V and 3.3-V Logic to Lower-Voltage Supplies (Rev. A)
Texas InstrumentsBenefits and Issues on Migration of 5-V and 3.3-V Logic to Lower-Voltage Supplies
Implementing the Gamma Correction Algorithm Using the TMS320C2xx DSP
Texas InstrumentsA nonlinear effect of signal transfer exists between an electrical and an optical device. For example the transfer function of a cathode-ray picture tube (CRT) produces an output intensity proportional to some power (usually about 2.2 and referred to as the gamma factor) of the signal voltage. The nonlinear effect distorts the color displayed by the CRT. To compensate for the nonlinear effect a
Obsolete (see SSYA010A)
Texas InstrumentsAll semiconductor devices have an ESD voltage threshold above which they sustain damage. While circuit designers can provide some on-circuit ESD protection (typically in the 2000 V to 4000 V range for the human body model and in the 200 V to 300 V range for the machine model) this is well below the static voltage levels found in work areas without ESD protection. Proper ESD handling and pac
Evaluation Criteria for ADSL Analog Front End
Texas InstrumentsThis paper describes several important ADSL AFE1302 evaluation criteria and design limitation factors including the relationship between total SNR and transmission data speed; loop attenuation variation with DMT signal frequency and its influence on the reach; the echo return loss of the hybrid circuit; and the impact of Multi-Tone Power Ratio.
AN-1706 LMX9838 Firmware Release Note (Rev. B)
Texas InstrumentsThis application note describes all release changes within the LMX9838 firmware.
Design for a Wideband Differential Transimpedance DAC Output
Texas InstrumentsHigh-speed digital-to-analog converters commonly offer a complementary current output signal. Most output interface implementations use either a resistive load and/or a transformer to convert this current source signal to a voltage. Where a dc-coupled interface is required a carefully designed differential transimpedance stage can offer an attractive alternative. Design considerations and options
MSP430x5xx Overview Comparison to MSP430x2xx and MSP430x4xx
Texas InstrumentsThe MSP430x5xx series of devices is the latest addition to the MSP430 family of microcontrollers. Although there are many common features between the MSP430x5xx and MSP430x2xx/MSP430x4xx offerings, th
TI814x-DDR3-Init-U-Boot
Texas InstrumentsThis article describes how to initialize the DDR3 and uBoot on the TMS320DM814x DaVinci™ digital media processors (DSP) and AM387x ARM® microprocessors (MPUs) PG2.x samples using the software leveling process.
This article has been contributed to the TI Embedded Processors Wiki. To see the most recently updated version or to contribute visit this topic at:
LDC Sensor Design
Texas InstrumentsGetting the best performance out of an LDC requires a sensor suitable for the measurement. This app-note covers the parameters to consider when designing a sensor for a specific application. Specific
Analog Watchdog Resistor, Capacitor and Discharge Interval Selection Constraints (Rev. A)
Texas InstrumentsTolerances on VCCIO, resistor and capacitor values, and internal silicon variations make calculation of the analog watchdog (AWD) components and period complicated. A method for calculating the compon
Understanding and Designing an Active Clamp Current Mode Controlled Converter
Texas InstrumentsThe UCC2897A Current Mode Active Clamp PWM Controller offers a highly integrated feature set resulting in precision control required for an active clamp forward or flyback converter. The UCC2897A data sheet contains all the design details necessary for accurately programming the device. However, there are significant design considerations and trade-offs unique to the active clamp power stage that must be defined prior to setting up the control device. Using the active clamp forward topology as an example, the clamp, power stage and control loop compensation is detailed in the following application note, which is intended to complement the information presented in the UCC2897A data sheet. This information is also applicable to the UCC2891/2/3 and 4.
Software IP Protection on MSP432P4xx Microcontrollers
Texas InstrumentsSoftware IP Protection on MSP432P4xx Microcontrollers
DN605 -- CC-Antenna-DK Board #8 OTA Test Results (433 MHz) with EB
Texas InstrumentsDN605 -- Design Notes
Differences Between the TPS65800/810/820 PMIC Devices
Texas InstrumentsDifferences Between the TPS65800/810/820 PMIC Devices
Clocking Options on the TMS320C5x
Texas InstrumentsThere are three speed versions available on most TMS320C5x devices-50 ns 35 ns and 25 ns. If you desire to run these devices at full speed the clock input required is 20 MHz 57 MHz and 80 MHz respectively. In a standard configuration the input clock is divided by two to get the internal machine cycle: 40 MHz/2 = 20 MHz = 50 ns. The CLKOUT1 pin will run at the same speed as the internal mach
Input Filter Design for Switching Power Supplies
Texas InstrumentsInput Filter Design for Switching Power Supplies
