U-157 Fueling the Megaprocessor - A DC/DC Converter Design
Texas InstrumentsThis application note provides a detailed account of design tradeoffs and procedures for the development of a voltage regulator module (VRM) for the Intel Pentium (r)Pro processor. This voltage regulator features Unitrode's UC3886 Average Current Mode PWM Controller and UC3910 4-BIT DAC and Voltage Monitor ICs configured in a buck regulator. Test results and waveforms show how the VRM power supply
TMS320TCI6482 EDMA3 Performance Data
Texas InstrumentsThe enhanced DMA v3 (EDMA3) controller of the TMS320TCI6482 device is a highly efficient data transfer engine capable of maintaining transfers at up to 21 GB/sec at a 1 GHz CPU clock frequency. This document details measured bandwidth achieved under various operating conditions. For more information on ideal transfer bandwidth and scheduling transfers please consult TMS320TCI648x DSP Enhanced
DN-84 UCC3956 Switch Mode Lithium-Ion Battery Charger Controller, EVM Board
Texas InstrumentsThis design note describes the UCC3956 Evaluation Kit, which allows the design engineer to evaluate the operation and performance of the UC3956 Lithium-Ion Battery Charger Controller. The controller i
Getting Started With The Data Converter Plug-In (Rev. A)
Texas InstrumentsThe Data Converter Plug-In (DCP) is a software plug-in shipped with the Code Composer Studio™ (CCS) for the TMS320C2800™ TMS320C5000™ TMS320C6000™ and TMS320C6400™ digital signal DSP families. It generates C source code drivers based on user inputs for TI data converters (ADC DAC and CODEC) connected to a TI DSP. This application report introduces the tool and it
TMS320DM814x/AM387x Power Estimation Spreadsheet (Rev. A)
Texas InstrumentsThis article describes how to model power consumption for a user's application and to present some measured power scenarios for the TMS320DM814x DaVinci™ digital media processors and AM387x Sita
Design For Integrated Photo Flash Charger and IGBT Driver
Texas InstrumentsThe Texas Instruments TPS65552A offers a complete solution for charging photo flash capacitors. It has an integrated power switch an IGBT driver and control logic block for photo flash applications. The TPS65552A controller requires only a few external components and gives fast charging times with high efficiency.
U-164 The UCC3884 Frequency Foldback Pulse Width Modulator
Texas InstrumentsThis application note discusses the UCC3884 frequency foldback peak-current-mode controller. The UCC3884 solves the current-tail problem often seen in high-frequency converters under overload fault conditions. Intended primarily for single-ended converters other features such as a maximum duty-cycle clamp and an accurate volt-second clamp are also included. The block diagram and the main features
Noise Analysis of FET Transimpedance Amplifiers
Texas InstrumentsThe availability of detailed noise spectral density characteristics for the OPA111 amplifier allows an accurate noise error analysis in a variety of different circuit configurations. The fact that the spectral characteristics are guaranteed maximums allows absolute noise errors to be truly bounded.
DN-62 Switching Power Supply Topology Voltage Mode vs. Current Mode
Texas InstrumentsThis design note explains the differences between voltage-mode and current-mode switching power supply topologies. It includes a circuit diagram for each mode and suggests criteria for choosing which mode to use.
CC1120-CC1190 BoosterPack
Texas InstrumentsAs the module is designed to support both Launchpad™ and SmartRF™ Studio platforms configure the board by changing the on-board jumper positions according to your application. The default configuration of the jumpers on the BoosterPack™ module is set for LaunchPad applications. The interface details of CC112x-CC1190 BoosterPack with LaunchPad and SmartRF Studio applications are
Designing with the SN54/74LS123 (Rev. A)
Texas InstrumentsThe Texas Instruments (TI) SN54/74LS123 dual retriggerable monostable multivibrator is a one-shot device capable of verylong output pulses and up to 100% duty cycle. The ?LS123 also features dc triggering from gated low-level active A andhigh-level active B inputs and provides a clear input that terminates the output pulse of any predetermined time independentof timing components R ext and
How to Begin Development with the TMS320C6712 DSP
Texas InstrumentsThis application report describes how you can begin development now for the Texas Instruments TMS320C6712 digital signal processor (DSP) systems. The similarities and differences between the C6712 and the C6711 devices are briefly discussed. Because of the compatibility between TMS320C6000 generation devices existing C6000 software tools and development platforms can be used to develop code for t
TMS320F2810, TMS320F2811, TMS320F2812 ADC Calibration (Rev. A)
Texas InstrumentsThis application note describes a method for improving the absolute accuracy of the 12-bit analog-to-digital converter (ADC) found on the F2810/F2811/F2812 devices. Due to inherent gain and offset err
Implementation of an Adaptive Antenna Array Using the TMS320C541
Texas InstrumentsAdaptive antenna arrays are expected to play a key role in meeting the demands of the wireless communication systems of the future. This application report focuses on the implementation of a DSP based three-element adaptive antenna array for narrowband wireless communications.
AN-1558 Clocking High-Speed A/D Converters (Rev. B)
Texas InstrumentsExtremely high-speed ADCs (>1 GSPS) demand a low-jitter sample clock in order to preserve signal-tonoiseratio (SNR). These 8- and 10-bit converters have best-case noise floors set by quantization noise.For an N-bit ADC sampling a full-scale sinusoid the well known expression for SNR (in dB) is: SNR =6.02N + 1.76. This sets the best case noise floor for an 8-bit ADC at −49.9 dBc. The noise f
Interfacing the DAC8803EVM to MSP430 Processors
Texas InstrumentsThis application report presents a method for interfacing the DAC8803 - a four-channel, current output, 14-bit multiplying digital-to-analog converter - to the MSP430F449 processor using the HPA449 fr
AN-276 A New, Low-Cost, Sampled-Data, 10-Bit CMOS A/D Converter
Texas InstrumentsApplication Note 276 A New, Low-Cost, Sampled-Data, 10-Bit CMOS A/D Converter
