Automatic Gain Control (AGC) Using the Diamond Transistor OPA660
Texas InstrumentsMultiplication of analog signals has long been one of the most important nonlinear functions of analog circuit technology. Many signal sources however such as CCD sensors pin diodes or antennas deliver weak oscillating and simultaneously wide-band signals. But now a new multiplication method is available. Used as a wide-bandwidth Automatic Gain Control (AGC) application circuit the integra
Thermal Design Guide for KeyStone Devices
Texas InstrumentsThermal Design Guide for KeyStone Devices
UCC28517 100-W PFC power converter with 12-V, 8-W bias supply, Part 1
Texas InstrumentsPower factor corrected (PFC) preregulators are generally used in ac/dc converters operating above 75 W or to meet line harmonic requirements. This article reviews the design of a 100-W ac/dc power sta
AN-2200 Precision Current Limiting with the LMP8646 and LMZ12003 (Rev. A)
Texas InstrumentsThis application report discusses how to design the Texas Instruments LMP8646 with the LMZ12003voltage regulator and a resistive load application.
TMS320TCI6486 Power Consumption Summary (Rev. A)
Texas InstrumentsThis document discusses the power consumption of the Texas Instruments TMS320TCI6486 digital signal processor (DSP). The power consumption on the TMS320TCI6486 device is highly application-dependent;
Real-time DSP Sftware Dsgn for Portable MP3 Player on TMS320C54x Using DSP/BIOS
Texas InstrumentsAs real-time digital signal processing (DSP) systems become more complicated with multiple threads of execution and faster DSPs software development and debugging becomes more complicated. An MP3 player is a good example of a multi-threaded system that executes not only DSP-type (data) threads such as MP3 decoding sample rate conversion and graphic equalization but it also runs typical ?host/c
Build a Direction-Sensing Bidirectional Repeater
Texas InstrumentsBuild a Direction-Sensing Bidirectional Repeater
TRF6901 Design Guide
Texas InstrumentsThis document briefly describes the TRF6901 single-chip RF transceiver and the major RF design techniques and system considerations involved in using the TRF6901 to establish a wireless data link. Man
General Guide to Implement Logarithmic and Exponential Operations on Fixed-Point
Texas InstrumentsModern audio and video compression algorithms usually take the advantage of logarithmic characteristics of human ears and eyes. This approach greatly reduces the redundancy in signals being processed. However it poses a requirement on fixed-point DSPs to handle these logarithmic and exponential operations.This application report provides a general guide to implement these operations on fixed-
Low Power Input and Reference Driver Circuit for ADS8318 and ADS8319
Texas InstrumentsThe one size fits all approach to operational amplifiers is not effective. Every application has its own specific requirements that must be fulfilled. Appropriate selection of the op amp that drives an analog-to-digital converter (ADC) in a low-power application is a critical step. Most available low-power op amps trade off low-power features with other parameters such as bandwidth settling t
DN201 - Using the Direct Join Request Feature in Z-Stack (Rev. A)
Texas InstrumentsThis design note describes how to configure the <b>Z-Stack</b> of a <b>ZigBee</b> device to join the network directly to a dedicated <b>parent/node</b>. The document includes a step by step explanatio
Energy Measurement Results for TI Designed Meter Using MSP430AFE2xx Devices
Texas InstrumentsThis application report describes the results obtained on a single phase electronic electricity meter using the Texas Instruments MSP430AFE2xx metering processors. These tests are indicative of the performance of a meter designed by Texas Instruments and is subject to differ based on sensor selection board layouts and other design considerations. The results include energy accuracies for active a
TPS23752 Maintain Power Signature Operation in Sleep Mode
Texas InstrumentsTPS23752 TPS23752 Maintain Power Signature Operation in Sleep Mode
Creating a DSP Boot Image for Host Boot
Texas InstrumentsThis application note describes how to create a DSP boot image from a COFF file (.out file) which can be used for host boot such as HPI/PCI boot RapidIO boot etc. The implementation of the DSP Boot Assist Tool is introduced and sample source code is provided with this application note.
DN101 -- Using the ADC to Measure Supply Voltage (Rev. A)
Texas InstrumentsThis design note includes descriptions and a code example for easily measuring the supply voltage of a device by using the internal ADC. The code is only suitable for the CC1110 CC1111 CC2430 CC2431 CC2510 and CC2511 system on chip (SOC) devices.
AN-1734 Using the LMK03000C to Clean Recovered Clocks (Rev. B)
Texas InstrumentsThis application note delivers an example of how to clean recovered clocks using the SCAN25100 SERDES and LMK03000C clock conditioner.
Bluetooth Low Energy Beacons
Texas InstrumentsThis application report presents the concept of beacons by using Bluetooth low energy technology. The important parameters when designing beacon solutions are elaborated on a detailed level throughout
Software Implementation of PMBus over I2C for TMS320F2803x
Texas InstrumentsPower Management Bus (PMBus) is a free and open standard communications protocol for power management devices. This application report provides a software implementation of the PMBus protocol over the inter-integrated circuit (I2C) hardware on TMS320F28035 Piccolo™ MCUs. The software implementation provides functions to control the underlying I2C as well as to handle PMBus transactions as either a
