Filter Design on a Budget
Texas InstrumentsA question that repeatedly gets asked is ?what values of R and C will give a filter response closest to a given frequency?? This note gives a quick answer to that question. A second question that often is asked ?does a lab really need to have a complete stock of 1% resistors in order to implement filters of any frequency?? While there is no single answer that fits every situation or budget this n
DN-105 UCC3588 5-Bit Programmable Output BiCMOS Power-Supply Controller, EVM
Texas InstrumentsThe UCC3588 voltage mode synchronous step down (buck) controller provides the functionality required for high efficiency, low cost, regulated power for microprocessors. A 5-bit DAC provides output vol
Interfacing the TLV5639 DAC to the TMS320C31 DSP
Texas InstrumentsThis application report discusses the implementation of an interface between the TLV5639 DAC and the TMS320C31 DSP. The TLV5619-5639EVM is used to demonstrate the complete circuit implementation. This
bq20z70, bq20z75, bq20z90, and bq20z95 Voltage Current & Measurement Accuracy
Texas Instrumentsbq20z70, bq20z75, bq20z90, and bq20z95 Voltage, Current, and Temperature Measurement Accuracy
Operational Amplifier Macromodels: A Comparison
Texas InstrumentsAll major competitors in the operational amplifier markets are providing their customers Spice-based macromodels. These models give the designer a tool to do initial characterization and a limited amount of system troubleshooting. In the interest of faster simulation times and lower CPU memory requirements macro topologies have been developed to simulate a majority of the op amp's performance cha
Connecting TMS320C54x DSP With Flash Memory
Texas InstrumentsFlash memory offers better cost per bit than traditional EPROM when storage density increases. Flash memory competes with EPROM with lower power consumption and smaller package and program content after assembling. These features make flash memory a good selection in applications like GPS receiver hand-held MP3 player and Set-Top Boxes.The Texas Instruments (TI)(tm)TMS320C54x family of digi
Configuration Security for the UCD911X Digital Controllers
Texas InstrumentsConfiguration Security for the UCD911X
LB-47 High Voltage Adjustable Power Supplies
Texas InstrumentsLB-47 High Voltage Adjustable Power Supplies
FIFO Memories: Solutions For Increasing Clock Rates And Data Widths (Rev. A)
Texas InstrumentsFour TI CMOS clocked first-in first-out (FIFO) memories the 2k?9 SN74ACT807 the 512?18 SN74ACT7803 the 256?18 SN74ACT7805 and the 64?18 SN748ACT7813 provide synchronous interfaces that conform to the requirements of many high-performance systems. The FIFO architecture limits the glue logic necessary and limits the timing constraints to the system. Each FIFO is easily expanded to accommodate var
Basic Application Loading over the Serial Interface for the DaVinci TMS320DM644x
Texas InstrumentsThis application report describes two related pieces of software that are used together to download an application over the DM644x UART0 serial interface and run it out of the ARM internal memory. The discussion begins with a description of a host application that executes on a user’s PC and includes a description of how to interface to the ROM boot loader of the DM644x device. The discussion of
Clock Recommendations for the DM643x EVM
Texas InstrumentsThe DM643x evaluation module (EVM) requires several clock frequencies to run the system properly. The current clocking proposal of the low-cost EVM consists of the VCXO chip PI6CX100-27W the PLL chip PLL1705 several bus drivers and a few oscillaors and crystals. This application report discusses several optimized clocking proposals with the Texas Instruments new clock drivers and recommends a m
Interfacing the MSP430x11x(1) and TLV0831 (Rev. A)
Texas InstrumentsThis application report describes how to interface an MSP430x11x(1) 16-bit RISC-like mixed-signal microcontroller and a TLV0831 8-bit A/D converter. This report is written for the MSP430x11x(1) family
Interfacing the DAC7558 to the MSP430F449
Texas InstrumentsThis application report describes how to interface the DAC7558 digital-to-analog converter (DAC) to the MSP430F449 mixed signal processor.
Low-Cost Circuit Biases VCO for Cable and TV
Texas InstrumentsLow-Cost Circuit Biases VCO for Cable and TV
AN-777 LM2577 Three Output, Isolated Flyback Regulator (Rev. B)
Texas InstrumentsMany voltage regulator applications require multiple outputs, such as a computer's power supply or a regulator used to meet the voltage requirements inside an automobile. Some of these applications r
Creating a Bipolar Input Range for the DDC112
Texas InstrumentsThe following sections of this application note review the DDC112?s input range describe how to make it bipolar show how to experiment with bipolar ranges using the DDC112 Evaluation Fixture and finally how to derive the noise contribution that comes with making the range bipolar.
Simplified Programming of Altera FPGAs Using CSANSTA111/112 JTAG Scan Chain Mux (Rev. D)
Texas InstrumentsThis Application Note describes the operating modes of SCANSTA111/112 and their uses in partitioningcomplex scan chains. Several examples are illustrated in simplied programming with Altera FPGA orCPLD with SCANSTA111/112.
