AN-1312 SCANSTA111/SCANSTA112 Scan Bridge Timing (Rev. B)
Texas InstrumentsThis application report contains the timing information for both the SCANSTA111 and the SCANSTA112.
PowerPAD? Thermally Enhanced Package (Rev. G)
Texas InstrumentsPowerPAD? Thermally Enhanced Package Application Report
Linear Improvement of the MSP430 14-Bit ADC Characteristic
Texas InstrumentsThis application report shows different linear methods to improve the accuracy of the 14-bit analog-to-digital converter (ADC) of the MSP430 family. Different correction methods are explained: some with monotonicity and some using linear regression. The methods used differ in RAM and ROM allocation calculation speed reachable improvement and complexity. For all correction methods proven optim
CDCE62005 as Clock Solution for High-Speed ADCs
Texas InstrumentsTI has introduced a family of devices well-suited to meet the demands for high-speed ADC devices such as the ADS5527 which is capable of sampling up to 210 MSPS. To realize the full potential of these high-performance products it is imperative to provide a low phase noise clock source. The CDCE62005 clock synthesizer chip offers a real-world clocking solution to meet these stringent requirements
TWL1200 PCB Design Guidelines
Texas InstrumentsThe Texas Instruments TWL1200 is a 19-bit voltage translator specifically designed to bridge the 1.8-V/2.6-V digital-switching compatibility gap between a 2.6-V baseband and the Wi-Link-6 (WL1271/3) and is optimized for SDIO UART and audio functions. When laying out a printed circuit board (PCB) for the TWL1200 careful consideration of design rules and guidelines must be employed to help prese
Comparing the bq29312A to the bq29312
Texas InstrumentsThe bq29312A analog front end (AFE) IC contains a minor change to the existing bq29312 AFE that improves overall system-level ESD performance. The specifications of the bq29312 and bq29312A are identical.
Basics of the CDC7005 Hold Function
Texas InstrumentsThe CDC7005 is a high-performance clock synthesizer and jitter cleaner with implemented hold functionality. The hold functionality can be used for fail-safe operation if the reference clock is missing. This application report describes the basis the advantages and the limitations of the CDC7005 hold functionality. Additionally a discrete realization of a simplified external hold function is sho
TMS320C6457 Power Consumption Application Report (Rev. A)
Texas InstrumentsThis document discusses the power consumption of the Texas Instruments TMS320C6457 digital signal processor (DSP). The power consumption of the device is highly application-dependent. Therefore a power spreadsheet that estimates power consumption is provided along with this application report. This spreadsheet can be used to model power consumption for user applications such as power supply desig
Current or Voltage Feedback/New, Flexible,Wide-Band Operational Amplifier OPA622
Texas InstrumentsThis application note will present the internal circuit configuration, specifications, and frequency response alignment of the OPA622 and will also describe its diverse applications.
Clock jitter analyzed in the time domain, Part 2
Texas InstrumentsPart 1 of this three-part article series focused on how to accurately estimate jitter from a clock source and combine it with the aperture jitter of an ADC. In this article, Part 2, that combined jitter will be used to calculate the ADC’s signal-to-noise ratio (SNR), which will then be compared against actual measurements.
Operating the TPS61042 from Two Li-Ion and Input Voltages Higher than 6V
Texas InstrumentsThe following designs show how to operate the TPS61042 switch boost converter from input voltages greater than 6 V.
TMS320C6000 Code Optimization Partitioning Strategies to Improve Inner Loop Perf
Texas InstrumentsThis document descibes the process used to develop loop partitioning for the Texas Instruments (TI)(tm) TMS320C6x digital signal processor (DSP). The 'C6x code generation tools go through five basic phases when scheduling a loop. At each of these stages there is a set of heuristics which try to make intelligent decisions where multiple options exist. This document focuses on the third stage parti
Using the Wireless SimpleLink CC26xx in Ext Regulator Mode With the TPS62740
Texas InstrumentsThis application report describes the set-up and expected performance when using the CC2640 in external regulator mode together with the TPS62740. Although this application report focuses on the CC2640 and Bluetooth® Smart applications the solutions provided are also applicable for the entire CC26xx family and its supported protocols. Note that waveforms and power consumption measurement r
Power Two Xilinx(TM) LX240 Virtex-6(TM) Devices
Texas InstrumentsThis reference design is intended to help designers wishing to use two of the new Virtex-6™ LX240 FPGA along with DDR memory and other optional circuitry in their designs. It provides nine rails of lower voltage with an input of 12 volts. The use of PTH T2 modules provides a high-performance solution for good transient response and tight regulation while conserving valuable board space.
TFP501 EEPROM Considerations
Texas InstrumentsThe user has a variety of EEPROMs to select for use with the TFP501. This report describes some considerations for selecting an EEPROM for use with the TFP501. Examination of the I2C activity of the TFP501 can provide an understanding of the power on requirements for the device in test. Comparison of EEPROM activity to known results can aid in diagnosis of board problems.
Interfacing the ADS8361 to the TMS320C6711 DSP
Texas InstrumentsThis application report presents a method for interfacing the ADS8361 16-bit SAR analog-to-digital converter to the TMS320C6711 DSP using McBSP1. The software developed reads 1024 samples continuously from the ADS8361. In an effort to reduce development time the source code for this application note can be found on the Texas Instruments web site at http://www.ti.com. Search for document number
Improved Thermal Dissipation and Energy Efficiency for Peripheral Driving
Texas InstrumentsThe ULN2003A has long been a popular device used for driving high-current peripheral circuits from microcontroller and control logic output signals. The ULN2003A consists of seven Darlington bipolar transistors which sink current from the output to ground when a high logic signal is placed on the input. Because the ULN2003A is based on bipolar Darlington transistor topology, it dissipates a considerable amount of power even when it sinks small output currents.
The TPL7407L is a new peripheral driver that uses an N-channel MOSFET transistor on the output instead of the bipolar Darlington pair. Because of the NMOS output, the TPL7407L can sink more current to ground while dissipating less power and generating less heat which makes it an overall improved device compared to the ULN2003A. This application note explains how the CMOS technology in the TPL7407L improves power dissipation and thermal performance compared to the ULN2003A, including a 50% reduction in power consumption in typical use cases.
An RF5 Adaptation for IDMA2-Based Algorithms: A JPEG Example
Texas InstrumentsReference Framework 5 (RF5) for eXpressDSP Software is provided as starterware for developing applications that use DSP/BIOS and the TMS320 DSP Algorithm Standard (also known as XDAIS). The XDAIS standard has introduced DMA specifications on how algorithms should use the DMA resources and it is possible to incorporate an algorithm adhering to these specifications into RF5.
The purpose of this a
