Usage of I2C for CDCE(L)949, CDCE(L)937, CDCE(L)925, CDCE(L)913
Texas InstrumentsThis document presents a method to smoothly change frequency by I²C? protocol on Texas Instruments CDCE(L)949, CDCE(L)937, CDCE(L)925, CDCE(L)913 Clock Synthesizers, thus avoiding unnecessary int
Filters for Data Transmission
Texas InstrumentsThe process of filtering an analog signal removes all frequencies above or below a corner frequency passing only a band of frequencies or rejecting a band of frequencies. When digital signals are filtered however a totally different set of constraints applies. This application note gives the designer a set of tools for implementing a filter that is the best compromise of interference rejecti
Interfacing the DAC8534EVM to TMS320C5x Processors
Texas InstrumentsThe DAC8534 is a quad-channel, low-power, 16-bit, serial digital-to-analog converter. This application report describes a method for interfacing the DAC8534 to the TMS320C5x-series DSKs using McBSP1 a
Get low-noise, low-ripple, high-PSRR power with the TPS717xx
Texas InstrumentsWhile highly efficient switching power supplies are commonly used for long battery life in portable end equipment such as mobile phones and PDAs, the internal circuitry of some of these devices is sensitive to noise and therefore does not operate properly when powered from a switching power supply with output ripple. Audio circuitry, PLLs, RF transceivers, and DACs are just a few examples of such circuits. Linear regulators are ideal for powering these circuits.
TMS320C55x Self-check Program: Version 1.0
Texas InstrumentsThe TMS320C55x?(C55x?) self-check program verifies the operation of DSP devices in the C55x generation by checking for proper operation of the CPU core and internal RAM. On-chip peripherals are not tested since doing so would be target system dependent. It is important to note that this program only provides a confidence check. It is not as comprehensive as the tests done at production which thor
LB-11 The LM110 - An Improved IC Voltage Follower
Texas InstrumentsThere are quite a few applications where op amps are used as voltage followers. These include sample and hold circuits and active filters as well as general purpose buffers for transducers or other high-impedance signal sources. The general usefullness of such an amplifier is particularly enhanced if it is both fast and has a low input bias current. High speed permits including the buffer in the signal path or within a feedback loop without significantly affecting response or stability. Low input current prevents loading of high impedance sources, which is the reason for using a buffer in the first place.
AN-1237 RSDS™ Flat Panel Display Design Guidelines Part 2 (Rev. A)
Texas InstrumentsAN-1237 RSDS™ Flat Panel Display Design Guidelines Part 2
General-Purpose Tone Decoding and DTMF Detection ( Contains Scanned Text)
Texas InstrumentsThis report describes a single-chip solution for concurrent DTMF and general-tone decoding or expanded general-tone decoding only. These facilities are provided on a special program on the TMS320C17 or TMS320E17. The term TMS320C17 applies to both throughout the report.The report covers the following topics:- Theory of Operation - Software - TMS320C17 Features - Hardware
Power Loss Calculation With CSI Consideration for Synchronous Buck Converters (Rev. A)
Texas InstrumentsThe synchronous buck converter is a widely used topology in low-voltage, high-current applications. Low-power loss and highly efficient synchronous buck converters are in great demand for advanced mic
New Phase-Locked-Loops Have Advangs as Freq to Voltage Cnvrtrs (Rev. B)
Texas InstrumentsThis application report discusses new phase-locked-loops that have advantages as frequency to voltage converters.
AN-1700 LMX9838 Cable Replacement (Rev. A)
Texas InstrumentsThis application report describes the main features and configurations required to implement the LMX9838as a cable replacement into a system.
Controlling Sine Wave Generator With Serial Port Using TMS320F240 EVM
Texas InstrumentsThis application report explains how the EVM Application #9 creates a 2 channel sine wave generator using the 12 bit digital-to-analog converter (DAC) of the Texas Instruments (TI)(tm) TMS320F240 Evaluation Module (EVM). The document contains:- An overview that includes information on the commands that control the sine waves- Information on each of the three modules used- Details on how to
Programming External Nonvolatile Memory Using SDFlash for TMS320C28x Devices
Texas InstrumentsThe C28xxx generation of microcontrollers can connect to external nonvolatile memory through a variety of interfaces including parallel serial peripheral interface (SPI) and inter-integrated circuit (I2C). This application report discusses how to write drivers for your external nonvolatile memory to allow for in-place programming using SDFlash an application provided by Spectrum Digital Inc. A
AN-1440 LM4962 Stereo Ceramic Speaker Driver AN- (Rev. B)
Texas InstrumentsThis application note provides information on the performance of the LM4962 and the LM4951 in a stereo application.
TPS61150 Dual Output Boost Converter Drive Up to 14 WLED Keypad LCD Backlight
Texas InstrumentsThe TPS61150/1 is a high-frequency boost converter with two regulated current outputs for driving white light-emitting diodes (WLED). The reference design and applications examples in this document sh
AIC31xx/DAC31xx Devices and EMI Filtering on Speaker Outputs
Texas InstrumentsTLV320AIC3100,AIC3110,AIC3111,AIC3120,DAC3100,DAC3120 AIC31xx/DAC31xx Devices and EMI Filtering on Speaker Outputs
Metastability Performance Of Clocked FIFOs (Rev. A)
Texas InstrumentsThis document helps the user understand the metastable performance of TLI clocked FIFOs in asynchronous-system applications. A basic discussion of metastable-operation theory the equations to calculate metastable failure rates for 1- and 2-stage synchronization and an approach used for synchronizing the state flags on a series of TI clocked FIFOs is provided. A test setup to measure the failure
