Application notes from Texas Instruments

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Application Notes from Texas Instruments

Implementing DDR2 PCB Layout on the TMS320C6424 DSP

This application report contains implementation instructions for the DDR2 interface contained on the TMS320C6424 digital signal processor (DSP) device. The approach to specifying interface timing for the DDR2 interface is quite different than on previous devices.

The previous approach specified device timing in terms of data sheet specifications and simulation models. The system designer was r

Ultra Small 5A, Adjustable Output Reference design using TPS54620

Texas Instruments

TPS54620 Ultra Small 5A, Adjustable Output Reference design using TPS54620

AN-815 Variable Range PWM A/D for COP820CJ (Rev. B)

Texas Instruments

This application report is an extension of the AN-607 Pulse Width Modulation A/D Conversion Techniqueswith COP800 Family Microcontrollers Application Report (SNOA118). The basic difference between theprevious version and this new approach (patent pending) is that the microcontroller can vary thecomputing range as required by the signal being measured. This can be done totally in software wit

AN-1336 LMH0030 or LMH0031 Control Port Bussed Operation (Rev. B)

Texas Instruments

In systems using multiple LMH0030 serializer and LMH0031 deserializer devices it is often convenient to connect their ancillary data and control ports to a host controller using a bus network. This reduces the amount of wiring and PCB area required for this function. When designing such a network it is necessary to understand how the devices are controlled and used in a manner similar to micropr

Measuring Board Parasitics in High-Speed Analog Design

Texas Instruments

Successful circuit designs using high-speed amplifiers can depend upon understanding and identifying parasitic PCB components. Simulating a design while including PCB parasitics can protect against unpleasant production surprises. This application report discusses an easy method for measuring parasitic components in a prototype or final PC board design by using a standard oscilloscope and low freq

MSP432 Platform Porting

Texas Instruments

The goals for this porting guide is to help developers accurately assess the effort to port an existing application from one MSP platform to another, ultimately to derive a porting strategy with compl

AN-1006 Phase-Locked Loop Based Clock Generators

Texas Instruments

AN-1006 Phase-Locked Loop Based Clock Generators

Independent Half Bridge Drive with DRV8837

Texas Instruments

DRV8837 Independent Half Bridge Drive with DRV8837

AN-259 DS3662-The Bus Optimizer

Texas Instruments

Application Note 259 DS3662-The Bus Optimizer

Usage of I2C for CDCE(L)949, CDCE(L)937, CDCE(L)925, CDCE(L)913

Texas Instruments

This 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

OTP Creation Guide

Texas Instruments

TCA8424 OTP Creation Guide

Smallest DSP-compatible ADC provides simplest DSP interface

Texas Instruments

Filters for Data Transmission

Texas Instruments

The 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 Instruments

The 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 Instruments

While 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 Instruments

The 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 Instruments

There 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.

TLC2201 and TLC2202 EMI Immunity Performance

Texas Instruments

AN-1237 RSDS™ Flat Panel Display Design Guidelines Part 2 (Rev. A)

Texas Instruments

AN-1237 RSDS™ Flat Panel Display Design Guidelines Part 2

General-Purpose Tone Decoding and DTMF Detection ( Contains Scanned Text)

Texas Instruments

This 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