TPS65921 PCB Layout Guidelines

This document contains information and examples on accessing MMC/SD FLASH 7 cards through the C5509 MMC Controller operating in the native mode. The document provides an overview of the native mode functionality including programming flow for the typical tasks that the user encounters when interfacing to the MMC cards in the native mode. For each operation the procedures are highlighted with tab

Automated speech recognition (ASR) technology has been a bedfellow of cellular phone technology for many years. The benefits of combining the two technologies are obvious; the less time and focus a driver gives to placing a call the more attentive he is to operating a vehicle. This document explains ASR technology implemented on a TMS320C2x DSP and shows the accuracy of this design.

This application note will explore how the layout of your DC/DC power supply can significantly affect theamount of EMI that it produces. It will discuss several variations of a layout analyze the results andprovide answers to some common EMI questions such whether or not to use a shielded inductor.

AN-503 COMBO II Codec/Filter - Who Says Analog Can't Shrink

This application report discusses a solution to the additional power required in those PoE applications that exceed the power requirements defined in the current IEEE802.3af standard. Specifically the document offers a four-pair solution for 31-W to 35-W powered devices.

AN-935 Upgrading from the MB150X to the National LMX1501A: Replacement Issues

Stellaris App Note (all Ethernet through Blizzard) an01261.pdf an01261.pdf LM3S_Series_SPMA025B_ZHCA439 Stellaris

Many FIFOs being released today include programmable almost-empty and almost-full flags. TI?s newly released SN74V2x5 FIFOs are functionally equivalent to devices offered by IDT and are pin-for-pin compatible. The programmable flags can be used to provide interrupt signals when used in digital signal processor (DSP) and microprocessor applications. Additional configurations use the programmable fl

Realistic wireless channel models consider the impact of multipath propagation. Since a transmitted signal is subject to reflections and refraction on walls surfaces and so forth the receiving node will see signals differing in phase and amplitude. Using more than one antenna allows the evaluation of different multipath scenarios to avoid or reduce the effects of fading and interferences. Diver

This application report describes and shows how to implement a direct thermocouple interface, without using the signal conditioning circuitry normally required for thermocouples. The thermocouple inte

TVP5160 VBI Quick Start

This document discusses the power consumption of the Texas Instruments TMS320DM6441 digital media System-on-Chip (DMSoC). Power consumption on the DM6441 device is highly application-dependent so a spreadsheet is provided to model power consumption for a user’s application. To get good results from the spreadsheet realistic usage parameters must be entered. The low-core voltage and other power d

The TLC320AD57C (?AD57C) is a sigma-delta stereo A/D converter providing 18-bit resolution with a signal-to-noise ratio of 97dB and a dynamic range of 91 dB. The device consists of two synchronous conversion path with a decimal decimation filter following the 64X oversampling sigma-delta modulator. This document describes the ?AD57C functions provides circuit configuration schematics and characte

This document provides an overview of a PLL clock driver. The advantages and disadvantages of PLLs and the cost in designs are discussed. TI manufactures three low-voltage high-performance PLL clock drivers the CDC2582 CDC2586 and the CDC2586.

Phase Locked Loop (PLL) is a fundamental part of radio wireless and telecommunication technology. The goal of this document is to review the theory design and analysis of PLL circuits. PLL is a simple negative feedback architecture that allows economic multiplication of crystal frequencies by large variable numbers. By studying the loop components and their reaction to various noise sources we

Wireless phones continue to gain additional features making them more valuable to the end user. Many of these features involve increased audio functionality and hence some additional design effort on the audio portion of the phone. This paper gives an overview of audio amplifiers before describing different audio architectures that can be used to implement features like ear-bud speakers stereo

MSP430 microcontrollers are designed specifically for ultra-low-power applications. Features such as multiple low-power modes instant wakeup intelligent autonomous peripherals and much more to enable such ultra-low-power capabilities. Texas Instruments provides valuable tools to help the programmer fully use these benefits and optimize power consumption of the target application. This app