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Application Notes

UCC38C44 12-V Isolated Bias Supply (Rev. A)

Texas Instruments
This reference design describes a discontinuous peak current-mode flyback converter whose input voltage is generated from the output of a universal power factor correction circuit. The converter is designed to operate at a switching frequency of 225 kHz requires minimal parts and supports an isolated 12-V 3-W output and a non-isolated 12-V 1-W output ideally suited for chip bias and voltage f

Video Operational Amplifier

Texas Instruments
In analog technology important advances are being made in video operational amplifiers both in processing and in circuitry. The following article is concerned exclusively with explaining these key topics and the new circuit designs.

CAN Bus Bootloader for RM48x MCU

Texas Instruments
A bootloader enables field updates of application firmware. A controller area network (CAN) bootloaderenables firmware updates over the CAN bus. The CAN bootloader described in this application report is based on the Hercules™ ARM® Cortex™-R4 microcontroller. This application report describes the CAN protocol used in the bootloader and details each supported command.

mu-Law Compression on the TMS320C54x

Texas Instruments
This document discusses how to perform a software mu-law compression algorithm using the TMS320C54x. The algorithm requires a minimum number of instructions and does not have the memory requirement needed for a lookup table.

Hercules SCI With DMA

Texas Instruments
This application report summarizes the necessary steps to setup the direct memory access controller (DMA) to transfer data between the SCI and the data RAM of the microcontroller freeing the CPU during the entire message transmission. Detailed code examples are provided as guidelines for the different setup steps.

DRV2605 Device Setup Guide

Texas Instruments
DRV2605 DRV2605 Device Setup Guide

Thermal Derating Curves For Logic-Products Packages (Rev. B)

Texas Instruments
Thermal metrics such as qJA and qJC are used to compare thermal performance of plastic integrated circuit (IC) packages. The thermal conductivity of all materials of the IC packaging and of the test board affect the thermal resistance values reported by semiconductor manufacturers. Recent advancements in reporting thermal data include standard test-board designs. Texas Instruments (TI) has publi

Basics of Voltage-Level Translation

Texas Instruments
Basics of Voltage-Level Translation

SN65DSI83, SN65DSI84, and SN65DSI85 Hardware Implementation Guide (Rev. A)

Texas Instruments
SN65DSI83, SN65DSI84, SN65DSI85 SN65DSI83, SN65DSI84, and SN65DSI85 Hardware Implementation Guide /HPA/ICP/CCI-Consumer_Computer_IF

DN-71 Using Copper PCB Etch for Low Value Resistance

Texas Instruments
Current sensing in power supplies and motor controls demand the use of a very low value resistor. Each application varies in need for resistance value power rating size form factor inductance temperature coefficient and accuracy. To meet some of these applications the copper of a printed circuit board (PCB) can be utilized but has some distinct limitations. This design note provides design

Buck Regulator Topologies for Wide Input/Output Voltage Differentials

Texas Instruments
Buck Regulator Topologies for Wide Input/Output Voltage Differentials

Support HDMI 1.3 12-Bit Deep Color With the TMDS341A

Texas Instruments
Supporting HDMI 1.3 12-bit deep color with the TMDS341A

An All-Digital Automatic Gain Control ( Contains Scanned Text)

Texas Instruments
This report describes an all-digital implementation of an AGC on a TMS320C17 DSP. The AGC is designed specifically for modem applications.- The first section provides an overview of modem receiver structure and implementation.- The second section discusses the AGC block diagram and the motivation for using an AGC in a modem receiver.- The third section covers the AGC hardware and s

Impact of TMS470R1x ZPLL Jitter on CAN Communication (Rev. A)

Texas Instruments
The first section describes the impact of the clock jitter introduced by the analog phase−locked loop module (ZPLL) on the system clock (SYSCLK) and the peripheral clock (ICLK). In the second section the resulting impact on the CAN communication is explained.

Optimizing the UCC28019A to Avoid Audible Noise

Texas Instruments
The UCC28019A and its predecessor the UCC28019 are eight-pin active power factor correction (PFC) controllers that use the boost topology and both operate in continuous current conduction mode.

AN-1729 DP83640 IEEE 1588 PTP Synchronized Clock Output (Rev. D)

Texas Instruments
The DP83640 provides a highly precise low-jitter clock output that is frequency-aligned to the masterIEEE 1588 clock and can be phase-aligned as well. Empirical testing shows very low jitter (less than 1 nspeak-to-peak and standard deviation when using the FCO source) and precise phase alignment. Whiletest results show that the FCO has superior long term jitter performance using the PGM as

Dual Power Supply Recommendations for the TMS320C206

Texas Instruments
This document describes two options used to supply power to the Texas Instruments (TI)(tm) TMS320C206 digital signal processor (DSP). The TMS320C206 DSP requires 3.3V for the CPU and 5.0V for the I/O. The first solution applies when a design already has a regulated 5.0V power supply and requires only a 3.3V (LDO) Low Dropout regulator. The second solution applies an unregulated voltage input t

OMAP-L1x/C674x/AM1x SOC Architecture and Throughput Overview

Texas Instruments
This article has been contributed to the TI Developer Wiki. To see the most recently updated version or to contribute, visit this topic at:<p><a href=http://wiki.davincidsp.com/index.php/OMAP-L1x/C674

Hardware auto-identification&software auto-configuration for the TLV320AIC10 DSP Codec - a "plug-and-play" algorithm

Texas Instruments

The analog interface circuit (AIC), also called a modem Codec, is a complete data acquisition system on a chip for general-purpose telephony/speech applications such as: modem analog interface, voice-band audio processing, noise cancellation/suppression, hands-free communication, security voice systems, tone generation, echo cancellation, voice-over-internet protocol (VoIP), and industrial process control. The AIC is normally interfaced to a digital signal processor (DSP). This approach has a number of advantages and cost-saving benefits that cannot be realized with traditional Codec analog interfacing. The benefits include:

  • lower cost,
  • simple interface design and fewer components,
  • greater system reliability due to fewer components,
  • lower power consumption,
  • higher performance, and
  • high programmability.

Displaying 81 - 100 of 6622

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