Digitally Programmable, Time-Continuous Active Filter
Texas InstrumentsProgrammable active filters have increased in popularity over the past decade. With the advent of switched capacitor topologies, filter parameters such as the natural frequency and filter Q can be cha
Understanding the Pwr Sup Require of PCI Bus Stnd-How to Protect the Dig Compnts (Rev. B)
Texas InstrumentsThis application report provides an analog design guide to the PCI system designers.
Multi-DC/DC Conversion & Color LED Control Integrated on a C2000 Microcontroller
Texas InstrumentsMulti-DC/DC Conversion & Color LED Control Integrated on a C2000 Microcontroller LED_SPRABR7_ZHCA515
TNETE2201 EVM Kit Setup and Usage
Texas InstrumentsThe Texas Instruments (TI)(tm) TNETE2201 EVM (evaluation module) kit is a tool used to evaluate and design high-speed prototypes using the TNETE2201 Ethernet Transceiver IC (10 mm x 10 mm TQFP plastic package). The EVM kit is used to evaluate device parameters while acting as a guide for high-speed board layout.The high-speed interface is selectable between a 50-ohm SMA connector and a GBIC s
Capacitive Touch Sensing, MSP430 Slider and Wheel Tuning Guide
Texas InstrumentsThis application report provides guidelines on how to tune capacitive touch sliders and wheels running on the MSP430? microcontrollers. It identifies the hardware and software parameters as well as ex
JEDEC Publication 95
Texas InstrumentsMany electronics companies have joined the Joint Electron Device Engineering Council (JEDEC) and the JC-11 Mechanical (Package Outline) Standardization committee to gain further understanding of industry package standards and to register their product lines. As a member of JC-11 the company receives a hardcopy of Publication 95 that generally is in the custody of the committee member. The publica
OMAP3530 Easy CUS Package PCB Escape Routing (Rev. A)
Texas InstrumentsThe OMAP3530 CUS package is designed with a new technology called Via Channel™ array. This technology allows for easy routing of the device in two signal and two power layers using standard 20 mil diameter and 10 mil finished hole size via; it is cost and time effective. This application report shows how to easily route the entire package by first routing one quadrant only and then copying i
Comparison of TI Voiceband Codecs for Telephony Applications
Texas InstrumentsThis application report describes the different types of voice-band CODECs for telephony applications such as client modem analog interface circuits central office line card CODEC/filter combos and voice-band audio processors. A summary of the characteristics of each is included.This report focuses on the recommended client modem analog interface circuits (AICs) fabricated by Texas Instrumen
Multicell Li-Ion and Li-Pol Battery Gas-Gauge Application Using the bqJunior
Texas InstrumentsThe bqJunior™ series of gas gauges are designed to operate from a single-cell lithium-ion or lithium-polymer battery. Many applications that could benefit from using these gas gauges use two or more lithium cells in series where the battery voltage exceeds the operating voltage for the bqJunior™ gas gauges. This application report describes a low-component count solution for using th
How to Optimize Your Target Application for RTDX Throughput (Rev. A)
Texas InstrumentsReal-Time Data Exchange (RTDX?) is a technology developed by Texas Instruments that enables real-time bi-directional communication between a digital signal processor (DSP) or microcontroller and a host application.
This document describes how to increase the target-to-host throughput of an RTDX target application. This document does not describe how to increase the host-to-target throughput alt
Flatlink Data Transmission System Design Overview (Rev. A)
Texas InstrumentsFlatLink is a data transmission system that can provide better than a 2:1 reduction in the number of signal lines used for synchronous parallel data bus structures with no loss in data throughput. To do this FlatLink takes single-ended data at clock rates of up to 68 MHz and increases the data signaling rate seven times up to 476 Mbps. The following report provides some design guidelinesfo
TPS62130/40/50 Sequencing and Tracking
Texas InstrumentsThe TPS6213x/4x/5x is a family of synchronous buck DC-DC converters with a wide operating input voltage range from 3 V to 17 V and adjustable output voltage of 0.9 V to 6 V. Because of the wide input and output voltage ranges, they are ideal for use in systems which contain multiple output voltage rails. This application note describes how to use the EN, PG, and SS/TR pins in tracking and sequencing applications in such systems which contain any combination of the TPS6213x, TPS6214x, or TPS6215x devices.
Driving Large LCDs with LCD Peripheral of the MSP430 (Rev. A)
Texas InstrumentsThe 4xx family of MSP430™ devices has two different types of integrated LCD drivers namely the LCD controller and the LCD_A controller.The 6xx family of MSP430 devices also has two different types of integrated LCD drivers namely the LCD_B controller and the LCD_C controller.This application report focuses on the LCD controller but the principles shown here apply to all versions.The
HS Load/Line Transient Jigs and App Rpt for Testing POL Regulators
Texas InstrumentsThese days high-speed and communication portable systems employ voltage regulators that demandfaster response time. It is necessary to generate steps in line voltage and load current that are fast withrespect to the regulator’s control loop response time. Lab equipment and many apparatus that use opampspassives and large driver chains are limiting the rise and fall times of the stimulus s
FOUR-WIRE RTD CURRENT-LOOP TRANSMITTER
Texas InstrumentsPlatinum Resistance Temperature Detectors (RTD)s are favored for demanding temperature measurement applications such as process control because of their excellent accuracy and sensor interchangeability. Combining an RTD with a Burr-Brown XTR105 forms a complete precision temperature to 4-to-20mA current-loop transmitter solution. Current-mode transmission gives superior noise rejection and is im
TPS23861 Power-On Considerations
Texas InstrumentsTPS23861 is an IEEE 802.3at compliant PSE controller containing both analog and digital circuits as well as an embedded processor. The VPWR pin supplies power to the internal analog circuits while the VDD pin supplies power for the digital circuitry and processor. Each power supply pin monitors input voltage and creates an internal power on reset for the internal circuits. Additionally the
