System designers are continuously seeking ways to improve signal integrity increase speed and reduce power consumption in personal computers telecommunication equipment and other electronic systems. The Texas Instruments (TI) next-generation Advanced Ultra-low-voltage CMOS (AUC) octals and Widebus(TM) devices are designed to achieve these goals. These devices are designed for a 0.8-V to 2.7-V
This application brief presents phase-noise data taken on Texas Instruments CDC7005 jitter cleaner and synchronizer PLL. The phase noise performance of CDC7005 depends on thephase noise of the reference clock the voltage-controlled crystal oscillator (VCXO) clockand the CDC7005 itself. This applications brief shows the phase noise performance of the CDC7005 clock synthesizer at the most popula
TI frame transfer charge coupled devices (CCD) image sensors can be used in a wide variety of applications with the following topology options: one to three serial registers transfer gates a multiplexer separate reset lines center clearing drains and electron-hole recombination or lateral-overflow-drain antiblooming protection. This document describes the timing design for the TI frame transf
A low-side, current-sensing resistor in a fast-charge control circuit generates a small voltage drop between the low side of the battery pack and ground. This drop is not a problem in most cases; howe
This application report explains a technique that uses two MSP430™ microcontrollers to expand the maximum number of LCD segments that can be driven with a single controller. Additional benefits of the technique include increases in available memory data storage (RAM) and I/O control lines. These benefits are realized without the need for an external LCD driver circuit. The use of a second
The development of realistic predictions to assist the power supply engineer during the control loop design process is facilitated in this application report by appropriate small-signal and bode plot analysis the validity of which is verified through simulation results.
Sources of noise generation are pervasive in contemporary industrial applications. Unwanted noise presents one of the major problems in measuring power or protecting circuits in such an environment. Knowing the characteristics and understanding the behavior of noise sources are valuable to designers and users of electronic circuits. The first part of this report defines some fundamental concepts o
The dual-band handset market is expanding very rapidly due to the increase in customers requiring roaming capability. The customer also demands that handsets have an increase in features while keeping
This document describes a parallel video restoration system for restoring old motion picture archives. A Gaussian-weighted bi-directional 3-D auto-regressive (B3D-AR) algorithm is used to alleviate the presence of noise. The equations implemented by the system are presented. Parallel implementation and load balancing on an array of fifteen TMS320C40 parallel floating-point digital signal processo
This paper shows the implementation of a low cost active noise control (ANC) on the DSP Starter Kit TMS320C26 [1]. The ANC system uses a filtered-x LMS adaptive algorithm [2] with on/off-line path cancellation estimates [345]. The system consists of an error microphone plus a signal amplifier two powered speakers (primary and secondary source) and the controller (the DSP Starter Kit). The t
This application report describes a sample implementation of a manufacturing line test program for RF4CE products. It is based on RemoTI-Linux which is the Linux host driver for CC253x RemoTI Network Processor (RNP). It includes the ability to setup a fake pairing between the remote control and target side how to enter test mode how to change RF parameters and so forth. It helps customers to u
This document gives a complete overview of the register settings required to adjust the output power of the CC2430 device. The figures and tables within this document include typical output power harmonics and current consumption at the different register settings. There are also schematics showing the power amplifier for CC2430.