Because of the programmability of the digital signal processor the TMS32010 can also be programmed to handle Dual-Tone MultiFrequency (DTMF) encoding and decoding over telephone lines. For a system already performing digital signal processing functions using the TMS320 this DTMF capability may be obtained at no additional hardware cost. This report is a reprinted article from Electronic Design N
This application report presents a solution to interfacing the ADS8382 18-bit 600-KSPS serial interface converter to the TMS320C6713 DSP. The hardware solution is made up of existing hardware: the ADS8382EVM 'C6713 DSK and 5-6K Interface Board. The software demonstrates how to use an EDMA and Timer peripheral to collect data at 598 kHz. Discussed also are some of the key points to remember when
While in the process of reviewing Texas Instruments applications notes including those from the recently acquired Burr-Brown ? I uncovered a couple of treasures this handbook on active RC networks and one on op amp applications. These old publications from 1966 and 1963 respectively are some of the finest works on op amp theory that I have ever seen. Nevertheless they contain some material
The TMS320C5x and TMS320C54x contain a host port interface (HPI) functional block that interfaces to a microcontroller unit without external hardware. This document describes the hardware considerations for the interface design. The appendix provides the TMS320C5x assembler source code for the kernel software and software bootload sequence.
This document describes a new method of accessing IEEE 1149.1 based-boards in the backplane environment. The method can be used with a simple backplane to board connection or expanded to include the commandable features useful in the backplane environment. The document provides details on the addressable shadow port (ASP) and the shadow protocol that provide the means of connecting the backplane a
This report describes interface circuits for the TMS32010 to asynchronous inputs and to external memory devices such as external ROM or RAM. A description of hardware peripheral interface device produced by Pacific Microcircuits is also included which eases the TMS32010 interface to both external memory and codec devices.
The PGA309 programmable gain amplifier generates three primary types of noise: broadband noise noise from the instrumentation amplifier auto-zero circuit and noise from the Coarse Offset auto-zero circuit. Noise at the PGA309 output can be reduced by limiting the bandwidth with a simple filter. This application note describes how to select the filter components in order to get the desired bandwi
Analog designers are frequently required to develop circuits that convert high-voltage signals to levels acceptable for low-voltage data converters. This paper describes several solutions for this common task using modern amplifiers and typical power supplies. Five examples of conditioning ±10V bipolar signals for low-voltage single-rail analog-to-digital converters(ADCs) are presented:
Conventional regulators have a high drop-out voltage that is a function of the total output current.However with just a regulator chip an external transistor and a few passive components this designforms a high output current regulator with a limited input voltage and high efficiency. The circuit presentedhas a drop-out of 0.7V at 5A load current and 1.3V at a current level of as high as