This application report describes the design of an active 10-MHz second-order Butterworth low-pass filter useful for band-limiting applications. As an active component TI's operational amplifier type THS4001 which has a bandwidth of 300 MHz was used. The design of the filter described in this report is typical of proactical applications and the steps involved in calculating component values ca
Pi/4 D-QPSK (Pi/4 shift Differential-Quadrature Phase Shift Keying) is a four level modulation scheme first proposed by Baker in 1962 and is currently the focus of intensive research. The scheme is currently implemented in the American Digital Cellular Japanese Handy Phone and the European TETRA systems.The aim of this undergraduate project was to implement a Pi/4 Shift D-QPSK baseband modula
The first optimization step that can be performed on C source code for the TMS320C6000™ DSP platform is to use intrinsic operators. These are built-in functions in the compiler that can be directly translated to assembly code for faster execution. The C6000 DSP family fixed-point processors are organized into two main families: the TMS320C62x™ DSP and the TMS320C64x™ DSP. The C6
This application note describes how to modify the TI-MAC (v1.3.0) / Z-Stack (v2.2.0) software releases for the CC2530 SoC to support CC2591 PA/LNA controls.
This application report describes and shows how to implement a single-chip thermocouple interface without using the signal conditioning circuitry normally required for thermocouples. The thermocouple
Flexible AC Transmission Systems (FACTS) are thyristor based means for highly dynamic load flow control in electrical power supply and distribution. These newappliances have an impact on network parameters like transmission angle nodevoltage line current and harmonics. Thus the control of FACTS equipmentprovides a highly dynamic view of these parameters. For this purpose wedeveloped th
This application report discusses the power consumption of the Texas Instruments TMS320DM6467T digital media System-on-Chip (DMSoC). Power consumption on the DM6467T device is highly application-dependent; therefore a spreadsheet that estimates power consumption is provided along with this document. To obtain good results from the spreadsheet realistic usage parameters must be entered (see Secti
SYS/BIOS is designed for use in embedded applications that need real-time scheduling synchronization and instrumentation. It provides preemptive multitasking hardware abstraction and memory management.This application report uses an adaptation of the capacitive touch library to interface with SYS/BIOS. Thisinterface abstracts the capacitive touch interface promoting use of the graphical c
Most battery monitor ICs from TI including the bq2018 and bq2019 includes a single-wire HDQ serial data interface. Host controllers configured for either polled or interrupt processing use the interface to access various IC registers. The purpose of this application note is to cover most of the communication related topics for these devices.
Modern trends are driving the need for lower supply voltages across many system-level designs. As most processor voltage levels continue to decrease in the interest of achieving the lowest possible power consumption peripheral devices maintain a need for higher voltage levels creating potential for voltage discontinuities within a system. To remedy this mixed voltage system incompatibility a vo