KeyStone DDR3 Initialization (Rev. D)
Texas InstrumentsThe initialization of the DDR3 DRAM controller on KeyStone I DSPs is straightforward as long as the proper steps are followed. However, if some steps are omitted or if some sequence-sensitive steps ar
Improved Device Noise Performance For the 3650 Isolation Amplifier
Texas InstrumentsThe 3650 is an optically coupled differential input isolation amplifier having programmable gain. Noise for the 3650 is specified to 4u Vrms (typ) on the input stage of the isolation barrier and 65u Vrms (typ) on the output stage. The gain of the 3650 is controlled using exernal resistors on the input stage. In low gains the noise performance of the 3650 is dominated by the output stage noise f
Designing with the DRV421: Closed Loop Current Sensor Specifications
Texas InstrumentsDesigning with the DRV421: Closed Loop Current Sensor Specifications DRV421
UCC39421 3.3V SEPIC Evaluation Board (Rev. B)
Texas InstrumentsThe UCC39421 SEPIC demo board implements a complete 330-kHz, 3.3-V SEPIC converter. The user needs only to supply an input voltage and a load. A list of materials giving the component part numbers and
Analog Applications Journal July 2001 Issue
Texas InstrumentsAnalog Applications Journal July 2001 Issue Online
Current Feedback Amplifier Analysis And Compensation (Rev. A)
Texas InstrumentsCurrent-feedback amplifiers have ideal closed-loop gain equations identical to voltage-feedback amplifiers but the similarity ends there. The detailed gain equations for the current feedback amplifer are developed here for the inverting and noninverting circuits. This paper goes beyond the gain analysis as it develops the stability criteria and discusses compensation.
MPEG-2 High Definition Decoder on the DM642 EVM
Texas InstrumentsThe software demonstrates the MPEG-2 high-definition (HD) decoder running on the DM642 Evaluation Module (EVM). The demonstration uses the MPEG-2 HD decoder to decode the MPEG-2 HD bitstream and display the decoded frames on the HD output device.
The demonstration uses:
- MPEG-2 decoder library optimized for a DM642 EVM
- MPEG-2 decoder library implemented using XDAIS interfaces
- Samp
3.6V ? 5.5V Input, LDO Reference Design for MSP430 (Rev. A)
Texas InstrumentsThis reference design is presented to help application designers and others who are trying to use the MSP430 in a system with an input voltage in the range of 3.6 V to 5.5 V and who are also intereste
Powered Device Controllers Comparison
Texas InstrumentsTwo generations of powered device (PD) controllers are available from Texas Instruments for Power-over-Ethernet PD solutions. They are the TPS2370/TPS2371 and the TPS2375/TPS2377. While they are largely pin-compatible some differences between these two families of PD controllers make the TPS2375 and TPS2377 the preferred devices. This report explains the major differences between the two families
Voltage Regulator Controls Scanner Lamp Brightness
Texas InstrumentsVoltage Regulator Controls Scanner Lamp Brightness
Designing Overcurrent protection for TPL7407L Peripheral Driver
Texas InstrumentsMicrocontroller units (MCUs) are generally limited with lower drive on the I/Os. Most of the applicationsrequiring MCU boards to drive high-current loads need discrete implementation and additional components which use a lot of board space. This board space is called a peripheral driver section. The TPL7407L device is an integrated peripheral driver with seven channel drivers inside. The TPL740
Implementing Continuously Programmable Digital Filters w/ TMS320C30/40 DSP (Rev. A)
Texas InstrumentsSystems engineers must apply real-time digital hardware solutions to signal processing problems to achieve the goals of reliability repeatability and flexibility. DSP offers the only such solution for many applications. Digital filter components are an integral part of many DSP systems. In particular continuously programmable digital filters (CPDFs) offer a broad range of high-tech applicatio
TMS320C6000 DMA Example Applications (Rev. A)
Texas InstrumentsThe TMS320C6000? on-chip direct memory access (DMA) controller from Texas Instruments is used to transfer data between two locations in the memory map in the background of CPU operation. Typically the DMA is used to:Transfer blocks of data between external and internal data memories Restructure portions of internal data memory Continually service a peripheral Page program s
TPIC6595 Power+ Logic(TM) 8-Bit Shift Reg. With Low-Side Power DMOS Switches (Rev. A)
Texas InstrumentsThe TPIC6595 is a monolithic device that contains eight 1.5A/45-V low-side DMOS power switches combined with the logic functions of an SN74HC595 and packaged in a 20-pin dual in-line plastic package (DIP) or wide body surface-mount package (DW). The TPIC6595?s outputs are inverted relative to those of the SN74HC595. This document provides a functional description of the TPIC6595 and detailed app
Echo Cancellation S/W for TMS320C54x
Texas InstrumentsThis application note describes how to realize an Electrical Echo Canceller using the LMS instruction of the TMS320LC54x series DSP. Thanks to this compact instruction it is possible to perform the Prediction Filter (FIR) and the weight updating at the same time. The software described is based on the Leaky Normalized Least Mean Square adaptive (LNLMS) filter with single precision (16 bit) coeff
AN-260 A 20-Bit (1 ppm) Linear Slope-Integrating A/D Converter (Rev. B)
Texas InstrumentsThis application report discusses how combining an “inferior” 20 year old A/D conversion technique with amicroprocessor a developmental A/D converter achieves 1 part-per-million (20-bit) linearity.
DN010 -- Close-in Reception with CC1101 (Rev. B)
Texas InstrumentsDN010 -- Close-in Reception with CC1101
