This application note presents the results of an examination of a two-node controller area network utilizing the SN65HVD230 3.3-V CAN transceiver and the TMS320F243, 16-bit, 5 V fixed point DSP with i

This is an informational document detailing points to be considered when updating an existing 10/100Mb/s Ethernet design using Texas Instruments DP83846 Ethernet Physical Layer (PHY) product to thenew DP83848C/I/YB PHYTER product. Although the basic functions of the device are similar differencesinclude feature set pin functions package and pinout and possibly register operation. The i

Once the bottom circuit board has been designed, the assembly guidelines for package-on-package (PoP) versions of the OMAP35xx processor and the memory device must be considered. <p> PoP packages ha

The input offset voltage of operational amplifiers (op-amps) arises from unavoidable mismatches in the differential input stage of the op-amp circuit caused by mismatched transistor pairs collector currents current-gain betas(B) collector or emitter resistors etc. This application report describes the effects of mismatched components on the input offset voltage and proposes using an external

The digital signal processing library (DSPLIB) is a set of C-callable assembly-optimized functions commonly used in signal processing applications. While TMS320C64x supports both little- and big-endian modes for better system integration the DSPLIB has been provided in little-endian mode only. Therefore there has been a strong request for big-endian support from users who need to use big-endian

Although it may seem that evaluation of high-speed circuit operation can be more quickly performed withcomputer simulation full bench evaluation cannot be supplanted. By integrating both of thesecomplementary tools the cycle time from component selection to finalized design can be reduced.

Designing the Digital Compensator For UCD91xx based Digital Power Supply

The UCC3918 Low On-Resistance Hot Swap Power Manager provides complete power management, hot-swap capability, and circuit-breaker functions. This design note describes the UCC3918 evaluation kit, whic

TPA310xDx Logic Pin Interface

TAS3103A Glitch Filter for ILC Lines

This application note covers thermal response considerations for sensors that come in a DSBGA package for measuring skin temperature for applications such as wearables such as fitness bands and medical devices.

It will specifically focus on the LMT70, a 0.88mm x 0.88m 0.13°C max accuracy (0.05°C typ) temp sensor over the human body temperature range, but learning can be applied to other temperature sensors that come in a similar package, whether they be analog or digital sensors. Contact temperature sensors, such as the LMT70, need to be placed in close contact with the surface that needs to be measured.

This can be quite challenging for the DSBGA package that is if fast thermal response is also necessary. Experimental results of different PCB layouts will be presented when measuring axillary.

This design note provides information concerning the designing of TIA/EIA-644 interface circuits. The TIA/EIA-644 standard is discussed including electrical characteristics interconnections line termination and noise immunity. Finally eye patterns are used to measure the effects of signal distortion noise signal attenuation and the resultant intersymbol interference (ISI) in a data transmis

Today's voltage regulator modules (VRMs) employ off-line SMPS techniques. Traditionally they are usually discarded when they fail because they are so challenging to debug and so inexpensive to replace. Investigation of these failed modules reveals some common failure modes. Some failures are caused by other systems' passive components that fail after repeated electrical stress. Recognizing these

This paper discusses a method by which the Texas Instruments (TI)(tm) TMS320C62xx or C62xx high performance fixed point DSPs overcome the traditional advantage held by floating point DSPs -- precision and speed.Using the Radix-4 Fast Fourier Transform (FFT) this document illustrates how extended precision arithmetic multiplication in particular can be performed on the 'C62xx. Using the te

In many TMS470R1x applications direct memory access (DMA) is used to move data between the system memory and peripherals to communicate with external devices. When the external device detects a data error a request (normally an interrupt) will be sent to the TMS470 to restart the unfinished DMA block transfer. This application note presents a generic software approach to restarting the DMA chan

This application report describes a digital thermometer design that uses the slope ADC capabilities of the Timer Port module on the MSP430x3xx microcontrollers. This report can be used more generally as a reference on how to connect resisitve sensors and reference resistors to the Timer Port module.

This application report provides an overview of electrostatic-discharge (ESD) test models failure modes protection strategies and Texas Instruments (TI) procedures to guard against ESD failures.