Automotive, industrial, medical, and many other applications use sensitive analog circuits that must perform their function while remaining immune to noise disturbances in their local environment. Many of these disturbances occur on nearby “noisy” circuits located on the same printed circuit board (PCB), while other interference can be picked up by cable interfaces that couple noise onto the PCB and its circuits.

One of the best ways to reduce electromagnetic interference (EMI) on PCB designs is through intelligent use of operational amplifiers (op amps). Unfortunately, op amps are often overlooked as a tool for reducing EMI in many applications. This may be due to the perception that op amps are susceptible to EMI and that extra steps must be taken to enhance their immunity to noise. While this is true of many older devices, designers may not be aware that newer op amps often have superior immunity performance over previous generations. Designers also may not understand or consider the key benefits that an op amp circuit can provide for reducing noise in their system and PCB designs. This article reviews sources of EMI and discusses op amp characteristics that aid in mitigating near-field EMI on sensitive PCB designs.

This application report describes methods to interface TPS57xxx-Q1, TPS65320-Q1 Family, and TPS65321-Q1 devices to an external system clock. It proposes a new AC-coupled interface circuit avoiding any DC-bias conditions on the RT/CLK pin. This document also discusses important design details and provides optimizations of existing clock-interface circuits.

The device can support VI voltages up to 4.8 V. While the AVDD and ELVSS converter do not change their operation modes for VI > 4.5 V the ELVDD boost converter operates in “Diode-Mode” to support a lower output voltage than its input voltage.

The TLV320AIC24 innovation is the smart-time division multiplexed serial port (SMARTDM™) that optimizes the DSP performance with an advanced synchronous 4-wire serial port in TDM format for glue-free interface to popular DSPs (i.e. C5000 C6000) and mi

This application note describes the usage of the code conversion application delivered with version 2.0.0 (and above) of the MSP432P401R device header files. In these revisions of the MSP432P401R device header files, the coding style has been adapted to CMSIS. This may lead to compilation errors in user code if the code is not converted. MSP430™ style register definitions have also been removed with exception of legacy 16-bit IPs (see msp432p401r_classic.h).

In addition, certain MSP430 style definitions have changed. Therefore, TI recommends that you run the code conversion application even if you do not use CMSIS style definitions.

For details on what has changed in the device headers, see the release notes of the IDE support file packages.