App note: Water and condensation safe touch sensing with the NXP capacitive touch sensors

  App note (PDF) from NXP on water and condensation resistant capacitive touch sensors. This application note explains the unique auto-calibration feature of the touch sensor family from NXP and provides guidelines for enhanced water and condensation safe operation, focusing on applications with capacitive touch buttons.

App note: NXP Smartphone Quick-Jack Solution

An interesting app note (PDF) from NXP where you can interface your mobile phone with a microcontroller via the audio 3.5mm jack. Inspired by the University of Michigan’s Project HiJack, the NXP Smartphone Quick-Jack Solution repurposes the standard 3.5mm stereo audio jack found on most smartphones into a self-powered data channel that makes communication with […]

App note: Sending I2C-bus signals via long communications cables

Extend I2C communication distance with this app note (PDF) from NXP. Reliable I2C-bus communication at high data rates, and over many meters, can be achieved using widely available twisted- pair communication cable (e.g. Category 5e and similar 4-pair cables, as typically used for Ethernet communications). The two bidirectional I2C-bus signals, SDA and SCL, are split […]

App note: Guidelines for full-speed USB on NXP’s LPC microcontrollers

Hook up your LPC microcontrollers using USB full-speed connectivity using these guidelines from NXP app note Full-speed USB operates at 12 Mb/s, and although this is not a high data rate, observing some basic rules or guidelines will usually guarantee successful operation. This application note highlights some of the more important issues that you need […]

App note: microcontrollers and triacs easily connected

Here’s an application note from NXP on how to easily connect main triacs and microcontrollers. This application note describes the easy connection of NXP LPC microcontrollers and three – quadrant (Hi-Com) triacs to control any resistive or inductive load at mains voltage. A one-for-all control method is presented that uses an innovative, patented, current zero-crossing […]

App note: Interfacing 3V and 5V applications

Another app note from NXP/Phillips Semiconductor on I/O voltage level shifting. Many reasons exist to introduce 3V systems, notably the lower power consumption for mobile applications and the introduction of parts that use technologies with such fine geometries that 5V is simply not allowed any more. The introduction of the 3V standard as supply voltage […]

App note: properties and application of bypass capacitors

Another primer app note from NXP on capacitor bypassing. Bypass capacitors are applied between the power supply pins VCC and GND of integrated circuits. They reduce both the power supply noise and the effect of spikes on the supply line. They also provide instantaneous current demands of the integrated circuit as it switches. This application […]

Diamond package from NXP, the world’s smallest logic package

Drone refers us to this short video from NXP on very small pitch parts (0.35mm) and the challenges in mounting them. NXP debuts their new Diamond package which they report is over 25 percent smaller than their XSON package (suffix GN), previously the world’s smallest package. The video point out that this design retains the […]

NXP announces LPC800-MAX dev board

NXP has announced the LPC800-MAX – an mbed/Arduino development board based on the LPC812 – which will be released in April 2013. NXP is working with key partners to develop LPC800-MAX, a development board which combines mbed, LPCXpresso and Arduino connectivity, allowing users to choose and work with their favorite elements from each environment. The […]

NXP RF component manual

NXP has released the 16th edition of their RF component manual. It covers the full line of NXP RF offerings including their core technologies QUBiC4 and LDMOS, GPS LNAs, medium power amplifiers, IF gain blocks, satellite LNB ICs and CATV modules, amplifiers (low noise, variable gain, medium power and high power Doherty amplifiers), mixers, IQ […]

App note: Full-duplex software UART for LPC111x and LPC13xx

Here is an app note with source code describing how to implement a full-duplex software UART interface on LPC111x and LPC13xx microcontrollers. However, some applications require more UARTs than are available on the device. While the addition of an external stand-alone UART IC could be used in some of these situations, software based UARTs result […]

App note: PCB layout for analog to digital converters

NXP provides some PCB layout design guidelines for the ADC modules in their LPC1100 and LPC1300 microcontrollers. These ADC modules, like many microcontrollers, use the power supply voltage as a reference so special care has to be taken to eliminate noise: The microcontrollers in the LPC1100 and LPC1300 families are all equipped with a single […]