NXP and ON Semi to offer KNX eval board for building automation networks

ON Semiconductor and NXP have introduced an evaluation board and complete reference design for power efficient Twisted Pair (TP) networks. The evaluation board, which will be available in May, is undergoing the final phases of formal KNX certification.

“This new twisted pair networks development board has been specifically designed to assist building automation customers by simplifying their design process with a ready-to-implement, energy efficient KNX TP solution for applications such as lighting switches and control, HVAC control, shutters  and occupancy detection,” said Ryan Cameron, vice president of Industrial and Timing products for ON Semiconductor. “By teaming up with NXP, we were able to jointly create a complete, highly power efficient solution that enables customers to reduce both their development costs and time to market for KNX applications based on Cortex-M processor family.”

“The stability and flexibility of KNX make it a tremendously popular choice for intelligent wired home and building automation networks. This evaluation board will help developers create cost-efficient KNX designs very quickly, while taking advantage of the very low active power consumption of the NXP Cortex-M0 microcontroller, as well as its powerful 32-bit architecture,” said Jan Willem Vogel, senior director of marketing, Appliances, Energy and Automation segment, NXP Semiconductors.

ON Semiconductor is demonstrating the KNX TP evaluation board and reference design this week in Frankfurt, Germany at the Light+Building 2012 show, in Hall 8 at stand F98.
The TP evaluation board and reference design features NXP’s low-power Cortex-M0 microcontroller and ON Semiconductor’s soon to be launched NCN5120 receiver-transmitter IC.

The first evaluation boards will be available with the NXP LPC1227 microcontroller. Based on the ARM Cortex-M0, NXP’s LPC1100 and LPC1200 microcontrollers provide compelling solutions for home and building automation products. The LPC1100 and LPC1200 series include up to 128 KB Flash and 8 KB SRAM, and offer configurable peripherals ideally suited for energy-efficient controls and KNX nodes. With performance levels up to 45 DMIPS, a single NXP Cortex-M0 microcontroller delivers the resources required to run a KNX stack, with enough bandwidth available for the end application.

ON Semiconductor’s NCN5120 receiver-transmitter IC is suitable for use in KNX twisted pair networks (KNX TP1-256). It supports the connection of actuators, sensors, microcontrollers, switches or other applications in a building network. Featuring built-in mixed-signal technology, the NCN5120 integrates the analogue front end, digital processing capability and power supply. It provides a 20 volt (V) regulator and two high efficient DC-DC converters generating a fixed 3.3 V and an adjustable 3.3 V to 21 V regulated voltage from the bus with 100 milliamp (mA) drive capability each. This transceiver is ideal for high power applications and has been designed to reduce the bill of materials while still supporting safe and reliable coupling to the bus thanks to features such as selectable fan-in mode, bus voltage and temperature monitoring.

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