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NXP unveils smallest combo chip for automotive keyless entry

Posted: 27 Sep 2012     Print Version  Bookmark and Share

Keywords:automotive  keyless entry  car key 

NXP Semiconductors N.V. unveils the NCF2960 said to be the world's smallest combo chip solution for automotive keyless entry with immobilizer functions.

The compact solution uniquely integrates a security transponder, micro RISC kernel, and multi-channel radio transmitter in a single package.

The NCF2960 chip's package size has been reduced by 44 per cent compared to the previous generation. Available in a tiny 24-pin QFN package, it requires only 4mm x 4mm of board space, providing key fob manufacturers with maximum design freedom in selecting form factors and in placement of command buttons.

One of the chip's key features is its RF multi-channel capability. Rather than transmitting its signal on one frequency only, the integrated transmitter enables the signal to be transmitted on multiple frequency channels. Frequency hopping maximises the reliability of car keys in environments suffering from RF jamming. Contrary to conventional devices, NXP's NCF2960 also features stabilised output power in order to minimise the impact of varying battery voltage and temperatures.

The NCF2960 also enables cost savings due to a small PCB footprint, as well as optical inspection of solder connections rather than using complex x-ray processes. Optical inspection is made possible by the 24-pin QFN package with wettable flanks.

Engineering samples of NCF2960 are available.





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