Analogue, Mixed Signal, LSI


Standalone, analog front end for wireless authentication applications

25 January 2006 Analogue, Mixed Signal, LSI

Microchip's first standalone, analog front end (AFE) device for smart, low frequency (125 kHz typical) sense-and-response applications, such as hands-free access to vehicles or homes, low frequency sensor commands in tyre pressure monitoring systems and other wireless authentication applications, has been released.

As a standalone device, the new MCP2030 AFE can be used alongside any of Microchip's PIC microcontrollers in a range of low-cost passive access, intelligent transponder and smart sensing applications.

With a high level of adjustable input sensitivity (3 mVpp typical), modulation depth sensitivity options as low as 8%, and three input channels for reliable 3-axes reception, the MCP2030 offers advanced performance with regards to range, antenna orientation and environmental 'noise'. Each channel of the AFE function is dynamically tunable via the device's SPI interface eliminating expensive hand-tuning. The device also offers an intelligent wake-up filter that extends battery life.

Microchip offers the Passive-Keyless-Entry Reference Design Kit to support wireless authentication application development. The kit features Microchip's PIC16F639 microcontroller, which is an integrated device that includes the MCP2030 AFE, alongside the other components required for a passive-keyless-entry design.

The MCP2030 is offered in 14-pin TSSOP, SOIC, and PDIP packages.



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