The MCP2030A is a stand-alone Analog Front-End(AFE) device for Low-Frequency (LF) sensing and bidirectional communication applications. The device has three low-frequency input channels.Each input channel can be individually enabled or disabled.The device can detect an input signal with amplitude as low as ~1 mVPP and can demodulate an amplitude-modulated input signal with as low as 8% modulation depth. The device can also transmit back the data using the same LF (LF-Talk back) carrier frequency.The MCP2030A can be used for various LF communications such as Passive Keyless Entry, Bodycom, and long range access control applications.

   Three input pins for analog input signals

   High input detection sensitivity (1 mVPP, typical)

   High modulation depth sensitivity (as low as 8%)

   Three output selections:- Demodulated data- Carrier clock- RSSI

   Input carrier frequency: 125 kHz, typical

   Input data rate: 10 Kbps, maximum

   Eight internal configuration registers

   Bidirectional transponder communication (LF talk back)

   Programmable antenna tuning capacitance (up to 63 pF, 1 pF/step)

   Programmable output-enable filter

   Low standby current: 6.5 µA (with three channels enabled), typical

   Low operating current: 19 µA (with three channels enabled), typical

   Serial Peripheral Interface (SPI) with external devices

   Supports Battery Backup mode and batteryless operation with external circuits

   Industrial and Extended Temperature Range: -40°C to +85°C