Description:
The MCP2030 is a stand-alone Analog Front-End (AFE) device for Low-Frequency (LF) sensing and bidirectional communication applications. The device has eight internal Configuration registers which are readable and programmable, except the read-only STATUS register, by an external device.

Device Features:
• Three input pins for analog input signals
• High input detection sensitivity (3 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
• 8 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: 4 μA (with 3 channels enabled), typical
• Low operating current: 13 μA (with 3 channels enabled), typical
• Serial Peripheral Interface (SPI™) with external devices
• Supports Battery Back-Up mode and batteryless operation with external circuits
• Industrial and Extended Temperature Range: -40°C to +85°C (industrial)

Typical Applications:
• Automotive industry applications:
    - Passive Keyless Entry (PKE) transponder
    - Remote door locks and gate openers
    - Engine immobilizer
    - LF initiator sensor for tire pressure monitoring systems
• Security Industry applications:
    - Long range access control transponder
    - Parking lot entry transponder
    - Hands-free apartment door access
    - Asset control and management