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
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