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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 ¦ÌA (with 3 channels enabled), typical

? Low operating current: 13 ¦ÌA (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¡ãC to +85¡ãC (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