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