DSTEMP-I/SL Datasheet - Microchip Technology

Description
   The MCP2030A 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. These registers, with the exception of the read-only Status register, are readable and programmable by an external device.

Device Features
• 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 (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