Microchip Technology MCP2030A Three-Channel Analog Front-End
Microchip MCP2030A Three-Channel Analog Front-End is a stand-alone Analog Front-End (AFE) device for Low-Frequency (LF) sensing and bidirectional communication applications. There are eight internal configuration registers in the MCP2030 which are readable and programmable, except the read-only STATUS register, by an external device. The MCP2030A has three low-frequency input channels. Each input channel can be individually enabled or disabled. The device can detect an input signal with amplitude as low as ~1mVPP and can demodulate an amplitude-modulated input signal with as low as 8% modulation depth. The MCP2030A is optimized for very low current consumption and has various battery-saving low-power modes (Sleep, Standby, Active). The device can also be operated in Battery Back-up and Batteryless modes using a few external components.
Features
- Three input pins for analog input signals
- High input detection sensitivity (3mVPP, typical)
- High modulation depth sensitivity (as low as 8%)
- Three output selections
- Demodulated data
- Carrier clock
- RSSI
- Input carrier frequency: 125kHz, typical
- Input data rate: 10Kbps, maximum
- 8 internal Configuration registers
- Bidirectional transponder communication (LF talk back)
- Programmable antenna tuning capacitance (up to 63pF, 1pF/step)
- Programmable output enable filter
- Low standby current: 4μA (with 3 channels enabled), typical
- Low operating current: 13μA (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)
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
Application Examples
Inilathala: 2012-06-25
| Na-update: 2022-03-11