THREE-CHANNEL ANALOG FRONT-END DEVICE

The MCP2030A is a stand-alone Analog Front-End (AFE) device for Low-Frequency (LF) sensing and bidirectional communication applications. The device 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 ~1 mVPP and can demodulate an amplitude-modulated input signal with as low as 8% modulation depth. The device can also transmit back the data using the same LF (LF-Talk back) carrier frequency. The MCP2030A can be used for various LF communications such as Passive Keyless Entry, Bodycom, and long range access control applications. Three input pins for analog input signalsHigh input detection sensitivity (1 mVPP, typical)High modulation depth sensitivity (as low as 8%)Three output selections: - Demodulated data - Carrier clock - RSSIInput carrier frequency: 125 kHz, typicalInput data rate: 10 Kbps, maximumEight internal configuration registersBidirectional transponder communication (LF talk back)Programmable antenna tuning capacitance (up to 63 pF, 1 pF/step)Programmable output-enable filterLow standby current: 6.5 µA (with three channels enabled), typicalLow operating current: 19 µA (with three channels enabled), typicalSerial Peripheral Interface (SPI) with external devicesSupports Battery Backup mode and batteryless operation with external circuitsIndustrial and Extended Temperature Range: -40°C to +85°C