Sub-1GHz Ultra-Low-Power RF ISM Transceiver

The MAX7037 is an ultra-low-power high-performance quad band multichannel transceiver with integrated 8051 microcontroller, flash memory, and sensor interface. The MAX7037 runs from a minimum supply voltage of only 2.1V, extending battery life and also enabling it to cope with different sources of energy like solar cells, electromechanical, or thermo electrical energy. Hardware-implemented transmit-and-receive routines in combination with a microcontroller enable a high-efficiency transceiver system for wireless fail-safe multiband/multichannel communication with advanced FSK and ASK protocol features. Sleep modes allow easy implementation of low-power applications with fast reaction times.

Applications

* Automotive remote keyless entry and tire pressure monitor * Building automation / smart home * Smart meter * Ultra-low-power sensor networks

* Ultra-Low-Power Consumption for Battery-Based Operation

* Current Consumption TX (POUT = +6dBm, FSK): 16mA

* Current Consumption RX (FSK): 22mA

* Current Consumption Deep Sleep Mode (Watchdog Timer and PRAM Active): 100nA

* Supply Voltage Range: 2.1V to 5.5V

* Integrated Ultra-Low-Power On/Off Voltage Threshold Detectors

* Worldwide Usable Frequency Band Coverage

* ISM Band Frequency Coverage: 315/433/868/915~930MHz

* Fractional-N LO Generation For Multichannel Operation

* RF Synthesizer Resolution: 244Hz/488Hz

* FFSK/FMSK/ASK Modulation for Optimum Compatibility with Various Communication Standards

* Gross Data Rates: Up To 125Kbit/s

* ASK with Programmable Transition Shape for Spectral Tuning

* Fully Integrated RF, TX, and RX Front-End for Minimum External Components

* Maximum TX Output Power (RLOAD = 400Ω): +10dBm

* RX Sensitivity (FFSK, BW = 150kHz): -100dBm

* Mixed-Signal Sensor Interface with Analog I/O Through ADC/DAC and On-Chip Buffers (Contact Factory for Future Support)

* Integrated 9-Bit Sigma Delta ADC for Applications

* Integrated 8-Bit DAC

* 8 Mixed-Signal I/Os with Versatile Switching Matrix; Up to 18 Digital I/Os

* Wristwatch Crystal-Based Real-Time Clock (Contact Factory for Future Support)

* Wristwatch Crystal Oscillator Integrated: 32768Hz