MAX7037：Sub-1GHz Ultra-Low-Power RF ISM Transceiver
Ultra-Low-Power, High-Performance Quad Band Transceiver with Integrated Microcontroller
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.
Key Features- 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
| Applications/Uses- Automotive remote keyless entry and tire pressure monitor
- Building automation / smart home
- Smart meter
- Ultra-low-power sensor networks
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Parametrics
| Part Number | Solutions | Applications | Frequency Range
(MHz) | ISUPPLY
(mA) | Footprint
(mm x mm) | Package/Pins |
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| MAX7037 | ISM, RKE, SRD; 315-433.92MHz Bands | AMR
Cordless
ISM
Remote Controls
Remote Sensing
Security Systems
Smoke Alarms | 300 to 928 | Rx: 22 | 5.0 x 5.0 | SQFN/40 |
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Design kits & evaluation modules
Ordering Information
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
|---|
| MAX7037EGL+ | Active | | SQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free |
| MAX7037EGL+T | Active | | SQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free |
