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Part Number: MAX7042
Description: The MAX7042 fully integrated, low-power, CMOS superheterodyne RF receiver is designed to receive frequ...
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MAX7042
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General Description
MAX7042 General Description
The MAX7042 fully integrated, low-power, CMOS superheterodyne RF receiver is designed to receive frequency-shift-keyed (FSK) data at rates up to 66kbps nonreturn-to-zero (NRZ) (33kbps Manchester). The MAX7042 requires only a few external components to realize a complete wireless RF receiver at 308, 315, 418, and 433.92MHz.
The MAX7042 includes all the active components required in a superheterodyne receiver including a lownoise amplifier (LNA), an image-rejection (IR) mixer, a fully integrated phase-locked loop (PLL), local oscillator (LO), 10.7MHz IF limiting amplifier with received-signalstrength indicator (RSSI), low-noise FM demodulator, and a 3V regulator. Differential peak detecting data demodulators are included for baseband data recovery.
The MAX7042 is available in a 32-pin thin QFN and is specified over the automotive -40°C to +125°C temperature range.
MAX7042 Maximum Ratings
HVIN to AGND or DGND.........................................-0.3V to +6.0V
AVDD, DVDD to AGND or DGND..............................-0.3V to +4.0V
FSEL1, FSEL2, LNASEL,
EN, DATA...................................(DGND - 0.3V) to (HVIN + 0.3V)
All Other Pins...............................(AGND - 0.3V) to (AVDD + 0.3V)
Continuous Power Dissipation (TA = +70°C)
32-Pin Thin QFN (derate 34.5mW/°C above +70°C)....2759mW
Operating Temperature Range ........................-40°C to +125°C
Storage Temperature Range ............................-65°C to +150°C
Maximum RF Input Power ...................................................+0dBm
Lead Temperature (soldering, 10s) ..................................+300°C
AVDD, DVDD to AGND or DGND..............................-0.3V to +4.0V
FSEL1, FSEL2, LNASEL,
EN, DATA...................................(DGND - 0.3V) to (HVIN + 0.3V)
All Other Pins...............................(AGND - 0.3V) to (AVDD + 0.3V)
Continuous Power Dissipation (TA = +70°C)
32-Pin Thin QFN (derate 34.5mW/°C above +70°C)....2759mW
Operating Temperature Range ........................-40°C to +125°C
Storage Temperature Range ............................-65°C to +150°C
Maximum RF Input Power ...................................................+0dBm
Lead Temperature (soldering, 10s) ..................................+300°C
MAX7042 Features
` +2.4V to +3.6V or +4.5V to +5.5V Single-Supply Operation
` Four User-Selectable Carrier Frequencies 308, 315, 418, and 433.92MHz
` -110dBm RF Input Sensitivity at 315MHz
` -109dBm RF Input Sensitivity at 433.92MHz
` Fast Startup (<250s)
` Small 32-Pin Thin QFN Package
` Low Operating Supply Current
6.2mA Continuous
20nA Power-Down
` Integrated PLL, VCO, and Loop Filter
` 45dB Integrated Image Rejection
` Selectable IF BW with External Filter
` Positive and Negative Peak Detectors
` RSSI Output
` Four User-Selectable Carrier Frequencies 308, 315, 418, and 433.92MHz
` -110dBm RF Input Sensitivity at 315MHz
` -109dBm RF Input Sensitivity at 433.92MHz
` Fast Startup (<250s)
` Small 32-Pin Thin QFN Package
` Low Operating Supply Current
6.2mA Continuous
20nA Power-Down
` Integrated PLL, VCO, and Loop Filter
` 45dB Integrated Image Rejection
` Selectable IF BW with External Filter
` Positive and Negative Peak Detectors
` RSSI Output
MAX7042 Typical Application
·Remote Keyless Entry
·Tire-Pressure Monitoring
·Home and Office Lighting Control
·Remote Sensing
·Smoke Alarms
·Home Automation
·Local Telemetry Systems
·Security Systems
·Tire-Pressure Monitoring
·Home and Office Lighting Control
·Remote Sensing
·Smoke Alarms
·Home Automation
·Local Telemetry Systems
·Security Systems
MAX7042 Connection Diagram
MAX7042
PDF/DataSheet Download
- Datasheet: MAX7042
- File Size: 230782 KB
- Manufacturer: MAXIM [Maxim Integrated Products]
- Click here to Download
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