MAX7042
Info: : PRODUCTION
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MAX7042

308MHz/315MHz/418MHz/433.92MHz Low-Power, FSK Superheterodyne Receiver

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price
price unavailable
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 (< 250µs)
  • Small 32-Pin TQFN 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
Additional Details
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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 low-noise amplifier (LNA), an image-rejection (IR) mixer, a fully integrated phase-locked loop (PLL), local oscillator (LO), 10.7MHz IF limiting amplifier with received-signal-strength 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 TQFN and is specified over the automotive -40°C to +125°C temperature range.

Applications

  • Home and Office Lighting Control
  • Home Automation
  • Local Telemetry Systems
  • Remote Keyless Entry (RKE)
  • Remote Sensing
  • Security Systems
  • Smoke Alarms
  • Tire-Pressure Monitoring (TPM)
Part Models 2
1ku List Price
price unavailable

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX7042ATJ+
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  • HTML
MAX7042ATJ+T
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX7042EVKIT

Evaluation Kit for the MAX7042

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MAX7042EVKIT

Evaluation Kit for the MAX7042

Evaluation Kit for the MAX7042

Features and Benefits

  • Proven PCB Layout
  • Proven Components Parts List
  • Multiple Test Points Provided On Board
  • Available in 315MHz or 433.92MHz Optimized Versions
  • 308MHz and 418MHz Operation Possible by Changing Components
  • Fully Assembled and Tested
  • Can Operate as a Stand-Alone Receiver with the Addition of an Antenna

Product Detail

The MAX7042 evaluation kit (EV kit) allows for a detailed evaluation of the MAX7042 superheterodyne receiver. It enables testing of the device's RF performance and requires no additional support circuitry. The RF input circuit is designed to work with a 50Ω source impedance RF signal generator and has an SMA connector for convenient connection to test equipment. The EV kit can also directly interface to the user's embedded design for easy data decoding.

The MAX7042 EV kit comes in two versions, a 315MHz version and a 433.92MHz version. The passive components are optimized for these frequencies. These components can be changed to work at 308MHz and 418MHz. In addition, the 4kbps Manchester received data rate can be adjusted from 0kbps to 33kbps by changing two more components.

For easy implementation into the customer's design, the MAX7042 EV kit also features a proven PCB layout that can be duplicated easily for quicker time to market. The EV kit Gerber files are available upon request.

Applications

  • Home and Office Lighting Control
  • Home Automation
  • Local Telemetry Systems
  • Remote Keyless Entry (RKE)
  • Remote Sensing
  • Security Systems
  • Smoke Alarms
  • Tire-Pressure Monitoring (TPM)

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