Overview
Features and Benefits
- +2.1V to +3.6V or +4.5V to +5.5V Single-Supply Operation
- Single-Crystal Transceiver
- Factory-Preset Frequency (No Serial Interface Required)
- ASK/OOK Modulation
- +10dBm Output Power into 50Ω Load
- Integrated TX/RX Switch
- Integrated Transmit and Receive PLL, VCO, and Loop Filter
- > 45dB Image Rejection
- Typical RF Sensitivity*: -114dBm
- Selectable IF Bandwidth with External Filter
- < 12.5mA Transmit-Mode Current
- < 6.7mA Receive-Mode Current
- < 800nA Shutdown Current
- Fast-On Startup Feature, < 250µs
- Small, 32-Pin, Thin QFN Package
Product Details
The MAX7030 crystal-based, fractional-N transceiver is designed to transmit and receive ASK/OOK data at factory-preset carrier frequencies of 315MHz or 433.92MHz with data rates up to 33kbps (Manchester encoded) or 66kbps (NRZ encoded). This device generates a typical output power of +10dBm into a 50Ω load and exhibits typical sensitivity of -114dBm. The MAX7030 features separate transmit and receive pins (PAOUT and LNAIN) and provides an internal RF switch that can be used to connect the transmit and receive pins to a common antenna.
The MAX7030 transmit frequency is generated by a 16-bit, fractional-N, phase-locked loop (PLL), while the receiver's local oscillator (LO) is generated by an integer-N PLL. This hybrid architecture eliminates the need for separate transmit and receive crystal reference oscillators because the fractional-N PLL is preset to be 10.7MHz above the receive LO. Retaining the fixed-N PLL for the receiver avoids the higher current-drain requirements of a fractional-N PLL and keeps the receiver current drain as low as possible. All frequency generation components are integrated on-chip, and only a crystal, a 10.7MHz IF filter, and a few discrete components are required to implement a complete antenna/digital data solution.
The MAX7030 is available in a small, 5mm × 5mm, 32-pin thin QFN package, and is specified to operate over the automotive -40°C to +125°C temperature range.
Applications
- 2-Way Remote Keyless Entry
- Garage Door Openers
- Home Automation
- Local Telemetry Systems
- Remote Controls
- Remote Sensing
- Security Systems
- Smoke Alarms
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (2)
Documentation & Resources
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How to Optimize an ISM Radio Frequency (RF) System10/1/2012
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Design a Crystal Oscillator to Match Your Application9/18/2012
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Crystal Calculations for ISM-RF Products6/29/2012
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Squelch in ISM-RF Receivers6/25/2012
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Baseband Calculations for ISM-RF Receivers6/20/2012
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RF Basics Guide4/12/2012
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Radio Link-Budget Calculations for ISM-RF Products11/2/2011
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PCBs Layout Guidelines for RF & Mixed-Signal9/14/2011
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Avoid PC-Layout \"Gotchas\" in ISM-RF Products4/12/2011
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Important Design Considerations for Heart-Rate and Fitness Monitors5/10/2010
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Introduction to Hearing Aids and Important Design Considerations5/10/2010
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Radiated Power and Field Strength from UHF ISM Transmitters3/1/2007
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Data Slicing Techniques for UHF ASK Receivers12/22/2005
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Power Amplifier Theory for High-Efficiency Low-Cost ISM-Band Transmitters9/8/2005
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Requirements of Remote Keyless Entry (RKE) Systems2/16/2005
Tools & Simulations
Design Tools
XLS
ISM-RF Baseband Calculator
202.5 K
ISM-RF Crystal Calculator workbook is a tool for properly selecting and configuring the reference oscillator for various industrial/scientific/medical radios.
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Support & Discussions
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Lead Times
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