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MAX7058
315MHz/390MHz Dual-Frequency ASK Transmitter

Transmit 315MHz/390MHz with One Crystal While Keeping Your Antenna Matched


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 220kB)
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Description
The MAX7058 UHF transmitter alternatively transmits ASK/OOK data at 315MHz or 390MHz using a single crystal. The MAX7058 has internal tuning capacitors at the output of the power amplifier that can be programmed for matching to the antenna or load. The MAX7058 can transmit at a data rate up to 100kbps NRZ (50kbps Manchester coded). Typical transmitted power into a 50Ω load is +10dBm. The MAX7058 operates from +2.1V to +3.6V and draws under 8.0mA of current. The standby current is less than 1µA at room temperature. A 15MHz crystal is used as the reference for 315MHz and 390MHz operation by selecting synthesizer-divide ratios of 21 and 26, respectively.

The MAX7058 is available in a 4mm × 4mm, 24-pin thin QFN package and is specified to operate in the –40°C to +125°C automotive temperature range.

Key Features   Applications/Uses
  • Switched 315MHz/390MHz Carrier Frequency Using One Crystal
  • +2.1V to +3.6V Single-Supply Operation
  • ASK/OOK Modulation
  • Internal Switched Capacitors for Optimum Dual-Frequency Operation
  • 8.0mA DC Current Drain (50% Duty Cycle OOK)
  • 0.8µA Standby Current
  • Small 4mm x 4mm, 24-Pin Thin QFN Package

 
  • Automotive
  • Garage Door Openers
  • Home Automation
  • RF Remote Controls
  • Security Systems
  • Wireless Sensors

    Key Specifications:  ISM RF Transmitters
    Part Number Applications Band/ Freq.
    (MHz)
    Features Footprint
    (mm x mm)
    Smallest Available Pckg.
    (mm2)
    Package/Pins Price
    max w/pins See Notes
    MAX7058 
    Automotive
    Garage Door Openers
    Home Automation
    RF Remote Controls
    Security Systems
    300 to 450
    +2.1V to +3.6V Single-Supply Operation
    ASK/OOK Modulation
    Switched 315MHz/390MHz Carrier Frequency Using One Crystal
    4.0 x 4.0 16.8
    TQFN/24
    $1.32 @1k
    See All ISM RF Transmitters (10)

    Diagram
    MAX7058: Functional Block Diagram
    Functional Block Diagram

    Design Guides
  • Wireless (PDF)

    Reliability Reports
  • Reliability Report: MAX7058.pdf
  • Show FIT data for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-2 of 2

    MAX7058 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX7058ATG+T    
    Active TQFN;24 pin;16.8 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0021 (PDF)
    Use pkgcode/variation: T2444+3*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7058ATG+  
    Active TQFN;24 pin;16.8 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0021 (PDF)
    Use pkgcode/variation: T2444+3*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  • New Product Press Release 2008-05-29 
  • Product Family Ad: Download

    Related Products
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    MAX1473 315MHz/433MHz ASK Superheterodyne Receiver with Extended Dynamic Range
    MAX1472 300MHz-to-450MHz Low-Power, Crystal-Based ASK Transmitter
    MAX7044 300MHz to 450MHz High-Efficiency, Crystal-Based +13dBm ASK Transmitter
    MAX1479 300MHz to 450MHz Low-Power, Crystal-Based +10dBm ASK/FSK Transmitter
    MAX7058 315MHz/390MHz Dual-Frequency ASK Transmitter

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    Document Ref.: 19-3206; Rev 0; 2008-02-19
    This page last modified: 2009-11-09


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