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MAX2620
10MHz to 1050MHz Integrated RF Oscillator with Buffered Outputs


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Description
FULL DATA SHEET (PDF, 248kB)
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The MAX2620 combines a low-noise oscillator with two output buffers in a low-cost, plastic surface-mount, ultra-small µMAX® package. This device integrates functions typically achieved with discrete components. The oscillator exhibits low-phase noise when properly mated with an external varactor-tuned resonant tank circuit. Two buffered outputs are provided for driving mixers or prescalers. The buffers provide load isolation to the oscillator and prevent frequency pulling due to load-impedance changes. Power consumption is typically just 27mW in operating mode (VCC = 3.0V), and drops to less than 0.3µW in standby mode. The MAX2620 operates from a single +2.7V to +5.25V supply.

Key Features   Applications/Uses
  • Low-Phase-Noise Oscillator: -110dBc/Hz (25kHz offset from carrier) Attainable
  • Operates from Single +2.7V to +5.25V Supply
  • Low-Cost Silicon Bipolar Design
  • Two Output Buffers Provide Load Isolation
  • Insensitive to Supply Variations
  • Low, 27mW Power Consumption (VCC = 3.0V)
  • Low-Current Shutdown Mode: 0.1µA (typ)

 
  • 900MHz Cordless Phones
  • 900MHz ISM-Band Applications
  • Analog Cellular Phones
  • Digital Cellular Phones
  • Land Mobile Radios
  • Narrow-Band PCS (NPCS)

    Key Specifications:   VCOs
    Part Number LO Driver Outputs PLL Driver Outputs RF Frequency (MHz) min. RF Frequency (MHz) max. POUT (dBm) min. POUT (dBm) max. VCC (V) Supply Current (mA) Footprint (mm x mm) Package Smallest Available Package (max w/pins) (mm2) Price**
    MAX2620  Yes Yes 10 1050 -16 -2 2.5 to 5.25 9 3.0 x 4.9 µMAX/8 16 $1.98 @ 1k
    See All VCOs (14)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Diagram
    MAX2620: Typical Operating Circuit
    Typical Operating Circuit

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    Document Ref.: 19-1248; Rev 2; 2002-08-30
    This page last modified: 2007-06-01


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