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10MHz to 1050MHz Integrated RF Oscillator with Buffered Outputs

Product Details

Key Features

Applications/Uses

Parametric specs for VCOs
RF Freq. (MHz) (max) 1050
RF Freq. (MHz) (min) 10
LO Driver Outputs Yes
PLL Driver Outputs Yes
POUT (dBm) (min) -16
POUT (dBm) (max) -2
Package/Pins UMAX/8
Budgetary
Price (See Notes)
4.33
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Simplified Block Diagram

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Parameters

Parametric specs for VCOs
RF Freq. (MHz) (max) 1050
RF Freq. (MHz) (min) 10
LO Driver Outputs Yes
PLL Driver Outputs Yes
POUT (dBm) (min) -16
POUT (dBm) (max) -2
Package/Pins UMAX/8
Budgetary
Price (See Notes)
4.33

Key Features

  • 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)

Applications/Uses

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

Description

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.

Simplified Block Diagram

MAX2620: Typical Operating Circuit MAX2620: Typical Operating Circuit Zoom icon

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .