Analog Devices MAX2620 Product Info

• 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 (V_CC = 3.0V)
• Low-Current Shutdown Mode: 0.1µA (typ)

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 (V_CC = 3.0V), and drops to less than 0.3µW in standby mode. The MAX2620 operates from a single +2.7V to +5.25V supply.

Applications

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