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

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 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)

MAX2620: Typical Operating Circuit Applications/Uses 900MHz Cordless Phones 900MHz ISM-Band Applications Analog Cellular Phones Digital Cellular Phones Land Mobile Radios Narrow-Band PCS (NPCS)

DataSheet

Parametrics

Design kits & evaluation modules

• MAX2620EVKIT

Quality and Environmental Data

• MAX2620.pdf

Ordering Information