MAX2620ESLASHD中文資料美信數(shù)據(jù)手冊PDF規(guī)格書

General 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.

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

Analog Cellular Phones

Digital Cellular Phones

900MHz Cordless Phones

900MHz ISM-Band Applications

Land Mobile Radio

Narrowband PCS (NPCS)