The MAX2620 is an RF integrated circuit that combines a low-noise oscillator with two output buffers. It features low-phase noise, low power consumption, and wide supply voltage range.
The MAX2620EUA is a low‑noise RF oscillator that integrates a negative‑resistance oscillator core with two open‑collector output buffers in a compact µMAX package. It operates from a single +2.7 V to +5.25 V supply and offers low‑phase‑noise performance (‑110 dBc/Hz at 25 kHz offset) while consuming only about 27 mW in normal mode.
Typical applications include analog and digital cellular phones, 900 MHz cordless phones, ISM‑band devices, land‑mobile radio, and narrow‑band PCS. The datasheet details absolute maximum ratings, electrical characteristics, pin functions, recommended external resonant tank circuits, and design guidelines for achieving optimal output power and isolation. This manual is written in Chinese.
| Frequency Range | 10 MHz – 1050 MHz |
|---|---|
| Supply Voltage | +2.7 V to +5.25 V |
| Typical Power Consumption | 27 mW (VCC = 3.0 V) |
| Phase Noise | -110 dBc/Hz at 25 kHz offset |
| Package | µMAX (8‑lead) |
It operates from a single +2.7 V to +5.25 V supply.
Typical power consumption is 27 mW when VCC is 3.0 V.
The oscillator achieves –110 dBc/Hz at a 25 kHz offset from the carrier.