آر اف (فرکانس رادیویی) و بی‌سیم میکسر آر اف

Product Attributes

Introduction

The LT5521 is a very high linearity mixer optimized for low distortion and low LO leakage applications. The chip includes a high speed LO buffer with single-ended input and a double-balanced active mixer. The LT5521 requires only -5dBm LO input power to achieve excellent distortion and noise performance, while reducing external drive circuit requirements. The LO buffer is internally 50Ω matched for wideband operation. With a 250MHz input, a 1.7GHz LO and a 1.95GHz output frequency, the mixer has a typical IIP3 of +24.2dBm, –0.5dB conversion gain and a 12.5dB noise figure. The LT5521 offers exceptional LO-RF isolation, greatly reducing the need for output filtering to meet LO suppression requirements. The device is designed to work over a supply voltage range from 3.15V to 5.25V.

Features

• Wideband Output Frequency Range to 3.7GHz
• +24.2 dBm IIP3 at 1.95GHz RF Output
• Low LO Leakage: –42dBm
• Integrated LO Buffer: Low LO Drive Level
• Single-Ended LO Drive
• Wide Single Supply Range: 3.15V to 5.25V
• Double-Balanced Active Mixer
• Shutdown Function
• 16-Lead (4mm×4mm) QFN Package

Applications

• Cellular, W-CDMA, PHS and UMTS Infrastructure
• Cable Downlink Infrastructure
• Wireless Infrastructure
• Fixed Wireless Access Equipment
• High Linearity Mixer Applications