آر اف (فرکانس رادیویی) و بی‌سیم تقویت‌کننده‌ آر اف

Product Attributes

Introduction

The F1240 is a dual channel IF variable gain amplifier for diversity basestation receivers. Each channel has 31.5dB of total attenuation and a 0.5dB attenuation step. The device offers significantly better noise and distortion performance than currently available devices. It is packaged in a compact 5mm x 5mm QFN with 200Ω differential input and output impedances for ease of integration into the receiver lineup.

Features

• Ideal for systems with high SNR requirements
• 20dB typical Maximum Gain
• 31.5dB gain control range
• 6 bit control via serial or parallel control
• 0.5dB Gain Steps
• Excellent Noise Figure : 4.0dB
• NF degrades just 1.3dB @ 10dB below Max Gain
• 200Ω Differential Matched Input
• 200Ω Differential Matched Output
• No termination resistors required
• 10MHz – 500MHz frequency range
• Ultra-Linear: OIP3 +47dBm typical
• Excellent 2nd Harmonic Rejection
• External current setting resistors
• Very fast settling < 15ns
• Individual Power Down Modes
• Extremely Low Power: 80mA / Chan
• 5x5 32-QFN package

Applications

• Base Station 2G, 3G, 4G, TDD radio cards
• Repeaters and E911 systems
• Digital Pre-Distortion
• Point to Point Infrastructure
• Public Safety Infrastructure