آر اف (فرکانس رادیویی) و بی‌سیم تضعیف‌کننده‌

Product Attributes

Introduction

The F1975 Digital Step Attenuator (DSA) is a product in the Glitch-FreeTM DSA Family, which is optimized for the demanding requirements of CATV and satellite systems. It operates in the frequency range of 5MHz to 3000MHz. This device is offered in a compact 4mm × 4mm, 20-pin Thin QFN package with a 75Ω impedance for ease of integration.

Features

• Frequency: 5MHz to 3000MHz
• Serial and 6-bit parallel interface
• 31.5dB control range
• 0.5dB step
• Glitch-FreeTM technology, low transient overshoot
• 3.0V to 5.25V supply
• 1.8V or 3.3V control logic
• Attenuator step error: 0.1dB at 1GHz
• Low insertion loss: 1.2dB at 1GHz
• Ultra-linear IIP3: +64dBm IIP2: +125dBm typical
• Stable integral non-linearity over temperature
• Low current consumption: 550μA typical
• Bi-directional
• Operating temperature: -40°C to +105°C
• 4mm × 4mm, 20-pin QFN package

Applications

• CATV infrastructure
• CATV set-top boxes
• CATV satellite modems
• Data network equipment
• Fiber networks