آر اف (فرکانس رادیویی) و بی‌سیم میکسر آر اف

Product Attributes

Introduction

The MAX2680/MAX2681/MAX2682 miniature, low-cost, low-noise downconverter mixers are designed for low­ voltage operation and are ideal for use in portable com­ munications equipment. Signals at the RF input port are mixed with signals at the local oscillator (LO) port using a double-balanced mixer. These downconverter mixers operate with RF input frequencies between 400MHz and 2500MHz, and downconvert to IF output frequencies between 10MHz and 500MHz. The MAX2680/MAX2681/MAX2682 operate from a single +2.7V to +5.5V supply, allowing them to be powered directly from a 3-cell NiCd or a 1-cell Lithium battery. These devices offer a wide range of supply currents and input intercept (IIP3) levels to optimize system perfor­ mance. Additionally, each device features a low-power shutdown mode in which it typically draws less than 0.1μA of supply current. The MAX2680/MAX2681/MAX2682 are manufactured on a high-frequency, low-noise, advanced silicon-germanium process and are offered in the space-saving 6-pin SOT23 package.

Features

• 400MHz to 2.5GHz Operation
• +2.7V to +5.5V Single-Supply Operation
• Low Noise Figure: 6.3dB at 900MHz (MAX2680)
• High Input Third-Order Intercept Point (IIP3 at 2450MHz)
• -6.90dBm at 5.0mA (MAX2680)
• +1.00dBm at 8.7mA (MAX2681)
• +3.2dBm at 15.0mA (MAX2682)
• <0.1μA Low-Power Shutdown Mode
• Ultra-Small Surface-Mount Packaging

Applications

• 400MHz/900MHz/2.4GHz ISM-Band Radios
• Personal Communications Systems (PCS)
• Cellular and Cordless Phones
• Wireless Local Loop IEEE-802.11 and Wireless Data