آر اف (فرکانس رادیویی) و بی‌سیم سایر آی سی‌ و ماژول‌های آر اف

Product Attributes

Introduction

The MAX2055 high-performance, digitally controlled, variable-gain, differential analog-to-digital converter (ADC) driver/amplifier (DVGA) is designed for use from 30MHz to 300MHz in base station receivers. The device integrates a digitally controlled attenuator and a high-linearity single-ended-to-differential output amplifier, which can either eliminate an external transformer, or can improve the even-order distortion performance of a transformer-coupled circuit, thus relaxing the requirements of the anti-alias filter preceding an ADC. Targeted for ADC driver applications to adjust gain either dynamically or as a one-time channel gain setting, the MAX2055 is ideal for applications requiring high performance. The attenuator provides 23dB of attenuation range with ±0.2dB accuracy. The MAX2055 is available in a thermally enhanced 20-pin TSSOP-EP package and operates over the -40°C to +85°C temperature range.

Features

• 30MHz to 300MHz Frequency Range
• Single-Ended-to-Differential Conversion
• -3dB to +20dB Variable Gain
• 40dBm Output IP3 (at All Gain States and 70MHz)
• 2nd Harmonic -76dBc
• 3rd Harmonic -69dBc
• Noise Figure: 5.8dB at Maximum Gain
• Digitally Controlled Gain with 1dB Resolution and ±0.2dB Accuracy
• Adjustable Bias Current

Applications

• Cellular Base Stations
• PHS/PAS Infrastructure Receiver Gain Control
• Broadband Systems
• Automatic Test Equipment
• Terrestrial Links
• High-Performance ADC Drivers