آر اف (فرکانس رادیویی) و بی‌سیم میکسر آر اف

Product Attributes

Introduction

The MAX19999 dual-channel downconverter provides 8.3dB of conversion gain, +24 dBm input IP3, +11.4 dBm 1dB input compression point, and a noise figure of 10.5dB for 3000MHz to 4000MHz WiMAX and LTE diversity receiver applications. With an optimized LO frequency range of 2650MHz to 3700MHz, this mixer is ideal for low-side LO injection architectures. In addition to offering excellent linearity and noise performance, the MAX19999 also yields a high level of component integration. This device includes two double-balanced passive mixer cores, two LO buffers, and a pair of differential IF output amplifiers. Integrated onchip baluns allow for single-ended RF and LO inputs. The MAX19999 requires a nominal LO drive of 0dBm and a typical supply current of 388mA at VCC = +5.0V or 279mA at VCC = +3.3V. The MAX19999 is pin compatible with the MAX19997A 1800MHz to 2900MHz mixer and pin similar with the MAX19985/MAX19985A and MAX19995/MAX19995A series of 700MHz to 2200MHz mixers, making this entire family of downconverters ideal for applications where a common PCB layout is used across multiple frequency bands. The MAX19999 is available in a compact 6mm x 6mm, 36-pin thin QFN package with an exposed pad. Electrical performance is guaranteed over the extended temperature range, from TC = -40°C to +85°C.

Features

• 3000MHz to 4000MHz RF Frequency Range
• 2650MHz to 3700MHz LO Frequency Range
• 50MHz to 500MHz IF Frequency Range
• 8.3dB Conversion Gain
• +24dBm Input IP3
• 10.5dB Noise Figure
• +11.4dBm Input 1dB Compression Point
• 74dBc Typical 2 x 2 Spurious Rejection at PRF = -10dBm
• Dual Channels Ideal for Diversity Receiver Applications
• Integrated LO Buffer
• Integrated LO and RF Baluns for Single-Ended Inputs
• Low -3dBm to +3dBm LO Drive
• Pin Compatible with the MAX19997A 1800MHz to 2900MHz Mixer
• Pin Similar to the MAX9995/MAX9995A and MAX19995/MAX19995A 1700MHz to 2200MHz Mixers and the MAX9985/MAX9985A and MAX19985/MAX19985A 700MHz to 1000MHz Mixers
• 39dB Channel-to-Channel Isolation
• Single +5.0V or +3.3V Supply
• External Current-Setting Resistors Provide Option for Operating Device in Reduced-Power/ReducedPerformance Mode

Applications

• 3.5GHz WiMAX and LTE Base Stations
• Fixed Broadband Wireless Access
• Microwave Links
• Wireless Local Loop
• Private Mobile Radios