آر اف (فرکانس رادیویی) و بی‌سیم فرانت‌اند آر‌اف (ال‌ان‌ای و پی‌ای)

Product Attributes

Introduction

The SKY85747-11 is a highly integrated, 5 GHz front-end module (FEM) incorporating a transmit/receive (T/R) switch, a high-gain low-noise amplifier (LNA) with bypass, and a power amplifier (PA) intended for high-power 802.11ax applications and systems. The LNA and PA disable functions ensure low leakage current in the off mode. An integrated logarithmic power detector is included to provide closed-loop power control over 20 dB of dynamic range. The device is provided in a compact, 24-pin 3 x 5 mm Land Grid Array (LGA) package, which may reduce the front-end board space by more than 50 percent.

The SKY85747-11 comprises a high-power 5 GHz PA, a 5 GHz LNA, and a low-loss broadband switch to provide the T/R switching function. The device is fully matched, and requires few external components for optimal performance, which makes it ideal for small portable or high stream-count applications. The FEM provides over +32 dB of transmit gain over the frequency band. The LNA supports active and bypass modes, which can operate in the presence of jammers by offering +10 dBm input third order intercept (IIP3).

Features

• Integrated high-performance 5 GHz PA, LNA with bypass, and T/R switch
• Fully matched input and output
• Integrated logarithmic power detector and directional coupler
• Transmit gain: 34.5 dB
• Receive gain: 16 dB
• Supports 802.11ax output power: +18.5 dBm, -43 dB DEVM, MCS11
• Integrated, temperature-compensated log detector
• Highly sensitive, jammer-tolerant LNA
• Small LGA (24-pin, 3×5 mm) package (MSL4, 260 °C per JEDEC J-STD-020)

Applications

• 802.11ax networking systems
• WLAN-enabled wireless video streaming systems