Product Overview

The SKY13330-397LF is a CMOS Silicon-On-Insulator (SOI) Single-Pole, Double-Throw (SPDT) RF switch designed for 0.1 to 6.0 GHz wideband applications. With high linearity (IP1dB +39 dBm) and low insertion loss (0.35 dB@2.2 GHz), it is ideal for WCDMA handsets, data cards, and multimode communication systems. Housed in a 2x2 mm QFN-12 package, it supports wide voltage ranges (2.3-4.8 V) and eliminates the need for external DC blocking capacitors, simplifying RF front-end design.

Key Features

• Ultra-Wide Frequency Range：
  Supports 0.1 to 6.0 GHz full-band switching, covering WCDMA, WLAN (a/b/g/n), and other multi-standard communications for cross-band RF systems.
• Superior RF Performance：
  • Ultra-low insertion loss of 0.35 dB (2.2 GHz) minimizes signal degradation;
  • IP1dB of +39 dBm ensures linearity in high-power input scenarios.
• Simplified Peripheral Design：
  Integrated negative voltage generator and decoder eliminate the need for external DC blocking capacitors, reducing component count and PCB layout complexity.
• Wide Voltage & Low Power：
  • Operates on 2.3-4.8 V supply voltage for versatile power compatibility;
  • Shutdown mode current as low as 7 µA suits battery-powered devices.
• Compact & Reliable Package：
  2x2 mm QFN-12 package (MSL1 level) supports reflow soldering, RoHS-compliant, and ideal for high-density integration.

Technical Specifications

Typical Applications

• WCDMA Communication Systems：
  Enables band and mode switching in 3G/4G handsets and data cards, supporting high-speed data and voice communication with efficient RF path management.
• Multimode Antenna Systems：
  Used for multi-band antenna switching in smart devices, compatible with 2G/3G/4G/Wi-Fi to enhance antenna utilization and system flexibility.
• Wireless Local Area Networks (WLAN)：
  Implements signal path switching in routers and access points, supporting 2.4 GHz/5 GHz dual-band switching to optimize wireless signal transmission.
• Test & Measurement Equipment：
  Serves as an RF signal routing switch in test instruments, supporting wideband signal switching for spectrum analyzers and signal generators.
• Internet of Things (IoT) Terminals：
  Manages low-power RF paths in smart sensors and gateways, extending battery life and adapting to complex industrial IoT environments.

Why Choose SKY13330-397LF?

• Superior RF Performance：
  Lower insertion loss and higher IP1dB than competitors (e.g., RFMD RFSP2406), ideal for high-power and high-sensitivity applications.
• Design Simplification：
  No external DC blocking capacitors required, reducing BOM cost and layout complexity for faster time-to-market.
• Wide Temperature Reliability：
  Operates from -40°C to +85°C with ESD protection, ensuring long-term stability in industrial and consumer devices.
• Flexible Voltage Compatibility：
  Supports 2.3-4.8 V supply and 1.65-2.70 V control voltage, compatible with various MCUs and power schemes.
• Global Technical Support：
  Provides an official evaluation board (SKY13330-397LF-EVB) and application guides to assist rapid prototyping and testing.

SUNTOP COMPANY INTRODUCTION

Founded in 2000, Suntop is one of the leading global distributors of electronic
components, dedica ted to providing comprehensive procurement and supply chain services to the global electronics manufacturing industry. Our services include distribution, spot trading, PPV cost-saving projects, and inventory management. We not only offer high-quality products but also strive to assist our clients in achieving optimal solutions with minimal time and cost.
As a trusted partner for numerous OEMs, ODMs, CEMs, and EMS companies worldwide, our professional team manages millions of component records from thousands of trading partners across dozens of countries daily through our company database. We maintain close business relationships with major factories and distributors in North America, Europe, and Asia to ensure that our clients stay ahead in a highly competitive market.