QPC4270SR

RF Switches Overview

The QPC4270SR is a single-pole single-throw (SPST) high-isolation absorptive RF switch manufactured by Qorvo. Designed for CATV, set-top boxes, and high-performance communication systems, it operates within a frequency range of 1 MHz to 3.3 GHz. The device features low insertion loss of 0.79 dB and typical off-isolation of 48 dB. It utilizes Insulator on Silicon (SOI) technology for excellent linearity and power handling. The component supports a single power supply with a CMOS/TTL compatible control line and includes a 75 Ohm impedance characteristic.

RF Switches Feature Summary

• High isolation absorptive architecture ensures signal integrity across the operational bandwidth.
• Insulator on Silicon (SOI) process provides superior linearity and robust power handling capabilities.
• Integrated design eliminates the need for blocking capacitors when no DC is present on RF ports.

RF Switches Applications

• CATV distribution systems
• Set-top box signal routing
• High-performance communication infrastructure

RF Switches Procurement Notes

Verify the specific suffix SR against official Qorvo documentation to confirm package type and tape/reel specifications. Ensure compatibility with 75 Ohm system impedance requirements. Cross-reference the datasheet for thermal performance limits and control voltage thresholds before integration into final designs.

RF Switches Selection Notes

Select this component for applications requiring high isolation in 75 Ohm environments up to 3.3 GHz. The SOI technology offers advantages in linearity compared to standard silicon switches. Consider the DFN-6 package constraints for PCB layout and thermal management during the design phase.

RF Switches Part Context

The QPC4270 series belongs to Qorvo's portfolio of RF control components designed for cable television and broadband networks. These switches are engineered to meet the stringent performance demands of modern DOCSIS and hybrid fiber-coaxial systems, providing reliable signal switching with minimal distortion.

RF Switches Replacement Considerations

QPC4270TR7 is a verified substitute part number within the same family, sharing identical electrical specifications and functionality while differing primarily in packaging configuration.