QPA3245

RF Amplifiers Overview

The QPA3245 is a hybrid RF power amplifier and doubler designed for cable television (CATV) applications. It operates within a frequency range of 45 MHz to 1.218 GHz, with testing typically conducted at 1.218 GHz. The device requires a supply voltage between 24 V and 34 V and draws approximately 530 mA of current. Key electrical specifications include a gain of 25 dB, a noise figure of 3 dB, and an input return loss of 15 dB. It utilizes GaAs and GaN technology and is housed in an SOT-115J package suitable for through-hole mounting.

RF Amplifiers Feature Summary

• Hybrid construction combining GaAs and GaN technologies for high performance
• Integrated power doubling capability for efficient signal amplification
• Adjustable bias configuration for optimized operational flexibility

RF Amplifiers Applications

• 1.218 GHz CATV nodes
• Cable television amplifiers
• DOCSIS 3.1 network infrastructure components

RF Amplifiers Procurement Notes

Verify component authenticity through authorized channels due to limited availability status. Confirm specific manufacturing lot dates and RoHS compliance details prior to integration. Ensure handling procedures match the requirements for sensitive hybrid RF modules. Cross-reference datasheet revisions to guarantee compatibility with existing system designs and regulatory standards.

RF Amplifiers Selection Notes

Select this component for systems requiring high output power and excellent modulation error ratio (MER) within the specified frequency band. Consider the SOT-115J package constraints for thermal management and mechanical mounting. Evaluate the 24 V to 34 V supply requirement against available power rails. Compare gain and noise figure specifications against alternative single-chip solutions if space or cost constraints differ.

RF Amplifiers Part Context

Part of the Qorvo QPA series, which focuses on hybrid RF amplifiers for broadband communication networks. This series supports the transition from traditional analog to digital cable infrastructures. The QPA3245 specifically addresses the needs of high-frequency node amplification where linearity and power efficiency are critical for maintaining signal integrity across multiple channels.

RF Amplifiers Replacement Considerations

QPA3250 serves as a related variant within the same product family, offering similar hybrid architecture but with distinct electrical characteristics such as a 23 dB gain rating compared to the 25 dB gain of the QPA3245. Verify pinout compatibility and thermal requirements when substituting.