QPQ0978

Overview

The QPQ0978 is a 978 MHz band-pass Bulk Acoustic Wave (BAW) filter designed for Air Traffic Control applications. It features a 1.6 MHz bandwidth and low insertion loss, typically around 3.5 dB to 4.5 dB. The device operates with a center frequency of 978 MHz and is self-matched to 50 ohms. Housed in a 6.43 mm x 4.64 mm chip-scale hermetic package, it provides significant size and weight advantages over traditional ceramic or cavity filters.

Feature Summary

• High-performance BAW technology optimized for narrow-band signal control
• Hermetic chip-scale package offering reduced size and weight
• Self-matched to 50 ohms for simplified integration

Applications

• Air Traffic Control systems
• Secondary Surveillance Radar (SSR)
• Mode S transponder receivers

Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with the manufacturer or authorized distributors before procurement. Ensure that the hermetic package requirements align with your assembly environment capabilities. Confirm that the 978 MHz center frequency matches your system specifications precisely, as this component is specialized for Air Traffic Control bands.

Selection Notes

Select the QPQ0978 when narrow-band filtering at 978 MHz is required for critical air traffic infrastructure. Its BAW construction ensures high selectivity and low insertion loss compared to older technologies. Consider its small footprint if space constraints are present in radar or transponder receiver modules. Validate thermal management needs despite the compact hermetic design.

Part Context

This component belongs to Qorvo's RF filter portfolio, specifically utilizing Bulk Acoustic Wave technology. It addresses the need for miniaturization in aviation electronics while maintaining the performance standards required for safety-critical communication and surveillance systems. It replaces larger, heavier traditional filter solutions in modernized ground-based equipment.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Direct replacement requires verifying electrical compatibility, particularly the 978 MHz center frequency and 1.6 MHz bandwidth, as well as physical package dimensions.