DBP.1575.W.A.30

Overview

The DBP.1575.W.A.30 is a dielectric band pass filter designed for the 1575 MHz frequency, specifically targeting GPS L1 applications. It features a center frequency of 1.57542 GHz with a bandwidth of 10 MHz and an impedance of 50 Ohms. The component exhibits an insertion loss of 3.5 dB and operates within a temperature range of -55°C to +85°C. Its physical dimensions are 5.8 mm x 5.1 mm x 2.8 mm, utilizing a surface-mount package.

Feature Summary

• Constructed as a single ceramic monoblock for high reliability
• Provides low insertion loss and high attenuation
• Compact surface-mount design suitable for space-constrained PCBs

Applications

• GPS L1 signal filtering
• GNSS receiver front-ends
• Satellite navigation systems

Procurement Notes

Verify the specific datasheet version from Taoglas Limited to confirm current manufacturing status and compliance certifications. Ensure the ordering suffix matches the required packaging format, such as bulk or tape and reel, as availability may vary by distributor. Cross-reference the pinout and mechanical drawings with your PCB layout before finalizing procurement to prevent integration errors.

Selection Notes

Select this component when a narrow 10 MHz bandwidth is required at 1.57542 GHz. The 50 Ohm impedance ensures compatibility with standard RF transmission lines. Consider the 3.5 dB insertion loss impact on system sensitivity. The monolithic ceramic construction offers robustness against environmental stress compared to discrete LC filters.

Part Context

This part belongs to Taoglas' DBP series of dielectric resonator filters. These components utilize ceramic materials to achieve sharp roll-off characteristics and stable performance over temperature variations. The series is widely used in wireless communication infrastructure and mobile devices requiring precise frequency selection.

Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation. Evaluate other Taoglas DBP models with similar center frequencies and bandwidths if exact replacement is unavailable. Verify that any alternative maintains the 50 Ohm impedance and compatible footprint dimensions.