CVCO55CL-1256-1264

Overview

The CVCO55CL-1256-1264 is a voltage-controlled oscillator (VCO) from the Crystek CVCO55 series, designed for microwave applications. It operates within a frequency range of 1256 MHz to 1264 MHz, with a center frequency of 1260 MHz. The device utilizes a 16-QFN package variant measuring 12.70mm x 12.70mm. Key electrical specifications include a typical phase noise of -118 dBc/Hz and a second harmonic level of -17 dBc. It requires a supply voltage of 5V and draws a maximum current of 40mA. The unit supports an operating temperature range from -40°C to 85°C.

Feature Summary

• Provides stable oscillation in the 1256–1264 MHz band with low phase noise characteristics.
• Utilizes a compact 16-QFN surface-mount package for efficient PCB integration.
• Operates reliably across industrial temperature ranges without external tuning components.

Applications

• Microwave communication systems
• Test and measurement equipment
• Signal generation modules

Procurement Notes

Verify the exact part number against official Crystek documentation to ensure compatibility with system requirements. Confirm that the 16-QFN footprint matches your PCB layout design. Check RoHS3 compliance status if environmental regulations apply to your manufacturing process. Ensure supply voltage and current limits align with your power management architecture before procurement.

Selection Notes

Select this component when a fixed frequency range near 1.26 GHz is required with minimal phase noise. Consider the 12.7mm square package size for space-constrained designs. Evaluate the -17 dBc second harmonic performance against system filtering capabilities. Verify that the 5V supply requirement fits within your available power rails.

Part Context

This model belongs to the CVCO55 series of voltage-controlled oscillators manufactured by Crystek Corporation. The series offers various frequency bands tailored for microwave applications. The CVCO55CL-1256-1264 specifically targets the 1.26 GHz region, providing a standardized solution for engineers requiring reliable signal sources in compact form factors.

Replacement Considerations

Consult Crystek's official selector guide for alternative models within the CVCO55 series that match different frequency ranges or package variants. Direct substitutes must maintain identical pinout and thermal characteristics to ensure board-level compatibility without redesign.