CVCO55BE-0400-0800

Overview

The CVCO55BE-0400-0800 is a Voltage Controlled Oscillator from the Crystek CVCO55 series, operating within a frequency range of 400MHz to 800MHz. It utilizes a 16-QFN package with dimensions of 0.500" L x 0.500" W and a height of 0.150". The device requires a 5V supply voltage and draws a maximum current of 25mA. It features a tuning voltage range of 0.3V to 4.7V DC. Typical phase noise is -108 dBc/Hz, with a pusher value of 0.5 MHz/V. The output power is specified at 3±3 dBm, and secondary harmonics are typically -12 dBc. It operates reliably between -40°C and 85°C.

Feature Summary

• Provides wideband voltage-controlled oscillation across the 400MHz to 800MHz spectrum
• Utilizes a compact surface-mount QFN package for efficient PCB integration
• Delivers stable RF output with controlled phase noise characteristics

Applications

• RF signal generation in communication systems
• Local oscillator sources in receiver architectures
• Test and measurement equipment requiring tunable frequencies

Procurement Notes

Verify that the specific part number matches the required frequency range and package type. Confirm compatibility with the 5V supply requirement and check thermal management needs for the QFN footprint. Ensure the supplier provides official datasheets to validate electrical parameters against design specifications before finalizing procurement.

Selection Notes

Select this component when a broad tuning range from 400MHz to 800MHz is necessary within a single VCO unit. Consider the 16-QFN form factor for space-constrained designs. Evaluate the 25mA current draw against system power budgets. Compare phase noise and harmonic performance against alternative models if stricter spectral purity is required for the specific application environment.

Part Context

This model belongs to the CVCO55 series by Crystek Corporation, designed for versatile RF applications. The series offers various frequency ranges and package options. The BE suffix typically denotes specific performance or packaging variations within the lineup. This particular variant focuses on the lower UHF band, providing a balance of bandwidth and size for general-purpose oscillator needs.

Replacement Considerations

Direct substitutes may include other Crystek CVCO55 variants with overlapping frequency ranges, such as CVCO55CL-0490-0540, though pinouts and electrical specs must be verified. Cross-referencing with similar SMD VCOs from other manufacturers requires careful comparison of tuning voltage, supply current, and phase noise metrics to ensure functional equivalence.