CVCO55CW-0140-0250

Overview

The Crystek CVCO55CW-0140-0250 is a voltage-controlled oscillator operating within the 140 to 250 MHz frequency range, with a center frequency of 195 MHz. It utilizes a tuning voltage span from 0.5 V to 10.5 V DC. The device requires a 5 V supply and draws a maximum current of 25 mA. Output power is specified at 3 dBm ±3 dB, while typical second harmonic suppression reaches -14 dBc. Typical phase noise performance is -108 dBc/Hz. The component is housed in a 16-QFN package measuring 12.70 mm x 12.70 mm with a height of 3.81 mm, designed for operation between -40°C and +85°C.

Feature Summary

• Voltage-controlled oscillation across a wide microwave frequency band
• Integrated low-noise output stage with defined harmonic suppression
• Compact surface-mount QFN packaging for space-constrained designs
• Wide operational temperature range suitable for industrial environments

Applications

• Frequency synthesis systems requiring stable local oscillators
• Communication transceivers operating in UHF bands
• Test and measurement instrumentation signal generation
• Software-defined radio front-end modules

Procurement Notes

Verify that the specific suffix matches the required tuning voltage characteristics, as variations exist within the CVCO55 series. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure thermal management aligns with the specified junction temperature limits during high-duty cycle operations. Cross-reference pinout diagrams against PCB layout requirements to prevent interface mismatches.

Selection Notes

Select this model when a fixed center frequency near 195 MHz is required with broad tuning capability. Compare against other CVCO55 variants if different frequency ranges or tuning voltages are needed. Evaluate phase noise requirements against application sensitivity thresholds. Consider the 16-QFN footprint constraints relative to available board real estate and soldering capabilities.

Part Context

This component belongs to the Crystek CVCO55 family of voltage-controlled oscillators. Similar models include CVCO55CL-0490-0540 and CVCO55CCQ-1700-1700, which share the same physical package but differ significantly in frequency coverage and tuning specifications. The series provides standardized interfaces for RF design integration.

Replacement Considerations

Direct substitutes require matching the 140-250 MHz range and 16-QFN form factor. Verify equivalent tuning voltage windows and supply current limits. Check for identical phase noise profiles to maintain system signal integrity. Consult manufacturer cross-reference guides for approved alternative part numbers.