Fixed frequency synthesizer features low phase noise

October 31, 2012 // By Jean-Pierre Joosting
Z-Communications has announced an RoHS compliant fixed frequency synthesizer model SFS4000C-LF for satellite communications and test equipment.

The SFS4000C-LF is a single frequency synthesizer that is phase locked at 4000 MHz while using a 10 MHz reference. This coaxial resonator PLL features low phase noise of -102 dBc/Hz at 10 kHz offset and typical sideband spurs of -65 dBc.

The SFS4000C-LF is designed to deliver a typical output power of 0 dBm into a 50 Ω load while operating off a VCO voltage supply of 5 Vdc and PLL chip voltage of 3.3 Vdc, each drawing 30 mA and 11 mA, respectively. The innovative, low phase noise device is designed to operate over the extended commercial temperature range of -25 to 90ºC.

The SFS4000C-LF features typical 2nd harmonic suppression of -15 dBc and comes in the company's industry standard PLL-V12C package measuring 0.60 x 0.60 x 0.22 inches. It is available in tape and reel packaging for production requirements making it ideal for automated surface mount assembly and reflow.