The ZRO1000A-LF from Z-COMM is a voltage controlled oscillator for a 1 GHz clock source. It has a low phase noise of -129 dBc/Hz at 10 kHz offset, can provide up to 9 dBm of power and is matched to 50 Ohms. The oscillator has a tuning voltage from 1.5 to 3.5 Vdc, tuning sensitivity of 2 MHz/V and require a supply of 8 V DC while drawing 30 mA of current. The ZRO1000A-LF is well suited for test instrumentation applications that require an extremely low phase noise clock source.