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The OC551 from Teledyne Cougar is a Voltage Controlled Oscillator with Frequency 450 to 550 MHz, Power 0 dBm, Supply Voltage 5 V, Tuning Voltage 0 to 5 V, Phase Noise -92 dBc/Hz @10kHz. More details for OC551 can be seen below.
7 to 14 GHz Voltage Controlled Oscillator
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