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Self-oscillation of HMC434E

The customer uses HMC434E.

Does HMC434E have the self-oscillation?

Even if he does not input the signal into HMC434E, it outputs a signal from OUT(pin#6) by self-oscillation.

The frequency is 500 to 570MHz at OUT-pin.

Please tell me the frequency range of self-oscillation of HMC434E.

<Condition of Measurement>

- Using HMC-EVB of HMC434

- Input Vcc=3V

- Input Signal : No Signal

- Output : Connected to Spectrum Analyzer

BR, Tomo