Sujet : Re: Sinewave oscillator without gain control.
De : invalid (at) *nospam* invalid.invalid (Edward Rawde)
Groupes : sci.electronics.designDate : 24. Jan 2025, 07:02:37
Autres entêtes
Organisation : BWH Usenet Archive (https://usenet.blueworldhosting.com)
Message-ID : <vmvadu$2mkl$1@nnrp.usenet.blueworldhosting.com>
References : 1 2
User-Agent : Microsoft Outlook Express 6.00.2900.5931
"Bill Sloman" <
bill.sloman@ieee.org> wrote in message
news:vmv6ac$22ufe$1@dont-email.me...On 24/01/2025 11:14 am, Edward Rawde wrote:
Before you can make a 1kHz sinewave oscillator with constant output level and better than 120dB harmonic distortion you'll need
an
oscillator which does better than that when it passes through the required output level.
>
This is obviously true. Why do you think you need to tell us about it?
>
You do make me laugh sometimes Bill.
Your circuit doesn't come anywhere close to 120dB but it does depend on which simulator you ask.
Adding a FET gain stabilizer to the circuit I posted seems to have negligible effect on the distortion.
So I'd concentrate on the oscillator distortion level rather than the gain controller contribution if I wanted to attempt better
than 120dB.