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Old 1st Apr 2019, 9:55 am   #15
Autozavod
Triode
 
Join Date: Feb 2018
Location: London, UK.
Posts: 25
Default Re: Assistance with modulator design

Quote:
Originally Posted by Semir_DE View Post
Hi everyone,

I just wanted to let you know that I am in the process of designing a modulator with PLL that can be tuned accurately to any frequency in 250kc increments. It will use an old Motorola MC145106 PLL chip that can be set up with a simple dip switch -no processor or programming required.

After reading Matts post I am now thinking of making a combination of this PLL and the TDA 5660. This would give any audio-vision spacing with FM carrier and can be tuned to any frequency in the VHF bands.

Semir
Dear Semir,

Thank you very much for your kind offer. I cheated by taking up the suggestion of purchasing an MT47 modulator.

Cheers,
Matt
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