Re: Difference in luma-chroma delay of C64/C128 compared to standard S-video

From: Pasi 'Albert' Ojala <>
Date: Tue, 5 Sep 2017 01:49:09 +0300
Message-ID: <>
On 09/05/17 00:55, wrote:
> This is on a 250466, don't know what exactly (what circuit) sits in the modulator there. While obviously the signal is far less clean from a 64 than from the generator, the results seem to be:
> - C alone and C on the composite seem to be almost exactly the reversed phase.
> - the "almost" is about plus 17ns for the composite C
> - Y alone and Y on the composite seem to be about 23ns apart
> - the "settling"[*] on composite is noticeably longer with some ringing
"Ringing" indicates the signal has been low-pass-filtered.

> That makes it about 6ns difference in Y/C luma-chroma time relation between the separated and composite.


       Message was sent through the cbm-hackers mailing list
Received on 2017-09-05 00:00:03

Archive generated by hypermail 2.2.0.