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From: tomb@hplsla.HP.COM (Tom Bruhns)
Newsgroups: sci.electronics
Subject: Re: NTSC sync generator chip needed
Message-ID: <5170104@hplsla.HP.COM>
Date: 15 Feb 91 00:01:40 GMT
References: <BD600B514D9F202F87@ulkyvx.bitnet>
Organization: HP Lake Stevens, WA
Lines: 11

>Can someone out there point me to an NTSC sync generator chip?  I am designing
>a WEFAX decoder that will output video with interlaced sync and i'm trying
>to keep the parts count down.  I checked my National and Motorola libraries
>with no luck.

National used to make one -- MM5230???  I don't recall, but a CRTC
IC is generally a more useful way to do this.  A 6545 can be programmed
to generate pretty much standard NTSC video, interlaced and all.
It also generates all the memory scanning info you should need at
the same time.  I haven't kept up lately, but suspect there are a lot
of CRTC chips that could do similarly