In SX Microcontrollers, SX/B Compiler and SX-Key Tool, philpem wrote:

Hi,
Does anyone happen to know what chip Parallax used on the SX to generate the programmable oscillator output signal? I'm designing a 'reimplementable coprocessor' (which is just a fancy way of saying 'a really fast FPGA hooked up to a USB port') and need to generate a variable clock signal of up to 100MHz for the FPGA. I was looking at the Dallas EconOscillator chips, but DigiKey has them listed as 'Non-stock' ("you're gonna need to buy 6,000 of those, sir") and Maxim/Dallas Direct are showing a 12-week leadtime on them.
Ideally I want a chip with no EEPROM on it with a frequency divider that I can change on-the-fly. The old Cypress ICD2053B would have been ideal, but it looks like it's been obsolete since the late '90s.

Does anyone know what chip Parallax used on the SX-Key? Seems like a variant of the osc circuit on the 'Key would be ideal for my needs...

Thanks.

---------- End of Message ----------


You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=143834

Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com

The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2006 (http://www.dotNetBB.com)