Mystery oscillator

[willie_phistterbut]

Recently received a package of components from Ebay. Inside were a number of decent caps, connectors and grab bag style random junk. Some of note are these 25.175 Mhz oscillators marked Saronix 9316P 197-0565E. Can't find much info on it. If anyone has info or project ideas for them let me know.

[bktemp]

Why mystery?
It seems to be a common 14 pin crystal oscillator, probably operating at 5V and outputting 25.175MHz.
25.175MHz was the video clock for 640x480 VGA resolution. That matches the 1993 datecode 9316P.

Saronix is now part of Diodes Inc:
https://www.diodes.com/products/connectivity-and-timing/crystal-and-crystal-oscillator/

[Ian.M]

Edit: BKtemp beat me to it

That's the pixel clock frequency for VGA 640x480, 60Hz. From the date code, and the lack of any info for a Saronix 197 series it was probably custom ordered by a VGA card manufacturer in the early '90's then ceased being used some years later , possibly due to the introduction of frequency synthesis techniques allowing multi-mode card designs to get rid of the array of crystals they used to have.   

To do: output a VGA video signal from a PIC, or possibly an over-clocked AVR