[Milsurplus] Smart People: Feeding the DS-1077 Oscillator

[Ray Fantini]

Looks a lot like they have a synchronous data port where external clock cycle determines when and where data can be written. Maybe it's just easier to order them preprogramed?
The big issue I see with this device that it only has finite steps and is not programmable to any frequency. Using their online frequency calculator tool the frequencies that I would need for my Sunair that I need to get rocks for are not programmable on that chip, example I need a rock for M&S net on 5.357, so that's fc + 1.65 the frequency of the carrier that comes out to 7.007 so I would need a oscillator to be at that frequency. Using their online frequency calculator it tells me the closest that oscillator will come to that frequency is 7.01753 (DS1077-133) If I just wanted to listen to WWV at 5.00 I would need a rock at 6.650 but again the closest device is 6.666, at least that's how it looks to me using their online frequency calculator tool.
Ray F

-----Original Message-----
From: milsurplus-bounces at mailman.qth.net [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of David Stinson
Sent: Thursday, October 03, 2013 8:03 AM
To: milsurplus at mailman.qth.net
Subject: [Milsurplus] Smart People: Feeding the DS-1077 Oscillator

To the many people smarter than me on computers and itty-bitty chips:
Here's a Maxim DS-1077 Programmable Oscillator I want to use in a boatanchor project:
https://www.sparkfun.com/products/9089
"The DS1077 features a 2-wire serial interface that allows in-circuit on-the-fly programming of the programmable prescalers (P0 & P1) and divider
(N) with the desired values being stored in NV (EEPROM) memory."
The datasheets have lots of good info, but as always the writers make assumptions that I'm smarter than I am.
Programming I can figure-out.... I think.
They've got some published "C" code and there's bound to be a freeware compiler out there.

What I need to know:
I have a computer with an RS-232 port.
I have a chip with two pins.
Someone please draw me a hardware diagram of how I'm supposed to hook these two together.

73 DE Dave AB5S 

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