On Sat, 14 Mar 2015 13:36:39 -0400, Phil Hobbs
wrote:
On 3/14/2015 1:07 PM, Jim Thompson wrote:
Oscillator Proposal...
Suppose I have a series RLC, one end grounded, the other end driven by
a chip, how might I make that into an oscillator?
All wild ideas accepted... this is for a custom chip.
...Jim Thompson
Series RLC is harder than parallel, because to leading order there's no
signal on the pin at resonance. (If it were parallel, you could do a
single-ended version of the MC1648, which you may have heard of.)
Gee! That part number sure sounds familiar ;-)
You need to arrange a negative resistance at the pin, which isn't hard
to do, and use the AC current to drive the next stage.
Cheers
Phil Hobbs
I was fretting over not wanting a DC path to ground, but maybe that
can be minimized.
...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: skypeanalog | |
| Voice
480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at
http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.