Spice power source?

Question

I'm kind of stuck on making a 50 ohm power source in Spice (instead of just using the voltage or current sources). I would like to make a

50 ohm power source with a Pout of 0dBm. I realize I have to use the Spice voltage source with a series 50 ohm resistor, but do I set the voltage source to 632 mV or 316 mV in order to get a 0dBm Pout (in a fifty ohm system)?

Thank You,

Bill

Jim Thompson · Accepted Answer

I assume you mean you want 0dBm into a 50 Ohm load from a 50 Ohmsource, so you use 632.46mV for VP                                        ...Jim Thompson-- |  James E.Thompson, P.E.                           |    mens     ||  Analog Innovations, Inc.                         |     et      ||  Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    ||  Phoenix, Arizona            Voice:(480)460-2350  |             ||  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  ||                  |    1962     |             I love to cook with wine.      Sometimes I even put it in the food.

billcalley · Answer

Thanks James!  Appreciate the great answer.Bill

Jim Thompson · Answer

I was a geek named "James" until I met my wife-to-be... I then became "Jimmy" ;-)

...Jim Thompson

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| 1962 | I love to cook with wine. Sometimes I even put it in the food.

qrk · Answer

It's hard to see Jim as a "James"! Too dang formal.----Mark

Spice power source?

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