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Re: 4420 driver ICs
Original poster: Fucian-at-aol-dot-com
In a message dated 3/31/2004 11:31:14 PM Eastern Standard Time,
>Question: are the inputs essentially FET gates? They may hold a
>charge which could turn them on the moment the supply rails are
>powered-up if the inputs are not connected to anything. Static
>sensitivity might also be a problem if they are mishandled.
Umm im not sure what you mean...The input to the 4420?Or the MOSFET?The
input to the 4420 is connected to the antenna...The MOSFET gate is
connected directly to the 4420 output via a 10ohm resistor.
It seems to be directly linked to the metal enclosure...Dont know why, but
im throwing it out...