That should be OK connected directly to the input as the resultant
reverse bias on the switching transistor base-emitter junctions is well
within the specified limits
One can check this both by simulating the performance and by actual
measurement with a scope.
Bruce
Edgardo Molina wrote:
Dear John,
Your response is welcome. My square signal input is 3.3V and 50% duty cycle.
Low end 0.5V, High end 2.7V.
Will I be able to make it without the bypass? Or should I start warming the
soldering station?
Thanks!
Edgardo Molina
Dirección IPTEL
www.iptel.net.mx
T : 55 55 55202444
M : 04455 10045822
Piensa en Bits SA de CV
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On Nov 13, 2012, at 8:21 PM, John Ackermann N8UR<j...@febo.com> wrote:
Hello Edgardo --
The T2-Mini uses a wide-range input circuit based on one that Wenzel published
with some modifications. It works with a square wave input (I've done some
limited testing) but I can't verify whether the input amplitude range will
extend as far on either the low or the high side.
If you want to drive with a true TTL signal, you could bypass the input circuit
entirely and feed directly into the PIC, though that would require some
soldering.
John
On Nov 13, 2012, at 6:48 PM, Edgardo Molina<xe1...@amsat.org> wrote:
Dear Group,
Does anybody know is the TAPR TADD-2 Mini works with input signals with square
wave geometry? Or Sine wave only?
Thank you.
Regards,
Edgardo Molina
Dirección IPTEL
www.iptel.net.mx
T : 55 55 55202444
M : 04455 10045822
Piensa en Bits SA de CV
Información anexa:
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retener una copia de los mismos. Queda estrictamente prohibido copiar este
mensaje o hacer usode el para cualquier propósito o divulgar su en forma
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