5-14-08. Update for schem rev A.
Printed Wiring Board
Master Oscillator or Buffer
6-13-08. Update for schem rev B.
PWB-MOB, Master Osc or Buffer, size-A
Use your mouse's "right click" and "Save Link" to download:
ExpressPCB software. Use as a base for new designs.
Base artwork for PWB, in ExpressPCB software.
Use this drawing to order the pwb from Express.
There is no parts list.
The PWB-MOB is a printed wiring board,
that is layed out to allow construction of either an oscillator or
buffer. It will take that
signal, square the waveform, and drive up to 3 separate
users. The input signal can be a sine or square wave with a level
from -10 dBm to +18 dBm. The input impedance is determined by the
value of R9.
The PWB-MOB contains a center
biased buffer and 3 line drivers. Each
output is 5 volt CMOS that can drive a 50 ohm line that is
with either a high impedance load, or 50 ohms. A
resistor is shown as a series element in each output, but can be
changed to capacitors.