BRIDGE MODULE Pre-Amplifier
Wrote by Zang 2008.3.29
The bridge module is an update version of the BALANCE LINE DRIVER.the module is basis on 4 pieces of single opamp,it may be configure for 2 unbalanced signal to 2 balanced signal converter or configure for a standard stereo preamp.
the design goal is easy to placed inside the chassis of existing system.or easy to make a stand alone preamp.
-compact design with smt resistors and capacitors,
-two jumper on the pcb for function switch(standard unbalance stereo or two channel bridge),
-including fixed voltage regulated chips.the module need +/-18VDC to +/-30VDC to run,
-4 X 11 via pads on the pcb for circuit bend
PCB layout silk layer view
PCB connections for unbalanced stereo system
PCB connections for two channel bridge
Assembled module closeup view
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