anything. If there is no change, that would tend to eliminate the drive signal as a source
of problems.
Some devices are simply very sensitive to ANY stray capacitance between the input
and output sides. Some devices are extremely sensitive to interference coupled to pin
7, which (unwisely) provides a connection to the photo-transistor base. To test this as a
possible problem source, try snipping off pin 7 on your device and see if that affects the
results beneficially. If it does, you might want to consider designing your own ultra-low-
stray-capacitance socket and daughterboard, or avoiding sockets entirely and using
soldered devices instead.
70
Summary of Contents for AVRQ-5-B
Page 52: ...Bottom side 52 ...
Page 57: ...PCB 299B FOR ADUM241E0BRWZ 57 ...
Page 82: ...PCB 158R2 LOW VOLTAGE POWER SUPPLY ...
Page 87: ...DUT WIRING ON STANDARD DAUGHTERBOARD PCB 267C ...
Page 88: ...DUT WIRING ON CUSTOMIZED TLP2366 DAUGHTERBOARD PCB 298B ...
Page 89: ...DUT WIRING ON CUSTOMIZED ADUM241E0BRWZ DAUGHTERBOARD PCB 299B ...
Page 91: ...PERFORMANCE CHECK SHEET 91 ...