External triggering of a 32-channel system: LP filters needed?

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External triggering of a 32-channel system: LP filters needed?

Post  np_cottaris on Mon Nov 08, 2010 7:11 am

Hello,

I want to trigger stimulation of a 32-channel system (consisting of 4 STG4008 devices) externally, using a single TTL pulse. I plan to send this pulse to Trigger IN of channel #1, and then have the SYNC Out of that channel trigger the remaining 31 channels.

Do I need to interface a separate resistor/capacitor low-pass filter to the BNC connector of each of the 32 channels to avoid ringing, as stated in page 57 of the manual?

Regards,

Nicolas P. Cottaris, Ph.D.

np_cottaris

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Re: External triggering of a 32-channel system: LP filters needed?

Post  Frank MCS on Mon Nov 08, 2010 9:44 pm

Dear Dr. Cottaris,
this is just a suggestion for a circuit that creates a propper TTL. You can connect the STGs to each other directly.

Frank MCS
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