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Part Number: SN65C3222E
Dear Technical Support Team,
Could you show the charge pump circuit of SN65C3222E?
ADI' IC shows it.
In reply to Max Robertson:
Thank you for your reply.
I understand your answer.
By the way, our customer had a mistake of connection.
V+ should be connect to GND through capacitor, but V+ connects to Vcc.
It seems correct operation as RS232 on their system.
Is it possible to use it? They'd like to know the reason why it affects behavior.
But I'd like to ask them change of correct connection definitely.
In reply to ttd:
It is OK to connect the V+ capacitor (C3) to VCC instead of ground. This capacitor is used for filtering, and both VCC and ground can typically serve as stable voltage references.
By the way, I have attached a drawing of the charge pump circuit for your reference in case it is useful.
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