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Subject: Adding a DC bias to a differential clock signal

Date: 04/08/02 at 1:08 PM
Posted by: Mario Santos
E-mail: msantos@seacorp.com
Message Posted:

I have a circuit that transmits a square wave 10Mhz clock signal with an amplitude of +1.65V to -1.65V (3.3V p/p). My problem is that the receiving circuitry requires a "positive" voltage input only, from 0V to +5V. How can I add a DC Bias Voltage of ~1.65V to the signal in order eliminate any negative voltage? Is this straight forward or does it depend on other factors such as Receiver impedance (130 ohm), etc,? any help would be appreciated.
Mario

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