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Part Number: OPT9221
There seems to be limited information on the requirements for the SYSCLK_IN line for the OPT9221 controller. Specifically:
-Is this a square wave input or sine wave?
-What is the allowable jitter?
-How much current is the clock expected to supply?
-Are there any recommended reference designs?
Hi John, SYSCLK_IN is a 1.8V level input. The standard VIH (1.17V) and VIL (0.63V) voltages are relevant for this input. It's meant to be a square wave input and must conform to the VIH, VIL, recommended operating voltages. We have published a reference design of a working system and also sell evaluation modules for the same: www.ti.com/.../opt8241-cdk-evm. We have added up to 50 ohm resistors in series with an input signal and the system continues to work fine so that might help answer the question about the current. Regards, Subhash
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