XIO2001: XIO2001 refclk termination scheme

Chang Fei Yee

Prodigy 130 points

Part Number: XIO2001
Other Parts Discussed in Thread: LMK00334

Hi TI,

When refclk of XIO2001 is driven by a HCSL differential clock, what termination scheme shall be used?

When driven by HCSL clock, is refclk of XIO2001 a NRZ signal?

thanks.

over 3 years ago

0 Davor Glisic over 3 years ago

TI__Expert 7935 points

Hello-

Typically, an HCSL clock driver would need 50-ohm terminations to GND near the driver outputs. Series resistors (e.g. 33 ohms) may be used to slow down the edges. Figure 19 of the LMK00334 datasheet provides an example interface.

I don't quite understand your second question. An HCSL clock source would drive the XIO2001 RefCLK inputs.

Regards,

Davor

0 Chang Fei Yee over 3 years ago in reply to Davor Glisic

Prodigy 130 points

thanks Davor.

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XIO2001: XIO2001 refclk termination scheme