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i.MX353 LPDDR Bus impedance control

Question asked by Tony1z on Feb 5, 2013
Latest reply on Feb 5, 2013 by Tony1z

Hello Sir,

 

I saw that i.MX Layout application note recommends to control single-ended impedance 50 Ohms on LPDDR bus.

If my PCB stackup and trace width are limited, can I use lower single-ended impedance (45 Ohms for example) on LPDDR bus ?

Is lower single-ended impedance better for LPDDR bus ?

 

 

Best regards,

Tony Lin

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