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cy29940/42/48 clock distribution product | Cypress Semiconductor

cy29940/42/48 clock distribution product

Summary: 1 Reply, Latest post by SAMP.CY on 17 Feb 2014 04:07 AM PST
Verified Answers: 0
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gilv's picture
1 post



i am using both cy29940 and cy29948 in two locations in my system. 

i am trying to understand why the cy29948 output is a clean square wave while the output of the 29940 has a significant ripple (~0.4v of the 2.4vptp output). both are connected similarly with one output terminated with 50ohm (scope) and the rest are disconnected. 

i would like to know if there is a difference in isolation between outputs in both products and if there is where can i aquire a 1:18 distributer with high output isolation (the cy29942 maybe?).





if nacessary i can produce a waveform of both and a schematic connection.

SAMP.CY's picture
Cypress Employee
44 posts

 There is no difference in the outputs of CY29940 and CY29948. Please upload the schematic and waveforms for both, so we get more inputs to analyze.


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