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CY4608M Development Kit - Custom XTAL | Cypress Semiconductor

CY4608M Development Kit - Custom XTAL

Summary: 1 Reply, Latest post by bharadwajajay on 18 Dec 2015 12:43 AM PST
Verified Answers: 0
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yordasurf_1487041's picture
1 post

The BoM for the CY4608M Development Kit calls for a customised crystal "CRYSTAL 12.000 MHZ 20PF 49US (Drive Level: 600uW, Tolerance: +/- 50ppm)". The only difference I can see between this and a standard ECS-120-20-4 is that the drive level is 600 uW compared with the standard 500 uW. Has anyone used a standard 500 uW crystal in their designs and seen aging (frequency change) problems?

bharadwajajay's picture
2 posts

We had a similar requirement and higher wattage crytal was not available. We added a series resistor along the crystal and made sure crystal drive strength was within specification. The setup worked in our lab for long time across temperatures and it worked. you can consider doing that. 

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