Clocks Forum Discussions
I am using CY2305 with the configuration shown in the schematic below.
I measured the waveform of CLK1. It has a lot of jitter. (Approximately 2ns)
According to the data sheet, Cycle-to-cycle jitter is 200ps(max), but there is no Period jitter spec. Is this waveform normal? If yes, what can I do to reduce jitter?
I measured CLK1, but the waveform (jitter) is the same for the other output pins. It does not change depending on the load of the opposite device. Jitter tends to increase at high temperatures.
Thanks,
Tetsuo
Hi,
We use CY2305SXI-1H on a design where we are receiving back for several customer defect reports during start-up at low temperature (lower than 10°C). After deep investigation on the design, we have probably found a defect root cause which is clock output interruption even after the stabilization of 1 ms after a clock shift on the fly.
As you will see in the scope snapshot hereunder :
-Yellow signal is the end of the 1 ms delay (go low when timer is elapsed) ;
- Cyan signal is the clock input (switching from 8,33 MHz to 100 MHz) at the beginning of the 1ms delay ;
- Magenta is one clock output. As we can seen we observe multiple clock interruptions even after 1ms of stabilization during power ON at low ambient temperature (lower than 10°C). Important to notice that this anomaly is not observable on all devices (probably less than 5 % but not fully characterized as per today).
Did you receive such equivalent user's feedback ?
Could you help us to investigate on which factor it could be linked ? Could it be linked to manufacturing issues linked to some component ?
Thanks in advance for your technical support.
Best regards,
Stephan COLLE
Show LessHi,
We are in search of Clock generator and found CY27410 is suitable for us. We want to know the programming kit part number which is suitable for CY27410.
also please confirm CY3675 clock maker clock programming kit is suitable for CY27410 programming. also provide the socket adapter part for 48-QFN package.
Regards,
Duraiselvi
Show LessHi,
Kindly help us to know the clock programmer kit for CY27410FLTXI.and provide EOL of the part
Thanks,
Duraiselvi
What is the expected lifecycle for the CY2710, how many more years is Cypress expected to continue to build this part family.
Is there a specific part number in the CY2710 that is the higher running part?
Thanks
Show LessHello,
We recently upgraded to the CY3675 Clockmaker and I’m having a little trouble figuring out which adaptors will be compatible with the ones we currently have.
We have
CY3695
CY3698
Cy3699
Could you please advise what adaptors are the equivalent to these.
Show LessHi,
Kindly help us to know the clock programmer kit for CY27410FLTXI.and provide EOL of the part
Thanks,
Duraiselvi