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Timing Devices FAQ
Timing Devices FAQ
Find FAQs
MEMS Resonator
Characteristics
What is a MEMS based timing device?
What is the difference between an oscillator and a resonator?
What is the oscillation principle of a MEMS resonator?
What is the drive circuit of a MEMS resonator?
Precautions on Using
Is it acceptable to clean or apply a resin coating?
Environment
Does the product comply with EU RoHS regulations?
Does the product comply with REACH regulations?
Other
What is the minimum order quantity?
What is the country of origin?
Ceramic Resonators (CERALOCK)
Characteristics
Please explain the difference between automotive grade CERALOCK and consumer grade.
Is there a limit to input voltage and signal?
Please explain “the oscillation start up time” of CERALOCK.
Is it necessary to consider drive level for CERALOCK?
What are the meanings of the Marking?
Does CERALOCK have orientation?
Is there any problem if CERALOCK is mounted in opposite direction?
Why does frequency correlation occur when CERALOCK is mounted in opposite direction?
Operation Circuit
Please explain the role of each component of the oscillation circuit.
Is there anything I should consider when designing circuit trace pattern of oscillating circuit?
Which type of capacitor should be used as a loading capacitor in an oscillation circuit?
Please explain possible causes of abnormal oscillation, and appropriate countermeasures.
Please explain possible causes of oscillation stop, and appropriate countermeasures.
Please explain noise-suppressing measures.
Please explain the IC type that may frequently develop abnormal oscillation, and the cause of abnormal oscillation.
What is "Curie point"?
What is "spurious oscillation"?
Please explain abnormal oscillations other than spurious oscillation, and their check method.
Mounting
Does CERALOCK have orientation?
Is there any problem if CERALOCK is mounted in opposite direction?
Why does frequency correlation occur when CERALOCK is mounted in opposite direction?
Is there a recommended re-flow condition about SMD type CERALOCK?
Is there a recommended flow condition about lead type CERALOCK?
Is there anything I should consider when designing circuit trace pattern of oscillating circuit?
Quality Reliability
Under what conditions should CERALOCK be stored?
Please explain expire date (Shelf life) of the products.
Is the baking processing necessary for SMD CERALOCK?
Precautions on Using
Are there any points to be aware of when using CERALOCK?
Are there any points to be awere of when we take CERALOCK off PCB for failuer analsys of CERALOCK?
Are there any points to be awere of in ultrasonic cleaning of CERALOCK?
Can a lead type CERALOCK be exposed to a liquid?
What are the risks when external stress is applied to a lead type CERALOCK?
Environment
Are they compliant with EU RoHS directive?
Are they compliant with REACH Regulation?
Other
Application of Murata Timing Devices
Where is the country of origin ?
Crystal Units
Characteristics
What factor in a oscillation circuit will be a cause of module malfunction?
Please let me know a cause and measures for oscillation stop.
Please let me know a cause and measures for oscillation frequency difference.
If small oscillation amplitude will be a cause of trouble in oscillation circuit?
It seems that oscillation frequency drift by temperature is not normal. What is a cause?
Can I apply conformal coating or washing?
Mounting
Can I apply conformal coating or washing?
Environment
Are they compliant with EU RoHS directive?
Are they compliant with REACH Regulation?
Other
Application of Murata Timing Devices
Where is the country of origin ?
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