MANUFACTURING REFERENCE
Quartz manufacturing processes
Explore wafer processing, assembly and testing with process diagrams and model specifications.
Explore both process diagrams ↗TECHNICAL RESOURCES
Timing selection resources & procurement questions
Practical guidance on device types, interfaces, load capacitance and alternatives for clearer selection and inquiries.
MODEL DOCUMENTATION
Find specifications by model
Product images, parameter tables and original specification images on the corresponding model pages.
Browse models and datasheets ↗ENGINEERING & PROCUREMENT
16 practical guides, organized by your question
Selection basicsCrystal or oscillator? Start with the interface
The same frequency does not establish interchangeability. Identify whether the host needs a crystal or an external clock.
Read the guide ↗
Domestic alternativesA specification checklist for oscillator alternatives
Frequency and footprint are a starting point. Compare electrical, mechanical, noise and validation requirements together.
Read the guide ↗
High-speed timingDifferential clocks: distinguish LVDS, LVPECL and HCSL
Differential timing is more than an extra output pin. Review levels, termination and jitter bandwidth with the receiver.
Read the guide ↗
Circuit matchingLoad capacitance: three checks for crystal matching
CL is not a simple sum of two external capacitors. Include the IC, layout and parasitic effects in the circuit review.
Read the guide ↗
Engineering guideFrequency-error budgets: ppm, temperature and aging
Start from the system limit and identify which errors a specification already includes.
Read the guide ↗
Engineering guide32.768 kHz and RTC: balancing power and accuracy
Compare the circuit architecture, not just the nominal frequency.
Read the guide ↗Engineering guideCrystal start-up failures: an orderly investigation
Separate device matching, board conditions and measurement effects.
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Engineering guideClock PCB layout and supply noise: a review checklist
A suitable device still needs sound decoupling, return paths and routing.
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Engineering guideTCXO, OCXO and VCXO: choosing by requirement
Compensation, oven control and voltage control solve different problems.
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Engineering guidePhase noise and RMS jitter: why one number is not enough
Integration limits, measurement setup and system constraints determine whether a comparison is useful.
Read the guide ↗Engineering guideOE, CRYSTAL, NC and DNC: review pins before replacement
Similar pin names do not establish the same behavior or electrical conditions.
Read the guide ↗
Engineering guideSpread-spectrum clocks and EMI: benefits and boundaries
Spread spectrum is a conditional design option, not a universal clock replacement.
Read the guide ↗
Engineering guideCrystal and RF filters: define the passband and impedance
Matching center frequencies do not establish interchangeability.
Read the guide ↗Procurement practiceA complete oscillator RFQ: a shared buyer–engineer checklist
Bring specifications, ordering codes and supply requirements together.
Read the guide ↗Procurement practiceOscillator replacements: from similar specifications to approval
Use a difference review, validation plan and approval record shared by engineering and purchasing.
Read the guide ↗Procurement practiceFrom samples to production: what to lock down
Keep the sample, datasheet, quotation and production code connected.
Read the guide ↗These notes support initial selection discussions and do not replace device datasheets, host IC design guidance or application validation. Request product datasheets by full part number.
PROCUREMENT FAQ
Procurement questions
Can I inquire with only a frequency and package?
Yes. Add the device type, voltage, output, temperature range, quantity and delivery target if available. A datasheet or marking photograph can also be attached to your email.
Can you source a nominated international brand?
You can inquire by brand and full part number. Channel, availability, lead time, lot and documentation requirements are reviewed for the quotation.
Can you help evaluate domestic alternatives?
Yes. We can compare candidates through resources including SCTF and CREC. Review electrical and mechanical requirements and complete circuit and application validation before substitution.
Can I discuss special frequencies, samples and smaller volumes?
Share the exact frequency, specification and quantity. Feasibility, sample terms, minimum order quantity and lead time depend on the part and manufacturer.
Are all displayed products in stock?
The site presents product categories and selection routes. Availability, stock, price and lead time are confirmed by quotation for the exact part and quantity.
Can I place and pay for an order online?
Orders follow confirmation of specification, quantity, pricing and delivery terms through agreed purchase documents. The website does not collect online payments.