Application Solutions

Selecting the right XGHC crystal solution depends on your application requirements: (1) For standard microcontroller clock - choose Crystal Resonators with appropriate frequency and package

(2) For applications requiring high frequency stability - choose TCXO (Temperature Compensated Crystal Oscillator)

(3) For frequency tuning applications - choose VCXO (Voltage Controlled Crystal Oscillator)

(4) For automotive applications - choose AEC-Q200 qualified automotive-grade crystals. Consider factors like frequency accuracy, temperature range, package size, and power consumption. Contact LiTong FAE for personalized recommendations.

Match solution to application requirements. Contact FAE for guidance.

LiTong provides comprehensive support for XGHC crystal solutions: (1) Technical consultation - helping select the right crystal for your application

(2) Application engineering - supporting load capacitance calculation, PCB layout, and oscillator circuit design

(3) Spice models - providing simulation models for circuit analysis

(4) Quality support - handling RMA processes and quality issues

(5) Design-in support - providing reference designs and technical documentation

(6) Long-term supply - ensuring stable supply for production programs. Our FAE team has deep expertise in crystal oscillator applications across consumer electronics, automotive, and industrial markets.

LiTong provides end-to-end support from design to production for XGHC crystal solutions.

Yes, XGHC offers custom crystal solutions for specific application requirements: (1) Custom frequencies - tailored to specific clock requirements

(2) Special packages - non-standard sizes and form factors

(3) Extended temperature range - beyond standard specifications

(4) Tight tolerance - enhanced frequency accuracy for critical applications

(5) Special testing - additional screening or burn-in requirements

(6) Long-term supply - guaranteed availability for 5-10 years. Custom solutions require minimum order quantities and development lead times. Contact LiTong to discuss your specific requirements and feasibility.

Custom solutions available for volume applications. Contact LiTong to discuss requirements.

XGHC crystal product lead times vary by product type and order volume: (1) Standard crystals - typically 2-4 weeks for common frequencies

(2) TCXO/VCXO - 4-6 weeks depending on specifications

(3) Special frequencies or packages - 6-8 weeks

(4) Custom products - 8-12 weeks for development and qualification

(5) Large volume orders - may have extended lead times. LiTong maintains strategic inventory for high-demand products to support urgent requirements. For critical projects, we recommend forecasting and buffer stock arrangements.

Standard products 2-4 weeks, special products 4-8 weeks. Contact sales for specific lead times.

Yes, XGHC offers sample programs for evaluation purposes: (1) Free samples - available for qualified commercial customers with valid projects

(2) Sample types - standard frequencies for functional evaluation

(3) Lead time - typically 1-2 weeks for standard samples

(4) Quantity - usually 5-10 pieces per part number for initial evaluation

(5) Support - technical documentation and FAE support included with samples

(6) Purchase - samples can be purchased if free samples are not available. Contact LiTong sales with your project details to request samples.

Free samples available for qualified projects. Contact LiTong sales to request evaluation samples.

Load capacitance (CL) calculation is critical for proper crystal oscillation. The formula is: CL = (C1 × C2) / (C1 + C2) + Cstray, where C1 and C2 are the external load capacitors, and Cstray is the stray capacitance from PCB traces and IC pins (typically 3-5pF). For example, if your crystal requires 12pF load capacitance and Cstray is 4pF, you need (C1 × C2) / (C1 + C2) = 8pF. Using C1 = C2 = 16pF gives approximately 8pF plus stray capacitance. Contact LiTong FAE for detailed calculation support.

Use the load capacitance formula and consult FAE for verification.

Crystal resonators (quartz crystals) are passive components that require external oscillator circuitry to generate a clock signal. They provide high Q factor and excellent frequency stability at low cost. Crystal oscillators (XO, TCXO, VCXO, OCXO) are active components with built-in oscillator circuitry that provide a direct clock output. Oscillators are easier to use (no external circuit design needed) and offer better performance (especially TCXO/OCXO for temperature stability), but at higher cost and power consumption. Choose resonators for cost-sensitive designs with available oscillator circuitry

choose oscillators for ease of use and superior performance.

Choose resonators for cost-sensitive designs; choose oscillators for ease of use and better performance.

Key parameters for selecting a crystal oscillator include: (1) Frequency - the operating frequency required by your system

(2) Frequency stability - ppm tolerance over temperature and time

(3) Supply voltage - must match your system voltage (1.8V, 2.5V, 3.3V, 5V)

(4) Output type - CMOS, LVCMOS, LVDS, HCMOS, or clipped sine wave

(5) Operating temperature range - commercial (0°C to +70°C), industrial (-40°C to +85°C), or automotive (-40°C to +125°C)

(6) Package size - HC-49/S through-hole or SMD packages (3225, 2520, 2016, 1612)

(7) Phase noise/jitter - critical for high-speed communication applications. Contact LiTong FAE for selection assistance.

Consider frequency, stability, voltage, output type, temperature range, package, and phase noise requirements.