XGHC Microcontroller Clock Solution

Embedded Systems Application

Description

Complete crystal solution featuring XGHC quartz crystal resonators and oscillators optimized for microcontroller clock applications with various package options and frequencies.

Core Advantages

Wide frequency range from 3.2MHz to 100MHz
High frequency stability with tight tolerance options
Compact SMD packages for space-constrained designs
Low ESR for reliable oscillator startup
Comprehensive package options (HC-49/S, 3225, 2520, 2016, 1612)

Recommended Bill of Materials (BOM)

Item Part Number Description Quantity Datasheet
1 XGHC-3225-8MHz-20pF 8MHz crystal for low-speed MCU applications 1 📄 Download
2 XGHC-3225-16MHz-20pF 16MHz crystal for standard MCU clock 1 📄 Download
3 XGHC-2520-25MHz-12pF 25MHz crystal for high-speed applications 1 📄 Download

Applications

Microcontroller Clock
Embedded Systems
IoT Devices
Consumer Electronics
Industrial Control

Technical Specifications

Frequency Range
3.2MHz to 100MHz
Frequency Tolerance
±10ppm to ±50ppm
Load Capacitance
6pF to 32pF
E S R
20Ω to 200Ω depending on frequency
Temperature Range
-40°C to +125°C
Drive Level
10μW to 100μW

Customer Success Stories

IoT Device Manufacturer

Consumer Electronics | Smart Home Controller

Challenge

Required compact, low-power crystal for ESP32-based IoT device

Solution

Implemented XGHC 2016 40MHz crystal with optimized load capacitors

Results

FAE Expert Insights

S

Senior FAE

Applications Engineer

10+ years

Professional Insights

In my experience supporting hundreds of MCU designs, crystal-related issues are among the most common causes of board bring-up problems. The XGHC crystal series offers excellent performance and reliability when properly implemented. I always recommend using the load capacitance calculator to verify component values and following PCB layout guidelines closely. For critical applications, consider using active oscillators (TCXO) instead of passive crystals for better stability and guaranteed startup.

Key Takeaways

  • Always calculate and verify load capacitance
  • Follow PCB layout guidelines carefully
  • Measure actual oscillation margin
  • Consider active oscillators for critical applications

Decision Framework

Decision Framework
Steps:
  1. Evaluate requirements
  2. Compare solutions
  3. Consult FAE

Ready to Implement This Solution?

Contact our FAE team for design support and quotes

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Frequently Asked Questions

How do I select the right crystal frequency?

Crystal frequency selection depends on your microcontroller requirements. Most MCUs specify supported crystal frequencies in their datasheet. Common frequencies are 8MHz, 16MHz, 25MHz for main clock, and 32.768kHz for RTC. Contact FAE for specific recommendations.

What is the importance of load capacitance?

Load capacitance determines the exact operating frequency of the crystal. Using incorrect load capacitance will cause frequency offset and may prevent oscillation. Always match the crystal's CL specification with your circuit design.

How do I ensure reliable oscillator startup?

Ensure proper PCB layout (short traces, ground plane), correct load capacitance values, adequate drive level from MCU, and select crystal with appropriate ESR for your frequency. Contact FAE for design review.