FAQ
What does a crystal oscillator do in consumer electronics?
It provides the system’s base time reference and enables PLL-based frequency generation so compute, RF, and multimedia subsystems can stay synchronized.
When should I use a TCXO instead of a standard crystal or XO?
Use a TCXO when temperature variation or tighter clock tolerance materially impacts performance—common in RF connectivity, audio/video timing, or platforms with stringent frequency accuracy requirements.
Which parameters matter most for battery-powered devices?
Focus on low power, fast startup, correct CL/ESR for reliable oscillation at low voltage, and a package that matches height and assembly constraints.
How do I prevent startup and stability issues in compact layouts?
Keep the oscillator loop short, isolate it from switching nodes and antennas, match load capacitors, and ensure a clean ground return and proper decoupling.
What frequencies are commonly used in consumer products?
Typical references include 32.768 kHz (RTC), 8–40 MHz for MCU/SoC clocks, and application-specific frequencies for connectivity and peripheral timing. The reference table on this page lists many examples.
How should I use the IC reference table?
Treat it as a compatibility guide: start with your IC and footprint, narrow the package and FCom series, then confirm the final electrical specs against your design target.
