When it comes to selecting a crystal oscillator for your project, choosing the right frequency range is critical. The most common options are kHz (kilohertz) and MHz (megahertz) oscillators, each with unique advantages and typical use cases.
Key Features:
Typical Frequency: 32.768 kHz (binary-friendly)
Extremely low power consumption, ideal for battery-powered devices
Used in Real-Time Clock (RTC) applications
Small package size, suitable for wearable or compact electronics
Applications:
Smartwatches & Fitness Bands
Energy Meters
Medical Wearables
Low-power IoT Sensors
Key Features:
Offers higher frequency and stability
Suitable for microcontrollers, RF modules, and data communication
Enables faster data processing and precise clocking
Often used in applications where timing accuracy and speed are critical
Applications:
Microcontrollers (MCUs)
GPS and RF Transceivers
Networking Equipment
Industrial Controllers
Power Budget: Use kHz oscillators if power efficiency is your top priority.
Speed Requirement: MHz oscillators are better for fast switching and data handling.
Board Space: Ultra-small kHz packages may fit where MHz options won’t.
Timing Accuracy: MHz oscillators generally offer better long-term frequency stability.
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