CD4046 Phased Locked Loops – PLL

CD4046 CMOS Phase Locked Loop (PLL) IC – 16 Pin DIP

Quick Summary

The CD4046 is a CMOS Phase Locked Loop (PLL) IC used for frequency control, signal synchronisation, and tone decoding applications. It combines a voltage-controlled oscillator (VCO) with phase comparators, making it ideal for learning advanced timing, frequency, and control concepts in electronics.

Key Features

• Integrated PLL with voltage-controlled oscillator (VCO)
• Two phase comparators for flexible operation
• Wide frequency range with external components
• CMOS technology for low power consumption
• Standard 16-pin DIP package

What’s Included

• 1 × CD4046 Phase Locked Loop IC (16-pin DIP)

Curriculum Links

Australian Curriculum (v9.0):
• ACTDEK042 – Investigate how systems are designed and controlled
• ACTDIP050 – Implement digital solutions
Victorian Curriculum:
• VCDSTS039 – Technologies systems
• VCDTDI037 – Algorithm design and implementation
NSW (Stage 4–5 Technology Mandatory):
• TE4-2DP – Designs and produces solutions
• TE4-5AG – Applies problem-solving and evaluation

Classroom Use / Learning Outcomes

Students will:
• Understand frequency control and signal locking
• Explore voltage-controlled oscillators (VCO)
• Build tone decoder and frequency tracking circuits
• Apply advanced timing and signal processing concepts

Teacher Benefits

• Introduces advanced electronics concepts
• Supports extension activities for higher-level students
• Versatile IC for multiple applications
• Encourages experimentation with frequency and signals

Perfect For

• Frequency and timing circuits
• Tone decoding projects
• Signal synchronisation systems
• Advanced STEM and electronics learning