MC14046BDWG

Clock Generators, PLLs, Frequency Synthesizers Overview

The MC14046BDWG is a Phase Locked Loop (PLL) integrated circuit manufactured by onsemi in a 16-pin SOIC-Wide package. It integrates two phase comparators, a voltage-controlled oscillator (VCO), a source follower, and a zener diode. The device operates within a supply voltage range of 3.0 V to 18.0 V and supports an operating temperature range from -55°C to +125°C. Phase Comparator 1 functions as an exclusive OR gate with duty cycle limitations, while Phase Comparator 2 utilizes leading edge sensing logic without duty cycle restrictions. The component is lead-free and RoHS compliant.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrated dual phase comparators: XOR-based PC1 and rising-edge triggered PC2
• Voltage-Controlled Oscillator (VCO) with linear frequency control via external RC components
• Built-in Zener diode for power supply regulation assistance
• Buffered outputs compatible with Low-Power TTL logic levels

Clock Generators, PLLs, Frequency Synthesizers Applications

• FM and FSK modulation and demodulation circuits
• Frequency synthesis and multiplication systems
• Tone decoding and data synchronization conditioning
• Motor speed control applications

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm packaging type. The 'DWG' suffix indicates a tube package containing 47 units per tube. Confirm that the required automotive qualification status aligns with the standard part number versus the NLV prefix variant, as the latter requires unique site and control change requirements.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a single-chip PLL solution with both digital and analog phase detection capabilities is required. Ensure the design accommodates the input resistance variations across the specified temperature range. Verify that the external low-pass filter components meet the damping ratio requirements for the chosen phase comparator configuration to maintain loop stability.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This device belongs to the MC14046B family of CMOS phase-locked loops. It serves as a pin-for-pin replacement for the CD4046B. The MC14046BDWG specifically denotes the wide-body SOIC package variant. Other variants in the series include tape and reel options such as the MC14046BDWR2G.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The datasheet explicitly identifies the MC14046BDWG as a pin-for-pin replacement for the CD4046B. Designers should verify electrical parameter compatibility, particularly regarding output drive currents and propagation delays, before substituting.