MCK12140D

Clock Generators, PLLs, Frequency Synthesizers Overview

The MCK12140D is a phase-frequency detector manufactured by onsemi, designed for use in phase-locked loop (PLL) applications. It operates with ECL logic levels and supports frequencies up to 800 MHz. The device features differential UP and DOWN outputs that generate pulse streams when reference and VCO inputs differ in frequency or phase. These outputs are integrated to produce an error voltage for VCO control. It utilizes a small outline 8-pin SOIC package and includes internal input pull-down resistors.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Supports typical bandwidth up to 800 MHz
• Compatible with MECL 10H logic levels
• Includes 75kΩ internal input pull-down resistors
• Provides greater than 1000 V ESD protection

Clock Generators, PLLs, Frequency Synthesizers Applications

• Phase-locked loops requiring minimal lock-in phase and frequency difference
• High-bandwidth PLL systems paired with high-performance voltage-controlled oscillators
• +5.0 V system implementations

Clock Generators, PLLs, Frequency Synthesizers Part Context

The MCK12140D is part of the MCK12140 series, which is functionally compatible with the MC12040 phase-frequency detector. While the MCH12140 variant is compatible with MECL 10H, the MCK12140D specifically aligns with 100K ECL logic levels. Both variants share similar operational characteristics within their respective logic families.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The MCK12140D is functionally compatible with the MC12040 phase-frequency detector. Designers should verify logic level compatibility, as the MCK12140D is specified for 100K ECL standards.