onsemi | MCK12140DG

The MCK12140 is a phase frequency−detector intended for phase−locked loop applications which require a minimum amount of phase and frequency difference at lock. When used in conjunction with high performance VCO such as the MC100EL1648, a high bandwidth PLL can be realized. The device is functionally compatible with the MC12040 phase−frequency detector with the maximum frequency extending to 800 MHz.

When the Reference (R) and VCO (V) inputs are unequal in frequency and/or phase, the differential UP (U) and DOWN (D) outputs will provide pulse streams which when subtracted and integrated provide an error voltage for control of a VCO. The device is packaged in a small outline, surface mount 8−lead SOIC package. There are two versions of the device to provide I/O compatibility to the two existing ECL standards. The MCH12140 is compatible with MECL 10H™ logic levels while the MCK12140 is compatible to 100 K ECL logic levels. This device can also be used in +5.0 V systems.

Key Features:

• 800 MHz Typical Bandwidth
• Small Outline 8-Lead SOIC Package
• 75 kΩ Internal Input Pulldown Resistors
• >1000 V ESD Protection
• Pb−Free Packages are Available
• For proper operation, the input edge rate of the R and V inputs should be less than 5.0 ns