MC12093DG

Clock Generators, PLLs, Frequency Synthesizers Overview

The MC12093DG is a single modulus prescaler utilizing MOSAIC V technology, designed for low-power frequency division of high-frequency input signals up to 1.1 GHz. It operates on a supply voltage ranging from 2.7 V to 5.5 V with a typical supply current of 3.0 mA and power dissipation of 6.75 mW at minimum voltage. The device features divide ratios of ÷2, ÷4, or ÷8 selected via SW1 and SW2 pins. An integrated standby mode reduces current drain to approximately 120 µA when the SB pin is LOW. On-chip output termination drives a 2.0 pF load, delivering an output voltage swing between 0.6 Vpp and 0.8 Vpp depending on frequency.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Toggle frequency up to 1.1 GHz with divide ratios of ÷2, ÷4, or ÷8
• Low power consumption: 3.0 mA typical supply current
• Stand-by mode reduces current to 120 µa typical
• On-chip output termination for direct drive of high impedance loads

Clock Generators, PLLs, Frequency Synthesizers Applications

• Frequency synthesis systems requiring low power prescaling
• RF communication equipment operating up to 1.1 GHz
• Test and measurement instruments for signal division

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the ordering suffix 'DG' corresponds to the SOIC-8 NB package containing 98 units per tube. Confirm RoHS compliance and Pb-Free status as specified in the datasheet attributes. Ensure the application environment stays within the -40°C to +85°C operating temperature range and that supply voltage does not exceed 5.5 Vdc.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a single modulus prescaler is required for frequencies up to 1.1 GHz with minimal power budget. The SOIC-8 NB package is suitable for surface mount assembly. Consider external parallel resistance if the internal termination cannot drive the specific load capacitance requirements of the downstream circuitry.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The MC12093DG belongs to the MC12093 family of prescalers manufactured by onsemi. It is distinct from other variants like the MC12093DR2G (Tape & Reel) and MC12093MNR4G (DFN8 package) primarily by its shipping configuration and physical footprint. All variants share identical electrical characteristics and functionality.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include MC12093DR2G for reel-based procurement or MC12093D for non-RoHS compliant versions. Cross-package substitution requires verifying thermal and mechanical constraints, particularly when moving from SOIC-8 to DFN8.

Clock Generators, PLLs, Frequency Synthesizers FAQ

How is the divide ratio determined?

The divide ratio (÷2, ÷4, or ÷8) is controlled by the logic states of the SW1 and SW2 pins. H=VCC-0.5V to VCC, L=Open.

What is the function of the Stand-By pin?

Driving the SB pin LOW (GND to 0.8 V) disables the prescaler, reducing the supply current to a typical 120 µA.

Can the output drive capability be increased?

Yes, an external resistor can be added in parallel from the OUT pin to GND to increase output power, provided the maximum allowable output current of 4.0 mA is not exceeded.