ASNT5144-KHC

Overview

The ASNT5144-KHC is a high-speed SiGe frequency doubler designed for broad-band frequency multiplication in the 8-35 GHz range. It accepts a differential CML input clock from 4 to 17.5 GHz and delivers a double-frequency output with low jitter (1 ps peak-to-peak). The device features automatic duty cycle correction via internal feedback loops, maintaining a 50% output duty cycle. It operates on a single +3.3V or -3.3V supply, consuming 660 mW. Fabricated in SiGe technology, it is housed in a custom 24-pin CQFN package with a thermal slug for heat dissipation.

Feature Summary

• Broad-band frequency doubling from 8 GHz to 35 GHz output
• Automatic output duty cycle correction to 50% via internal feedback
• Low output jitter of 1 ps peak-to-peak
• Fully differential CML I/O with internal 50 Ohm termination

Applications

• High-speed measurement and test equipment
• Clock generation systems requiring precise frequency multiplication
• Proof-of-concept prototyping for RF circuits

Procurement Notes

Verify the specific revision level (Rev 1.0.2) against current supplier documentation. Confirm power supply configuration requirements (+3.3V vs -3.3V) as PCB layout differs significantly between positive and negative supply modes. Ensure proper thermal management via the center heat slug soldered to the appropriate plane.

Selection Notes

Select this component when a wide bandwidth frequency doubler is required without external tuning. The choice between positive and negative supply depends on system ground reference and AC/DC coupling needs. Differential CML signaling is recommended for optimal performance. Verify that input frequencies fall within the 4-17.5 GHz range for the specified output bands.

Part Context

The ASNT5144-KHC belongs to the ASNT5144 family of SiGe frequency multipliers. The suffix '-KHC' denotes the specific custom 24-pin CQFN package type and pinout configuration provided by the manufacturer, Advanced Science And Novel Technology Company, Inc.

Replacement Considerations

No direct public substitutes are listed. Alternative solutions may require discrete multiplier stages or different SiGe ICs with similar bandwidth and jitter specifications, necessitating full redesign of matching networks and control logic.