HMC188MS8E

Overview

The HMC188MS8E is a miniature frequency doubler housed in an 8-lead MSOP plastic package. It operates within an input frequency range of 1.25 GHz to 3 GHz. The device utilizes passive Schottky diode technology, which contributes no measurable additive phase noise to the multiplied signal. Typical suppression of undesired fundamental and higher-order harmonics is 45 dB relative to input signal levels. The conversion loss at the second harmonic (2Fo) is typically 15 dB. Isolation between the third harmonic (3Fo) and fourth harmonic (4Fo) is also specified at 45 dB. The component requires an input drive level ranging from 10 dBm to 20 dBm.

Feature Summary

• Passive Schottky diode technology ensures zero measurable additive phase noise on the multiplied signal.
• High suppression of undesired fundamental and higher-order harmonics typical at 45 dB.
• Compact 8-lead MSOP plastic package design suitable for high-volume surface mount applications.

Applications

• Wireless Local Loop systems
• LMDS, VSAT, and Point-to-Point Radios
• UNII & HiperLAN applications
• Test Equipment

Procurement Notes

Verify current availability status as this component may be obsolete or discontinued. Confirm that the replacement part number HMC1096LP3E meets all functional requirements if sourcing new inventory. Ensure compatibility with existing PCB layouts and thermal management strategies when transitioning to alternative components. Validate electrical specifications against original design constraints before final procurement decisions.

Selection Notes

Select this component for applications requiring economical frequency doubling where direct generation at higher frequencies is cost-prohibitive. Consider the specific input drive level requirements of 10 to 20 dBm when designing the preceding stage. Evaluate the 15 dB conversion loss impact on system power budget. The passive nature of the device offers linearity benefits but requires adequate input power compared to active solutions.

Part Context

The HMC188 series represents a family of GaAs MMIC frequency multipliers developed by Analog Devices (formerly Hittite Microwave). These devices are designed for RF and microwave applications where compact size and low phase noise are critical. The MSOP packaging facilitates automated assembly and integration into dense circuit boards. This specific model targets the lower end of the Ku-band and C-band spectrum inputs.

Replacement Considerations

Public confirmed substitute part number: HMC1096LP3E. Verify pinout compatibility and electrical performance equivalence before substitution.