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HMC398QS16G from Hittite

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HMC398QS16G

Manufacturer: Hittite

8Ku-Band MMIC VCO with DIVIDE-BY-8, 14.0 - 15.0 GHz

Partnumber Manufacturer Quantity Availability
HMC398QS16G Hittite 2300 In Stock

Description and Introduction

8Ku-Band MMIC VCO with DIVIDE-BY-8, 14.0 - 15.0 GHz The HMC398QS16G is a GaAs MMIC I/Q downconverter manufactured by Hittite (now part of Analog Devices). Key specifications include:

- **Frequency Range**: 2.5 GHz to 4.0 GHz (RF), 0.5 GHz to 2.0 GHz (IF)
- **Conversion Gain**: 5 dB typical
- **Noise Figure**: 12 dB typical
- **Input IP3**: +18 dBm typical
- **LO Drive Level**: +10 dBm typical
- **LO to RF Isolation**: 30 dB typical
- **DC Supply Voltage**: +5V
- **Current Consumption**: 120 mA typical
- **Package**: 16-lead QSOP (3mm x 3mm)
- **Operating Temperature Range**: -40°C to +85°C

The device integrates an I/Q mixer, LO buffer amplifier, and IF amplifiers. It is designed for applications such as point-to-point radios, satellite communications, and military systems.

Application Scenarios & Design Considerations

8Ku-Band MMIC VCO with DIVIDE-BY-8, 14.0 - 15.0 GHz

Alternative Part Number

  • ADF4351BCPZ --: Analog Devices acquired Hittite; this PLL synthesizer is a common functional substitute for HMC398-series fractional-N PLLs, with integrated VCO and similar frequency range.
  • LMX2594RHAT --: Wideband PLL synthesizer covering similar frequency ranges with comparable phase noise performance, suitable as a cross-vendor replacement.
  • MAX2871ETJ+ --: Fractional-N/integer-N PLL synthesizer with integrated VCO, offering similar functionality and frequency coverage for HMC398 replacement.

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