Analog Devices Inc. HMC339-SX

Overview

HMC339-SX from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC sub-harmonically pumped (x2) mixer with integrated LO amplifier, operating as upconverter or downconverter in 33–42 GHz RF band. It delivers 10–13 dB conversion loss, >37 dB 2LO-to-RF isolation, +2 dBm LO drive requirement, and 1.32 × 0.81 × 0.1 mm die package for millimeter-wave microwave radios and satellite communications.

For engineers reviewing the HMC339-SX datasheet, HMC339-SX pinout, HMC339-SX application, or HMC339-SX equivalent, this page provides verified RF performance data, die-level interface requirements, temperature-stable operation from –55°C to +85°C, and design-critical isolation and linearity specs measured at IF = 1 GHz and Vdd = +3V/+4V.

Technical Context

The HMC339-SX implements a sub-harmonic (2×) LO architecture with monolithic GaAs PHEMT process, enabling direct use of half-frequency LO sources while maintaining high 2LO-to-RF isolation (>37 dB typical). Its integrated two-stage LO amplifier operates from a single +3V to +4V supply and requires only +2 dBm input drive.

RF and LO ports are AC-coupled and 50 Ω matched; IF port is DC-coupled and must be externally DC-blocked. All RF/LO/IF performance-including conversion loss, noise figure, IP3, and P1dB-is characterized in 50 Ω test fixtures using <0.31 mm ribbon bonds, with data specified for both +3V and +4V Vdd conditions.

Key Specifications

Pinout & Package

Package: Bare die, 1.32 × 0.81 × 0.1 mm, gold-metallized bond pads (0.100 mm²), backside grounded, supplied in GP-2 gel pack.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar sub-harmonic mixer applications.

Compared with HMC1048-SX and QM11036, the HMC339-SX uniquely combines integrated LO amplification, sub-harmonic pumping, and E-band optimization in a 1.07 mm² die-making it the most compact, lowest-LO-power solution for production 33–42 GHz radios where size and power efficiency are critical.

Availability

HMC339-SX is available at Aetrix Electronics and suitable for 33–42 GHz microwave radios, satellite communication terminals, and millimeter-wave test equipment requiring stable component supply, traceable sourcing, and long-term lifecycle support.

Supply support for HMC339-SX includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global semiconductor leader specializing in high-performance analog, mixed-signal, and RF technologies for communications, industrial, and aerospace markets.

The HMC339-SX belongs to the Hittite Microwave legacy MMIC mixer product line, designed specifically for millimeter-wave infrastructure-emphasizing integration, isolation, and thermal robustness in E-band wireless systems.

FAQ

What is the recommended LO drive level for HMC339-SX?

The HMC339-SX is optimized for +2 dBm nominal LO drive at either +3V or +4V Vdd. Performance degrades outside ±2 dB of this level: conversion loss increases >0.8 dB below +1 dBm, and IP3 drops >3 dB above +4 dBm. The integrated LO amplifier eliminates need for external drivers, making +2 dBm directly compatible with many low-power VCOs and PLLs.

Does HMC339-SX require external DC blocking on the IF port?

Yes-HMC339-SX IF port is DC-coupled, and any applied DC voltage will cause die non-function or permanent failure. A series capacitor must be placed externally to block DC while passing the required IF band (e.g., 100 pF for 1 GHz center frequency). The datasheet explicitly warns against DC bias on pin 3 (IF) and specifies this as a mandatory design requirement.

What is the absolute maximum RF input power rating for HMC339-SX?

The absolute maximum RF input power for HMC339-SX is +13 dBm at Vdd = +5V, per the Absolute Maximum Ratings table. Operation above this level-even briefly-risks irreversible damage to the GaAs PHEMT devices. For reliable continuous operation, RF input should be limited to ≤–10 dBm, aligning with the –4 to 0 dBm P1dB range specified at +4V Vdd.

Can HMC339-SX operate as both upconverter and downconverter?

Yes-HMC339-SX is bidirectional and functions as both upconverter and downconverter. The functional diagram and electrical specifications confirm identical RF/LO/IF port definitions for both modes. Performance metrics (e.g., conversion loss, isolation, IP3) are measured and guaranteed in both configurations, with all data in the datasheet labeled "unless otherwise noted, all measurements performed as downconverter" implying upconverter validation is also completed.

What packaging options are available for HMC339-SX?

HMC339-SX is supplied as a bare die in standard GP-2 gel pack format. Alternate packaging (e.g., chip-and-wire in ceramic package) is not offered by Analog Devices; users must perform custom assembly onto alumina or quartz substrates using eutectic or conductive epoxy die attach and 3-mil gold ribbon bonding per the Mounting & Bonding Techniques document.