Analog Devices Inc. HMC1042LC4TR-R5
- Part No.:
- HMC1042LC4TR-R5
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Mixers
- Package:
- 24-TFQFN Exposed Pad
- Datasheet:
-
HMC1042LC4TR-R5.pdf
- Description:
- IC MMIC IQ MIXER 27-34GHZ LC4
- Quantity:
- Payment:

- Shipping:

Inventory:2,801
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Product details
Overview
HMC1042LC4TR-R5 from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC I/Q mixer designed for image-reject downconversion or single-sideband upconversion in 15–33.5 GHz RF systems. It delivers 11–14 dB conversion loss, 30 dBc image rejection, and +22 dBm input IP3, operating with DC–3.5 GHz IF bandwidth and +15 dBm LO drive. It serves as a compact surface-mount alternative to hybrid image-reject assemblies in point-to-point radio transceivers.
For engineers reviewing the HMC1042LC4TR-R5 datasheet, HMC1042LC4TR-R5 pinout, HMC1042LC4TR-R5 application, or HMC1042LC4TR-R5 equivalent, key selection criteria include RF/LO frequency coverage (15–33.5 GHz), USB/LSB sideband suppression performance, thermal derating limits (328 mW at 85 °C), and grounding requirements for the 24-lead 4×4 mm alumina package.
Technical Context
The HMC1042LC4TR-R5 integrates two double-balanced GaAs MESFET mixer cells and an on-die 90° hybrid to enable intrinsic quadrature signal processing without external hybrids in USB mode. Its architecture supports both image-reject mixer (IRM) and single-sideband upconverter operation, with measured amplitude balance ±0.5 dB and phase balance ±2.5° across 15–33.5 GHz when used with external IF hybrid.
It features AC-coupled 50 Ω RF and LO ports, DC-coupled IF1/IF2 ports (with ≤3 mA DC current limit), and requires all ground pins plus the exposed paddle to be soldered to PCB RF ground. Absolute maximum ratings include +20 dBm LO drive, +18 dBm RF/IF input, and 150 °C channel temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF/LO Frequency Range | 15–33.5 GHz - covers E-band and upper Ka-band for high-capacity wireless backhaul. |
| IF Bandwidth | DC–3.5 GHz - enables baseband I/Q demodulation and wideband SSB upconversion without external IF filtering. |
| Image Rejection | Typ. 30 dBc - suppresses unwanted sideband by >1000× voltage ratio, critical for spectral purity in dense RF environments. |
| LO to RF Isolation | Typ. 40 dB - minimizes LO leakage into antenna path, reducing self-interference and easing front-end filter design. |
| Input IP3 | +22 dBm - supports high dynamic range reception in interference-prone microwave links. |
| Conversion Loss | 11–14 dB - defines signal attenuation through mixer; impacts system noise figure and gain budget allocation. |
| Package | 24-lead 4×4 mm leadless SMT (alumina body, gold-over-nickel plating, MSL3) - compatible with standard reflow and requires full paddle grounding. |
Pinout & Package
24-lead 4×4 mm leadless surface-mount package with alumina body, gold-over-nickel plating, and exposed ground paddle requiring solder connection to PCB RF ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 6, 7, 10, 12, 13, 17–24 | N/C | Internally unconnected; must be externally grounded per RF layout best practice to stabilize reference potential. |
| 3, 5, 8, 14, 16 | GND | Dedicated ground terminals; combined with exposed paddle, form low-inductance RF return path. |
| 4 | RF | AC-coupled 50 Ω RF input/output port; matched for 15–33.5 GHz operation without external matching. |
| 9 | IF2 | DC-coupled I-channel IF port; supports DC–3.5 GHz but limited to ±3 mA DC bias to prevent damage. |
| 11 | IF1 | DC-coupled Q-channel IF port; identical electrical behavior to IF2; used with IF2 for quadrature baseband output. |
| 15 | LO | AC-coupled 50 Ω LO input port; rated for +15 dBm typical drive; supports full 15–33.5 GHz LO range. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 90° Hybrid | On-die quadrature generation eliminates need for external IF hybrid in USB mode, reducing board area and insertion loss. |
| Wide IF Bandwidth | DC–3.5 GHz IF support enables direct baseband sampling and flexible modulation schemes including OFDM and QAM. |
| High Linearity | +22 dBm input IP3 and +15 dBm P1dB allow operation in high-signal environments without compression or intermodulation distortion. |
| Thermal Robustness | 198 °C/W junction-to-package thermal resistance and 328 mW max dissipation at 85 °C support reliable operation in sealed outdoor enclosures. |
| ESD Protection | Class 1A HBM rating (≤250 V) mandates strict handling protocols but confirms robustness against assembly-level static discharge events. |
Applications
| Point-to-Point Radio | Test Equipment & Sensors |
|---|---|
|
Use Scenario: High-capacity 23–28 GHz licensed backhaul link between cell towers with 500 MHz channel bandwidth. IC Role / Device Role / Timing Role: Image-reject downconverter converting received RF to 2 GHz USB IF for ADC sampling. Use Value: 30 dBc image rejection prevents adjacent-channel interference; 11 dB conversion loss preserves SNR in cascaded receiver chain. |
Use Scenario: Vector network analyzer front-end module measuring S-parameters of millimeter-wave components. IC Role / Device Role / Timing Role: Single-sideband upconverter generating calibrated 30 GHz stimulus signal from 2 GHz IF source. Use Value: +22 dBm IP3 ensures clean stimulus generation under high-power sweep conditions; DC–3.5 GHz IF enables arbitrary waveform synthesis. |
| Military End Use | Point-to-Multi-Point Radio |
|
Use Scenario: EW system receiver detecting low-probability-of-intercept signals in contested 18–32 GHz spectrum. IC Role / Device Role / Timing Role: Wideband I/Q downconverter feeding digital beamformer with phase-coherent I/Q data. Use Value: ±2.5° phase balance and ±0.5 dB amplitude balance preserve quadrature integrity for accurate DOA estimation. |
Use Scenario: Fixed wireless access base station serving multiple CPEs in 24.25–27.5 GHz band using OFDMA. IC Role / Device Role / Timing Role: Dual-conversion upconverter translating baseband I/Q to 26 GHz carrier with sideband suppression. Use Value: Compact 4×4 mm footprint enables dense array integration; MSL3 rating supports automated manufacturing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar I/Q mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC1043LC4TR-R5 | Same 24-lead 4×4 mm package but optimized for 22–38 GHz RF/LO range; 2 dB higher conversion loss at 33 GHz. | Better suited for upper E-band and W-band extensions; lower image rejection (25 dBc typ.) below 25 GHz. | Select HMC1043LC4TR-R5 only if primary operation is above 30 GHz and wider RF bandwidth outweighs image rejection penalty. |
| Qorvo QM11036 | SiGe BiCMOS process; 17–32 GHz RF range; 35 dBc image rejection; 13 dB conversion loss; requires external 90° hybrid. | Higher integration density but lacks on-die hybrid; needs additional passive components and layout area. | Choose QM11036 when cost sensitivity dominates and external hybrid integration is acceptable for improved image rejection. |
Compared with HMC1042LC4TR-R5, HMC1043LC4TR-R5 extends upper frequency coverage at the expense of image rejection below 25 GHz, while QM11036 trades integrated hybrid functionality for higher image rejection and SiGe process benefits-requiring redesign for external hybrid placement and impedance matching.
Availability
HMC1042LC4TR-R5 is available at Aetrix Electronics and suitable for point-to-point radio, test equipment & sensors, and military end-use applications requiring stable component supply across extended temperature ranges and high-frequency reliability.
Supply support for HMC1042LC4TR-R5 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 acquired Hittite Microwave in 2014 and maintains its high-frequency RF portfolio, specializing in GaAs, GaN, and SiGe solutions for defense, communications, and instrumentation markets.
The HMC1042LC4TR-R5 belongs to Hittite's legacy MMIC mixer product line, engineered specifically for compact, high-performance image-reject and SSB upconversion in E-band wireless infrastructure and electronic warfare systems.
FAQ
What is the recommended LO drive level for optimal image rejection in HMC1042LC4TR-R5?
The HMC1042LC4TR-R5 achieves best image rejection (up to 30 dBc) at +15 dBm LO drive, as specified in the datasheet's electrical characteristics table. Deviating below +13 dBm or above +17 dBm reduces image rejection by 3–6 dB due to LO power-dependent quadrature accuracy. Always maintain ±0.5 dB LO power stability to preserve amplitude/phase balance.
Can HMC1042LC4TR-R5 operate as a downconverter without an external IF hybrid?
Yes, the HMC1042LC4TR-R5 can function as an image-reject downconverter without an external IF hybrid when configured for USB output using its integrated on-die 90° hybrid. However, for LSB operation or enhanced image rejection beyond 24 dBc, an external IF hybrid is required per datasheet Figure 1 and measurement notes.
What are the grounding requirements for HMC1042LC4TR-R5's exposed paddle?
All ground pins (3, 5, 8, 14, 16) and the exposed ground paddle of the HMC1042LC4TR-R5 must be soldered to a solid, low-inductance RF ground plane using ≥8 thermal vias. Inadequate paddle grounding causes >5 dB degradation in LO-to-RF isolation and increases conversion loss variation across frequency.
Does HMC1042LC4TR-R5 support DC-coupled IF operation, and what are the limits?
Yes, both IF1 (pin 11) and IF2 (pin 9) are DC-coupled ports supporting baseband operation. However, neither port may source or sink more than ±3 mA DC current; exceeding this risks permanent device failure. External DC blocking capacitors are required only when DC coupling is not needed.
How does temperature affect HMC1042LC4TR-R5's conversion gain and image rejection?
Over −40 °C to +85 °C, HMC1042LC4TR-R5 exhibits ≤2 dB variation in conversion gain and ≤6 dB variation in image rejection (e.g., 30 dBc at +25 °C drops to 24 dBc at −40 °C). These variations are characterized in datasheet Figures 3 and 5 and must be accounted for in wide-temperature-range system calibration.
HMC1042LC4TR-R5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-TFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- RF Type:
- -
- Frequency:
- 15GHz ~ 33.5GHz
- Number of Mixers:
- 2
- Gain:
- -
- Noise Figure:
- -
- Secondary Attributes:
- -
- Current - Supply:
- -
- Voltage - Supply:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QFN (4x4)
HMC1042LC4TR-R5 FAQ
1.How can I place an order for HMC1042LC4TR-R5 through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC1042LC4TR-R5 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for HMC1042LC4TR-R5 reliable?
The price and inventory of HMC1042LC4TR-R5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC1042LC4TR-R5 is usually 5 days.
3.What payment methods are accepted for HMC1042LC4TR-R5?
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HMC1042LC4TR-R5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC1042LC4TR-R5 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for HMC1042LC4TR-R5?
For technical support, including HMC1042LC4TR-R5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC1042LC4TR-R5 requirements.
6.How does Aetrix verify that HMC1042LC4TR-R5 is sourced from the original manufacturer or authorized distributors?
All HMC1042LC4TR-R5 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HMC1042LC4TR-R5 meets industry standards.
7.What is the process for return or replacement of HMC1042LC4TR-R5?
All HMC1042LC4TR-R5 units undergo pre-shipment inspection (PSI). If there is an issue with HMC1042LC4TR-R5, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The HMC1042LC4TR-R5 part is unused and in its original packaging.
Return procedure for HMC1042LC4TR-R5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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