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Analog Devices Inc. HMC520-SX
- Part No.:
- HMC520-SX
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Mixers
- Package:
- Die
- Datasheet:
-
HMC520-SX.pdf
- Description:
- IC MMIC IQ MIXER DIE 1=2PCS
- Quantity:
- Payment:
- Shipping:
Inventory:2,673
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Product details
Overview
HMC520-SX from Hittite Microwave Corporation (now part of Analog Devices) is a GaAs MMIC I/Q mixer designed for RF front-end signal translation in 6–10 GHz systems. It functions as either an image-reject mixer (IRM) or single-sideband upconverter, delivers 40 dB image rejection, +23 dBm input IP3, and 100 MHz USB IF output with DC–3.5 GHz IF bandwidth-enabling high-selectivity wireless transceivers.
For engineers reviewing the HMC520-SX datasheet, HMC520-SX pinout, HMC520-SX application, or HMC520-SX equivalent, this device requires attention to LO drive level (+15 dBm typical), RF/IF port coupling (AC/DC), ground paddle soldering, and external quadrature hybrid use for optimal sideband suppression in point-to-point radio and VSAT designs.
Technical Context
The HMC520-SX integrates two double-balanced GaAs MESFET mixer cells with an on-die 90° hybrid to generate quadrature IF outputs. Its architecture supports both downconversion (as IRM) and upconversion modes without internal IF hybrid-requiring external hybrid only for image/sideband rejection optimization.
It operates across full 6–10 GHz RF/LO range with DC–3.5 GHz IF bandwidth, achieves 7–9 dB conversion loss (IRM mode), and maintains amplitude balance ≤0.2 dB and phase balance ≤4° over temperature (−55°C to +85°C), enabling stable I/Q demodulation in wideband digital radios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF/LO Frequency Range | 6–10 GHz - Covers full X-band for military comms and licensed point-to-point links. |
| IF Bandwidth | DC–3.5 GHz - Supports baseband I/Q sampling and wide IF filtering without external AC coupling constraints. |
| Image Rejection | 28–40 dB - Enables >60 dB adjacent-channel suppression in IRM mode when combined with external hybrid. |
| Input IP3 | +22 to +23 dBm - Allows handling of strong interferers in dense RF environments without distortion. |
| LO–RF Isolation | 40–50 dB - Reduces LO leakage into antenna path, easing filter requirements in TDD/FDD transceivers. |
| Conversion Loss (IRM) | 7–9 dB - Defines system noise figure impact; lower loss preserves receiver sensitivity. |
| Amplitude/Phase Balance | ≤0.2 dB / ≤4° - Ensures <−35 dBc image residual in coherent demodulation architectures. |
Pinout & Package
24-lead 4×4 mm leadless SMT package with alumina body, gold-over-nickel plating, and exposed thermal ground paddle requiring soldering to PCB RF ground plane per MSL3 reflow profile (peak 260°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 6–8, 10, 13, 17–24 | N/C | No connection required; may be grounded without performance impact. |
| 3, 5, 12, 14, 16 | GND | RF/DC ground terminals; must connect to PCB ground plane with low-inductance vias. |
| 4 | RF | AC-coupled 50 Ω RF input/output port; matched across 6–10 GHz band. |
| 9 | IF1 | DC-coupled I-channel IF output; supports DC–3.5 GHz; max ±3 mA DC current. |
| 11 | IF2 | DC-coupled Q-channel IF output; identical electrical specs to IF1. |
| 15 | LO | AC-coupled 50 Ω LO input; requires +13 to +19 dBm drive for optimal linearity. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 90° hybrid | Enables true I/Q mixing without external phase-shifting components-reducing board area and phase error. |
| Leadless Pb-free SMT package | 4×4 mm footprint (16 mm²) eliminates wire bonding, supporting automated assembly and repeatable RF performance. |
| DC–3.5 GHz IF bandwidth | Permits direct baseband I/Q interface with ADCs/DACs or wideband IF filters without external coupling networks. |
| +23 dBm input IP3 | Supports high-dynamic-range receivers in interference-prone X-band applications such as satellite ground terminals. |
| −55°C to +85°C operation | Validated performance across industrial and outdoor telecom environments without derating. |
Applications
| Point-to-Point Radio | Digital Microwave Radio |
|---|---|
Use Scenario: High-capacity backhaul link operating at 7.5–8.5 GHz with 256-QAM modulation and tight adjacent-channel selectivity requirements. IC Role / Device Role / Timing Role: Image-reject mixer providing I/Q downconversion with >35 dB image suppression to enable low-error-rate demodulation. Use Value: 40 dB image rejection and 0.2 dB amplitude balance reduce EVM degradation by >2 dB versus standard double-balanced mixers. |
Use Scenario: Licensed 6–10 GHz digital radio transceiver requiring simultaneous transmit/receive with minimal LO feedthrough and spurious emissions. IC Role / Device Role / Timing Role: Dual-mode I/Q mixer used for both upconversion (SSB) and downconversion (IRM) within same RF front-end. Use Value: Single-component solution replaces discrete hybrid + two mixers, cutting BOM count by 3 parts and improving phase tracking stability. |
| VSAT Terminals | Military SATCOM |
Use Scenario: Ku-band VSAT outdoor unit (ODU) performing LNB downconversion from 10.7–12.75 GHz (via external LO) to 950–2150 MHz IF. IC Role / Device Role / Timing Role: IF-output mixer configured with external 90° hybrid to reject image band during first IF translation stage. Use Value: 50 dB LO–RF isolation minimizes LO radiation through antenna, easing EMC compliance in compact ODU enclosures. |
Use Scenario: Tactical X-band SATCOM terminal requiring jam-resistant operation with fast frequency agility and low phase noise susceptibility. IC Role / Device Role / Timing Role: High-linearity I/Q mixer in agile synthesizer-based transceiver, rejecting image signals under dynamic LO tuning. Use Value: +23 dBm IP3 and −55°C to +85°C operational range ensure reliable demodulation under battlefield thermal and RF stress conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar I/Q mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC1048LC4 | Wider RF range (4–12 GHz); higher conversion loss (9–11 dB); same 24-lead 4×4 mm package. | Better suited for multi-band systems spanning C/X/Ku bands; less optimal for narrow 6–10 GHz optimized designs. | Select HMC1048LC4 only if broader frequency coverage outweighs 2 dB conversion loss penalty. |
| ADL5375-05 | SiGe broadband I/Q modulator (0.3–6 GHz); integrated LO buffer; requires external LO; no DC-coupled IF. | Targeted at sub-6 GHz transmitters; lacks DC IF capability and X-band RF range-unsuitable for direct HMC520-SX replacement. | Consider ADL5375-05 only for new low-frequency transmitter designs where integration and LO buffering are prioritized over X-band operation. |
Compared with HMC1048LC4 and ADL5375-05, the HMC520-SX offers superior image rejection (40 dB) and DC-coupled IF ports specifically optimized for 6–10 GHz IRM applications-making it the preferred choice for X-band point-to-point and VSAT systems requiring minimal external components and high phase accuracy.
Availability
HMC520-SX is available at Aetrix Electronics and suitable for point-to-point radio, VSAT terminals, and military SATCOM systems requiring stable component supply, long-lifecycle support, and traceable GaAs MMIC sourcing.
Supply support for HMC520-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
Hittite Microwave Corporation, acquired by Analog Devices in 2014, specialized in high-frequency RFICs and MMICs for microwave and millimeter-wave applications.
The HMC520-SX belongs to Hittite's GaAs MMIC I/Q mixer product line, engineered for high-performance wireless infrastructure requiring precise quadrature signal processing in X-band systems.
FAQ
What is the recommended LO drive level for optimal performance of the HMC520-SX?
The HMC520-SX achieves best image rejection and IP3 at +15 dBm LO drive, with usable range from +13 to +19 dBm. At +15 dBm, image rejection reaches 40 dB and input IP3 peaks at +23 dBm. Lower LO drive degrades linearity and balance; exceeding +19 dBm risks reliability per absolute maximum ratings.
Does the HMC520-SX require an external IF hybrid for image rejection?
Yes-the HMC520-SX contains an internal 90° hybrid for RF/LO splitting but requires an external IF hybrid (e.g., Lange coupler) to combine IF1 and IF2 outputs for image rejection. Without it, the device operates as a standard double-balanced mixer with no inherent image suppression.
Can the HMC520-SX be used for DC-coupled I/Q baseband interfaces?
Yes-both IF1 and IF2 pins are DC-coupled and support operation from DC to 3.5 GHz. However, each IF pin must not source or sink more than ±3 mA DC current to prevent malfunction or damage; external biasing must comply with this limit.
What is the thermal management requirement for the HMC520-SX?
The HMC520-SX has a junction-to-package-bottom thermal resistance of 128.2 °C/W and requires the exposed ground paddle to be soldered to a thermally robust PCB ground plane with multiple low-inductance vias. At 85°C case temperature, power dissipation must not exceed 508 mW (derated above that point).
Is the HMC520-SX pin-compatible with other Hittite I/Q mixers like the HMC521LC4?
No-HMC520-SX is not pin-compatible with HMC521LC4. While both are 24-lead 4×4 mm packages, their pin functions differ: HMC521LC4 uses separate I/Q LO inputs and lacks the integrated 90° hybrid architecture of the HMC520-SX, making direct substitution impossible without layout revision.
HMC520-SX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- Die
- Packaging:
- Bulk
- Product Status:
- Obsolete
- RF Type:
- General Purpose
- Frequency:
- 6GHz ~ 10GHz
- Number of Mixers:
- 2
- Gain:
- -
- Noise Figure:
- -
- Secondary Attributes:
- Up Converter
- Current - Supply:
- -
- Voltage - Supply:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Die
HMC520-SX FAQ
1.How can I place an order for HMC520-SX through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC520-SX 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 HMC520-SX reliable?
The price and inventory of HMC520-SX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC520-SX is usually 5 days.
3.What payment methods are accepted for HMC520-SX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC520-SX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC520-SX?
HMC520-SX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC520-SX 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 HMC520-SX?
For technical support, including HMC520-SX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC520-SX requirements.
6.How does Aetrix verify that HMC520-SX is sourced from the original manufacturer or authorized distributors?
All HMC520-SX 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 HMC520-SX meets industry standards.
7.What is the process for return or replacement of HMC520-SX?
All HMC520-SX units undergo pre-shipment inspection (PSI). If there is an issue with HMC520-SX, 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 HMC520-SX part is unused and in its original packaging.
Return procedure for HMC520-SX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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