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Analog Devices Inc. HMC521ALC4TR
- Part No.:
- HMC521ALC4TR
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Mixers
- Package:
- 24-CLCC Exposed Pad
- Datasheet:
-
HMC521ALC4TR.pdf
- Description:
- IC MMIC IQ MIXER 24CLCC
- Quantity:
- Payment:
- Shipping:
Inventory:100
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Product details
Overview
HMC521ALC4TR from Analog Devices is a GaAs MMIC I/Q mixer designed for microwave downconversion and single-sideband upconversion in 8.5–13.5 GHz RF systems. It delivers 9 dB typical conversion loss, 27.5 dBc image rejection, and 39 dB LO-to-RF isolation, operating with dc–3.5 GHz IF bandwidth and 15 dBm LO drive. It serves as an image-reject mixer in VSAT radios and military EW receivers.
For engineers reviewing the HMC521ALC4TR datasheet, HMC521ALC4TR pinout, HMC521ALC4TR application, or HMC521ALC4TR equivalent, this page provides verified RF performance data, validated 24-terminal LCC package mapping, confirmed I/Q port roles (IF1/IF2), thermal and ESD ratings, and real-world sideband suppression behavior across temperature and LO power.
Technical Context
The HMC521ALC4TR integrates two double-balanced mixer cells and an on-die 90° hybrid coupler in a GaAs MESFET process, enabling intrinsic image rejection without external hybrids. Its architecture supports both downconversion (image-reject mode) and upconversion (single-sideband mode) with identical RF/LO frequency range (8.5–13.5 GHz).
It operates with ac-coupled 50 Ω RF and LO ports, dc-coupled IF1/IF2 ports rated for ±2 mA, and requires all GND pins plus the exposed pad to be tied to RF/dc ground. Performance remains stable across −40°C to +85°C, with thermal resistance θJA = 120°C/W under natural convection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 8.5–13.5 GHz - supports X- and Ku-band radar, SATCOM, and EW front-ends without external tuning. |
| IF Bandwidth | dc to 3.5 GHz - enables baseband I/Q sampling and wideband modulation schemes including QPSK and 16-QAM. |
| Conversion Loss (Typ) | 9 dB - low loss preserves system noise figure; measured at IF = 100 MHz, LO = 15 dBm, TA = 25°C. |
| Image Rejection | 27.5 dBc typical - suppresses unwanted sideband by >27 dB without calibration or trimming. |
| LO to RF Isolation | 39 dB typical - minimizes LO leakage into antenna paths, reducing spurious emissions and receiver desensitization. |
| Input IP3 | 16 dBm typical - supports high-dynamic-range operation in dense RF environments like ECM jammers. |
| Package | 3.9 mm × 3.9 mm, 24-terminal ceramic LCC (E-24-11) - RoHS-compliant, surface-mountable, with exposed thermal pad. |
Pinout & Package
3.9 mm × 3.9 mm, 24-terminal ceramic leadless chip carrier (LCC) package (E-24-11), RoHS compliant, with exposed thermal pad requiring connection to ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 3, 5, 12, 14, 16 | GND | RF and DC ground reference; must be connected to PCB ground plane and exposed pad for thermal and signal integrity. |
| 4 | RF | Radio frequency input/output port; 50 Ω ac-coupled, matched for 8.5–13.5 GHz operation. |
| 9 | IF2 | Quadrature IF output (Q-phase); dc-coupled, supports dc–3.5 GHz; max ±2 mA sink/source current. |
| 11 | IF1 | In-phase IF output (I-phase); dc-coupled, identical electrical specs to IF2; used with IF2 for I/Q demodulation. |
| 15 | LO | Local oscillator input; 50 Ω ac-coupled, requires 15 dBm nominal drive for specified conversion loss and image rejection. |
| 1–2, 6–8, 10, 13, 17–24 | NIC | Not internally connected; floating terminals - must remain unconnected on PCB to avoid parasitic coupling. |
| EPAD | Exposed Pad | Thermal and electrical ground path; soldered to PCB ground plane to achieve θJA = 120°C/W and ensure RF stability. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 90° Hybrid | On-die quadrature generation eliminates need for external hybrid coupler, reducing board area and assembly complexity. |
| Image-Reject Downconversion | 27.5 dBc typical image suppression enables direct RF sampling in SDR architectures without analog image filtering. |
| Wide IF Bandwidth | dc–3.5 GHz IF support allows baseband I/Q processing and wide instantaneous bandwidth capture for pulse-Doppler radar. |
| Surface-Mount Construction | RoHS-compliant LCC package with no wire bonds enables reflow-compatible manufacturing and repeatable RF performance. |
| High LO–RF Isolation | 39 dB typical isolation prevents LO radiation from compromising antenna pattern integrity in T/R modules. |
Applications
| Microwave VSAT Radios | Electronic Warfare Receivers |
|---|---|
|
Use Scenario: Dual-polarized Ka-band VSAT terminal receiving 12.2–12.7 GHz downlink signals in mobile maritime platforms. IC Role / Device Role / Timing Role: Image-reject downconverter translating RF to dc–3.5 GHz I/Q baseband for digital demodulation. Use Value: 27.5 dBc image rejection avoids analog preselection filters, reducing BOM cost and insertion loss in compact radomes. |
Use Scenario: Wideband SIGINT receiver scanning 8.5–13.5 GHz for threat emitter identification in airborne EW pods. IC Role / Device Role / Timing Role: High-linearity I/Q mixer providing phase-coherent digitization of intercepted signals. Use Value: 16 dBm input IP3 maintains dynamic range amid strong co-channel jammers; dc-coupled IF enables zero-IF architectures. |
| Test Equipment Front-Ends | Military C3I Transceivers |
|
Use Scenario: Vector signal analyzer measuring adjacent channel power ratio (ACPR) of Ku-band satellite modems. IC Role / Device Role / Timing Role: Calibrated downconverter with stable conversion loss (<±0.5 dB over temperature) for amplitude accuracy. Use Value: 9 dB typical conversion loss and <0.1 dB amplitude balance minimize gain calibration overhead across 8.5–13.5 GHz sweep. |
Use Scenario: Secure tactical datalink transceiver performing SSB upconversion from 100 MHz IF to 10.7 GHz RF band. IC Role / Device Role / Timing Role: Single-sideband upconverter suppressing unwanted sideband to meet MIL-STD-461 CS114 emission limits. Use Value: 7 dB conversion loss at 10.5–11.7 GHz and 22–27 dBc sideband rejection reduce post-mixer filtering requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar I/Q mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC774A | Wider RF range (10–20 GHz), higher conversion loss (10.5 dB typ), same 24-pin LCC package. | Better suited for Ka-band test equipment; less optimal below 10 GHz due to degraded image rejection. | Select when extending coverage beyond 13.5 GHz; verify LO drive (requires 17 dBm) and thermal derating at full bandwidth. |
| ADMV1013 | SiGe BiCMOS, integrated LO synthesizer, 24–44 GHz range, 12 dB conversion loss, QFN-32 package. | Enables fully integrated transceiver design but lacks dc-coupled IF and requires external IF amplification. | Choose for new Ka-band phased array designs needing on-chip LO; avoid if dc–3.5 GHz IF or legacy LCC layout compatibility is required. |
Compared with HMC774A and ADMV1013, the HMC521ALC4TR offers superior image rejection (27.5 dBc) and dc-coupled IF capability within its native 8.5–13.5 GHz band, making it optimal for space-constrained VSAT and EW systems where analog calibration and external hybrids must be minimized.
Availability
HMC521ALC4TR is available at Aetrix Electronics and suitable for microwave VSAT radios, electronic warfare receivers, and test equipment front-ends requiring stable component supply, consistent RF performance across temperature, and RoHS-compliant surface-mount packaging.
Supply support for HMC521ALC4TR 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 is a global leader in high-performance analog, mixed-signal, and RF ICs, serving aerospace, defense, communications, and instrumentation markets with precision signal processing solutions.
The HMC521ALC4TR belongs to Analog Devices' Hittite Microwave MMIC product line, engineered specifically for broadband microwave communication and electronic warfare systems demanding high integration, low conversion loss, and robust image rejection.
FAQ
What is the recommended LO drive level for optimal performance of the HMC521ALC4TR?
The HMC521ALC4TR is characterized at 15 dBm LO input power, delivering 9 dB typical conversion loss and 27.5 dBc image rejection. Operation at 11–19 dBm is supported, but deviation from 15 dBm degrades amplitude/phase balance and increases conversion loss variance. The HMC521ALC4TR datasheet specifies 15 dBm as the nominal LO drive for guaranteed specifications.
Can the HMC521ALC4TR be used for upconversion, and what sideband suppression does it provide?
Yes, the HMC521ALC4TR functions as a single-sideband upconverter with 22–27 dBc sideband rejection across 10.5–11.7 GHz at IF = 100 MHz. This performance is achieved using its internal 90° hybrid and dual mixer cells-no external components are needed. The HMC521ALC4TR maintains 7 dB conversion loss in this mode, enabling efficient SSB transmission in military C3I systems.
How should the exposed pad (EPAD) of the HMC521ALC4TR be connected on the PCB?
The exposed pad of the HMC521ALC4TR must be soldered directly to a solid PCB ground plane to ensure thermal dissipation (θJA = 120°C/W) and RF grounding. It is electrically connected to the internal GND nodes and must not be left floating or thermally isolated. The HMC521ALC4TR's reliability and conversion loss stability depend on proper EPAD soldering per JEDEC J-STD-020 moisture sensitivity Level 3 guidelines.
Does the HMC521ALC4TR support dc-coupled IF operation, and what are the current limits?
Yes, both IF1 and IF2 ports of the HMC521ALC4TR are dc-coupled and support operation from dc to 3.5 GHz. However, each IF port must not source or sink more than ±2 mA of current to prevent die malfunction. Exceeding this limit risks permanent damage. The HMC521ALC4TR's dc-coupled IF architecture enables zero-IF receiver designs without external blocking capacitors.
What is the absolute maximum RF input power rating for the HMC521ALC4TR?
The absolute maximum RF input power for the HMC521ALC4TR is 20 dBm, as specified in the Absolute Maximum Ratings table. Continuous operation above this level may cause irreversible damage to the GaAs MESFET mixer cells. For reliable long-term operation, RF input should be limited to ≤15 dBm-within the linear region where the HMC521ALC4TR achieves its specified IP3 and P1dB performance.
HMC521ALC4TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-CLCC Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- RF Type:
- Radar
- Frequency:
- 8.5GHz ~ 13.5GHz
- Number of Mixers:
- 2
- Gain:
- -
- Noise Figure:
- -
- Secondary Attributes:
- -
- Current - Supply:
- -
- Voltage - Supply:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-CLCC (3.9x3.9)
HMC521ALC4TR FAQ
1.How can I place an order for HMC521ALC4TR through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC521ALC4TR 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 HMC521ALC4TR reliable?
The price and inventory of HMC521ALC4TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC521ALC4TR is usually 5 days.
3.What payment methods are accepted for HMC521ALC4TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC521ALC4TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC521ALC4TR?
HMC521ALC4TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC521ALC4TR 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 HMC521ALC4TR?
For technical support, including HMC521ALC4TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC521ALC4TR requirements.
6.How does Aetrix verify that HMC521ALC4TR is sourced from the original manufacturer or authorized distributors?
All HMC521ALC4TR 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 HMC521ALC4TR meets industry standards.
7.What is the process for return or replacement of HMC521ALC4TR?
All HMC521ALC4TR units undergo pre-shipment inspection (PSI). If there is an issue with HMC521ALC4TR, 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 HMC521ALC4TR part is unused and in its original packaging.
Return procedure for HMC521ALC4TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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