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Analog Devices Inc. HMC129ALC4TR
- Part No.:
- HMC129ALC4TR
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Mixers
- Package:
- 24-CLCC Exposed Pad
- Datasheet:
-
HMC129ALC4TR.pdf
- Description:
- IC MMIC MIXER DBL-BAL 24SMD
- Quantity:
- Payment:
- Shipping:
Inventory:2,657
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Product details
Overview
HMC129ALC4TR from Analog Devices is a GaAs MMIC double-balanced mixer operating from 4 GHz to 8 GHz RF, with 7 dB typical conversion loss, 40 dB LO-to-RF isolation, and +17 dBm input IP3 - used as upconverter/downconverter in microwave VSAT radios and EW systems.
For engineers reviewing the HMC129ALC4TR datasheet, HMC129ALC4TR pinout, HMC129ALC4TR application, or HMC129ALC4TR equivalent, this page delivers verified RF mixer specifications, terminal mapping, real-world use cases, and validated alternatives for microwave signal chain design.
Technical Context
The HMC129ALC4TR is a passive, double-balanced mixer requiring no DC bias, supporting both upconversion (IF dc–3 GHz → RF 4–8 GHz) and downconversion (RF 4–8 GHz → IF dc–3 GHz) with LO drive from 9 dBm to 18 dBm. Its balanced topology suppresses even-order harmonics and LO leakage.
It features internal 50 Ω matching on LO and RF ports, dc-coupled IF port (±6 mA max current), and 24-terminal ceramic LCC packaging with exposed thermal pad. Performance remains stable across −40°C to +85°C with no external components required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 4 GHz to 8 GHz - supports full-band operation in X-band microwave links without tuning. |
| IF Frequency Range | DC to 3 GHz - enables baseband-to-S-band IF interfaces including zero-IF architectures. |
| Conversion Loss | 7 dB typ - low insertion loss preserves system noise figure and dynamic range in receiver front-ends. |
| Input IP3 | +17 dBm typ - high linearity supports multi-carrier and wideband modulation in ECM/C3I systems. |
| LO-to-RF Isolation | 40 dB min - reduces LO radiation into antenna paths, easing filtering requirements in transceivers. |
| Operating Temp | −40°C to +85°C - qualified for deployment in military airborne, ground, and shipboard EW platforms. |
| Package | 24-terminal 4 mm × 4 mm LCC (E-24-1) - surface-mount compatible with standard reflow profiles (260°C peak). |
Pinout & Package
Package: 24-terminal ceramic leadless chip carrier (LCC), 4 mm × 4 mm footprint, exposed thermal pad (EPAD) requiring RF/dc ground connection per datasheet layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 6, 7, 11–14, 18–24 | NIC | Not internally connected - may be tied to ground for mechanical stability or EMI control without affecting RF performance. |
| 2, 4, 8, 10, 15, 17 | GND | RF/dc ground reference - must connect directly to PCB ground plane; critical for isolation and thermal dissipation. |
| 3 | RF | Radio frequency port - ac-coupled, 50 Ω matched; primary signal path for incoming/outgoing microwave signals. |
| 9 | IF | Intermediate frequency port - dc-coupled; supports baseband operation but limited to ±6 mA source/sink current. |
| 16 | LO | Local oscillator port - dc-coupled, 50 Ω matched; accepts 9–18 dBm LO drive with minimal harmonic generation. |
| EPAD | Thermal/Ground | Exposed pad - mandatory connection to RF/dc ground for thermal management and optimal RF return path. |
Key Features
| Feature | Design Value |
|---|---|
| No DC bias required | Enables true passive operation - eliminates bias network complexity, leakage, and power supply noise coupling. |
| Double-balanced architecture | Suppresses LO–RF feedthrough and even-order spurs - simplifies post-mixer filtering in sensitive ECM receivers. |
| RoHS-compliant LCC package | Leadless 4 mm × 4 mm ceramic housing with exposed pad - supports automated SMT assembly and high-frequency thermal reliability. |
| Wide LO drive range (9–18 dBm) | Accommodates diverse LO sources (VCOs, synthesizers, amplifiers) without external level setting - improves design flexibility. |
| Consistent performance over temperature | Conversion loss and IP3 vary <±0.5 dB and <±0.3 dBm across −40°C to +85°C - ensures stable link budget in fielded systems. |
Applications
| Microwave VSAT Radios | Electronic Warfare Receivers |
|---|---|
Use Scenario: Full-duplex satellite terminal operating in 5.8–6.4 GHz uplink / 3.7–4.2 GHz downlink bands with compact form factor. IC Role / Device Role / Timing Role: Downconverter for receive path and upconverter for transmit path - enabling shared LO and dual-band operation. Use Value: 7 dB conversion loss and 40 dB LO–RF isolation reduce cascaded noise figure and simplify front-end filtering, extending link margin by >3 dB. |
Use Scenario: Wideband SIGINT receiver scanning 4–8 GHz with real-time spectrum analysis and threat identification. IC Role / Device Role / Timing Role: First-stage image-reject mixer in superheterodyne architecture - translating RF to 1–2 GHz IF for ADC sampling. Use Value: +17 dBm IIP3 and >50 dBc spur suppression maintain dynamic range across multi-tone jamming environments without desensitization. |
| Test Equipment Signal Generators | Military C3I Transceivers |
Use Scenario: Benchtop microwave signal generator covering 4–8 GHz with programmable modulation and low phase noise. IC Role / Device Role / Timing Role: Upconverter stage modulating baseband IQ waveforms onto RF carriers - supporting QPSK, 16-QAM, and OFDM. Use Value: Flat conversion gain (±0.8 dB) and stable IP3 across band ensure amplitude accuracy and EVM compliance per IEEE 802.11ay/5G FR2 test standards. |
Use Scenario: Tactical manpack radio supporting secure voice/data over 4.4–5.0 GHz LOS and SATCOM bands. IC Role / Device Role / Timing Role: Dual-mode mixer in TDD/FDD reconfigurable transceiver - switching between up/down conversion via LO routing. Use Value: No dc bias and consistent performance across temperature allow uncooled operation in ruggedized enclosures with minimal calibration overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar double-balanced mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC774ALC3TR | Wider RF range (2–18 GHz), higher conversion loss (8.5 dB), smaller 3 mm × 3 mm LCC package. | Better suited for multi-band test equipment; less optimal for narrowband VSAT where HMC129ALC4TR's lower loss improves sensitivity. | Select HMC774ALC3TR when broad frequency coverage outweighs 1.5 dB noise figure penalty. |
| QPC1008 | GaAs pHEMT-based, 5–12 GHz range, 8.2 dB conversion loss, requires +5 V bias for active balun; 4 mm × 4 mm QFN. | Higher power handling (LO up to 20 dBm) but adds bias complexity and thermal management burden vs. passive HMC129ALC4TR. | Choose QPC1008 only if higher LO drive tolerance is mandatory and bias infrastructure exists. |
Compared with HMC774ALC3TR and QPC1008, the HMC129ALC4TR offers the lowest conversion loss and zero-bias simplicity in its native 4–8 GHz band - making it optimal for size- and power-constrained EW and VSAT modules where RF efficiency and manufacturability are prioritized.
Availability
HMC129ALC4TR is available at Aetrix Electronics and suitable for microwave VSAT radios, electronic warfare receivers, and military C3I transceivers requiring stable component supply, RoHS compliance, and long-term obsolescence mitigation.
Supply support for HMC129ALC4TR 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 precision instrumentation, communications, and defense markets since 1965.
The HMC129ALC4TR belongs to the Hittite Microwave (acquired by Analog Devices) GaAs MMIC mixer product line - engineered specifically for broadband, high-isolation, zero-bias operation in defense and test equipment signal chains.
FAQ
What is the recommended LO drive level for optimal performance of the HMC129ALC4TR?
The HMC129ALC4TR achieves best conversion loss (7 dB typ), IP3 (+17 dBm), and isolation with LO drive between 13 dBm and 15 dBm. Operation remains functional from 9 dBm to 18 dBm, but below 13 dBm increases conversion loss by ~0.5 dB, and above 15 dBm yields diminishing IP3 returns while raising thermal stress. The HMC129ALC4TR datasheet specifies 15 dBm as the nominal test condition for all key RF parameters.
Does the HMC129ALC4TR require external biasing or passive components for basic operation?
No, the HMC129ALC4TR is a fully passive double-balanced mixer and requires no DC bias voltage or current. It operates with only RF, LO, and IF connections. External components are optional: a series capacitor on the IF port is recommended only when dc blocking is needed, and no baluns, transformers, or matching networks are required due to internal 50 Ω matching on LO and RF ports.
Can the HMC129ALC4TR be used for zero-IF (direct-conversion) receiver applications?
Yes, the HMC129ALC4TR supports zero-IF operation because its IF port is dc-coupled and rated for dc to 3 GHz. However, the IF source/sink current must not exceed ±6 mA to prevent die malfunction. For true zero-IF designs, ensure baseband circuitry complies with this current limit and uses appropriate dc restoration or offset cancellation techniques.
What is the thermal resistance (θJA) of the HMC129ALC4TR, and how does it impact PCB layout?
The HMC129ALC4TR has a θJA of 120°C/W under JEDEC JESD51-2 natural convection conditions. Effective thermal management requires direct connection of the exposed pad (EPAD) and all GND terminals to a low-impedance, multi-layer PCB ground plane using ≥8 thermal vias. Poor grounding raises junction temperature, degrading IP3 and accelerating long-term drift - especially critical in +85°C military deployments.
How does the HMC129ALC4TR handle spurious outputs in a dense RF environment?
The HMC129ALC4TR exhibits strong spurious suppression: key downconverter spurs (e.g., 2×RF − 1×LO) measure >65 dBc, and upconverter spurs (e.g., 1×IF + 2×LO) are >60 dBc under typical conditions. Its double-balanced topology inherently cancels even-order products, and 40 dB LO–RF isolation minimizes LO reradiation - collectively reducing out-of-band interference in multi-channel EW and SATCOM systems.
HMC129ALC4TR 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:
- VSAT
- Frequency:
- 4GHz ~ 8GHz
- Number of Mixers:
- 1
- Gain:
- -
- Noise Figure:
- 7dB
- Secondary Attributes:
- -
- Current - Supply:
- -
- Voltage - Supply:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-CLCC (3.9x3.9)
HMC129ALC4TR FAQ
1.How can I place an order for HMC129ALC4TR through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC129ALC4TR 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 HMC129ALC4TR reliable?
The price and inventory of HMC129ALC4TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC129ALC4TR is usually 5 days.
3.What payment methods are accepted for HMC129ALC4TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC129ALC4TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC129ALC4TR?
HMC129ALC4TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC129ALC4TR 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 HMC129ALC4TR?
For technical support, including HMC129ALC4TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC129ALC4TR requirements.
6.How does Aetrix verify that HMC129ALC4TR is sourced from the original manufacturer or authorized distributors?
All HMC129ALC4TR 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 HMC129ALC4TR meets industry standards.
7.What is the process for return or replacement of HMC129ALC4TR?
All HMC129ALC4TR units undergo pre-shipment inspection (PSI). If there is an issue with HMC129ALC4TR, 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 HMC129ALC4TR part is unused and in its original packaging.
Return procedure for HMC129ALC4TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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