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Analog Devices Inc. HMC129-SX
- Part No.:
- HMC129-SX
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Mixers
- Package:
- Die
- Datasheet:
-
HMC129-SX.pdf
- Description:
- IC MMIC MIXER DBL-BAL DIE
- Quantity:
- Payment:
- Shipping:
Inventory:3,220
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Product details
Overview
HMC129-SX from Analog Devices is a GaAs MMIC double-balanced mixer die operating from 4 to 8 GHz RF/LO and DC–3 GHz IF, delivering 7 dB typical conversion loss, 40 dB LO-to-RF isolation, and +17 dBm input IP3 at +15 dBm LO drive - ideal for compact hybrid MIC upconverter/downconverter designs in microwave radios and EW systems.
For engineers reviewing the HMC129-SX datasheet, HMC129-SX pinout, HMC129-SX application, or HMC129-SX equivalent, this page provides verified RF performance data, terminal-level interface guidance, die-mounting constraints, and validated alternatives for high-frequency mixer selection in space-constrained, bias-free RF front-ends.
Technical Context
The HMC129-SX is a passive, DC-coupled double-balanced mixer with no internal bias circuitry, requiring only +9 to +15 dBm LO drive for optimal operation. Its monolithic GaAs construction enables direct integration into hybrid MICs without external baluns or DC blocking networks.
It functions bidirectionally as an upconverter or downconverter, supports bi-phase modulation/demodulation, and maintains stable SSB noise figure (7–9 dB) and input-referred compression (P1dB = 6–10 dBm) across –55°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF/LO Frequency Range | 4–8 GHz - defines usable band for signal translation in X-band microwave links and radar front-ends. |
| IF Bandwidth | DC–3 GHz - supports baseband through L-band IF outputs without external DC blocking on IF port. |
| Conversion Loss | 7 dB typ. - sets minimum gain budget penalty when used as downconverter in receiver chains. |
| LO–RF Isolation | 40 dB typ. - limits LO leakage into antenna path, reducing spurious radiation and receiver desensitization. |
| Input IP3 | +17 dBm typ. - determines third-order intermodulation dynamic range in multi-carrier or dense-spectrum environments. |
| Die Size | 1.40 × 1.40 × 0.1 mm - enables ultra-compact placement in MMIC hybrids and phased-array T/R modules. |
| LO Drive Range | +9 to +15 dBm - allows flexible LO source selection without external amplification or attenuation. |
| Operating Temp | –55°C to +85°C - qualifies for military, aerospace, and outdoor telecom infrastructure deployment. |
Pinout & Package
Package: Bare die in Waffle Pack (WP-3), gold-metallized backside ground plane, 1.40 × 1.40 × 0.1 mm, 4-pad configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RF) | Radio Frequency Input/Output | DC-coupled 50 Ω matched port; accepts RF signal for downconversion or delivers upconverted RF; no external balun needed. |
| 2 (LO) | Local Oscillator Input | DC-coupled 50 Ω matched port; requires +9 to +15 dBm drive; excessive drive (>+27 dBm) risks permanent damage. |
| 3 (IF) | Intermediate Frequency Output/Input | DC-coupled; must not sink/source >2 mA; for DC-coupled IF use, ensure current compliance; otherwise add series capacitor. |
| GND | Ground Reference | Backside metallization serves as primary RF ground; must be soldered or epoxy-mounted to low-inductance ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| No DC bias required | Eliminates bias network design, reduces component count, and avoids DC feedthrough interference in sensitive RF paths. |
| Passive double-balanced architecture | Provides inherent LO–RF and LO–IF isolation, suppresses even-order harmonics, and enables clean bi-phase modulation. |
| DC-coupled IF port | Supports zero-IF and complex I/Q architectures without external AC coupling, simplifying direct-conversion receiver layout. |
| Gold bond pad metallization | Enables reliable thermosonic or wedge wire bonding with 1-mil Au wire under controlled force and temperature profiles. |
| Backside ground plane | Reduces parasitic inductance, improves thermal dissipation, and ensures repeatable RF grounding in hybrid MIC assembly. |
Applications
| Microwave VSAT Radios | Electronic Warfare Receivers |
|---|---|
Use Scenario: Downconverting 6.5 GHz satellite uplink signals to 70 MHz IF in outdoor VSAT terminals with size and power constraints. IC Role / Device Role / Timing Role: Passive double-balanced mixer performing RF-to-IF translation with minimal added noise and LO leakage. Use Value: 7 dB conversion loss and 40 dB LO–RF isolation preserve receiver sensitivity and prevent transmit-band desense in full-duplex operation. | Use Scenario: Wideband signal interception across 4–8 GHz in airborne EW pods requiring rapid frequency agility and low spurious generation. IC Role / Device Role / Timing Role: Core downconversion element in channelized receiver front-end, supporting real-time spectrum analysis. Use Value: +17 dBm input IP3 and DC–3 GHz IF bandwidth enable high-dynamic-range capture of dense emitter environments without saturation. |
| Space Telecom Transponders | Test & Measurement Signal Sources |
Use Scenario: Upconverting L-band telemetry data to X-band for downlink in small-satellite transponders where mass and volume are critical. IC Role / Device Role / Timing Role: Bias-free upconverter integrated directly into thin-film hybrid MIC with minimal footprint. Use Value: 1.40 × 1.40 mm die size and no external baluns reduce module area by >30% versus discrete transformer-based mixers. | Use Scenario: Generating calibrated two-tone test signals in 4–8 GHz vector signal analyzers for amplifier linearity validation. IC Role / Device Role / Timing Role: Precision passive mixer used in stimulus path to produce clean, phase-stable RF outputs. Use Value: Consistent 7 dB conversion loss and <1 dB variation over temperature simplify system-level calibration traceability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar double-balanced mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC136-SX | Same die family; wider RF/LO range (2–12 GHz); higher conversion loss (8.5 dB typ.) | Better suited for multi-band lab equipment; less optimal for narrowband 4–8 GHz VSAT due to higher loss | Select HMC129-SX for optimized 4–8 GHz performance and lower conversion loss; choose HMC136-SX only if broader frequency coverage is mandatory. |
| QPC1006 | GaAs pHEMT-based; 5–10 GHz range; requires +13 dBm LO; 6.5 dB conversion loss; 36 dB LO–RF isolation | Higher integration level (integrated LO buffer); larger die (2.0 × 1.5 mm); needs DC bias | HMC129-SX offers superior LO–RF isolation and zero-bias operation; QPC1006 trades isolation for built-in LO gain and wider bandwidth. |
Compared with HMC136-SX and QPC1006, the HMC129-SX delivers the lowest conversion loss and highest LO–RF isolation within its native 4–8 GHz band, while uniquely eliminating DC bias requirements - making it the preferred choice for size- and power-sensitive hybrid MIC implementations where LO drive is available.
Availability
HMC129-SX is available at Aetrix Electronics and suitable for microwave VSAT radios, electronic warfare receivers, and space telecom transponders requiring stable component supply, consistent RF performance, and long-term bare-die availability.
Supply support for HMC129-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 is a global semiconductor leader specializing in high-performance analog, mixed-signal, and RF technologies for precision signal processing and connectivity.
The HMC129-SX belongs to the Hittite Microwave (acquired by Analog Devices) GaAs MMIC mixer product line, engineered for bias-free, high-isolation RF mixing in defense, aerospace, and instrumentation applications.
FAQ
What is the recommended LO drive level for optimal performance of the HMC129-SX?
The HMC129-SX achieves best conversion loss, isolation, and linearity at +15 dBm LO drive, with functional operation supported from +9 to +15 dBm. Driving above +15 dBm yields diminishing returns; exceeding +27 dBm absolute maximum risks irreversible damage. For the HMC129-SX, maintain LO drive within this validated window to ensure repeatable RF performance in production assemblies.
Does the HMC129-SX require DC biasing or external baluns?
No - the HMC129-SX is a fully passive, double-balanced GaAs MMIC mixer that operates without any DC bias voltage or current. It also eliminates the need for external baluns due to its integrated balanced topology and 50 Ω DC-coupled ports. This feature simplifies hybrid MIC integration and reduces bill-of-materials cost. The HMC129-SX is designed specifically for zero-bias, balun-free operation.
Can the HMC129-SX be used for both upconversion and downconversion?
Yes - the HMC129-SX is bidirectional and functions equally well as an upconverter or downconverter across its 4–8 GHz RF/LO band. Its symmetric double-balanced architecture ensures consistent conversion loss, isolation, and linearity regardless of signal flow direction. When using the HMC129-SX in either mode, ensure proper port termination and LO drive level (+9 to +15 dBm) to maintain specified performance.
What are the mounting and wire bonding requirements for the HMC129-SX die?
The HMC129-SX die features gold backside metallization for grounding and gold bond pads for interconnection. Mounting requires eutectic (AuSn) or conductive epoxy attachment to a flat, clean ground plane. Wire bonding uses 1-mil Au wire with thermosonic ball bonding (150°C stage, 40–50 g force) or wedge bonding (18–22 g). All bonds must be ≤12 mils long. The HMC129-SX demands strict ESD handling and nitrogen storage post-opening.
How does the IF port of the HMC129-SX handle DC coupling, and what current limits apply?
Port 3 (IF) of the HMC129-SX is DC-coupled and may operate from DC to 3 GHz. However, it must not source or sink more than ±2 mA - exceeding this causes non-function or die failure. For DC-coupled use, ensure external circuitry complies with this limit; for AC-coupled IF, insert a series capacitor sized for the target IF bandwidth. This constraint is intrinsic to the HMC129-SX's passive diode-ring architecture.
HMC129-SX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- Die
- Packaging:
- Bulk
- Product Status:
- Obsolete
- RF Type:
- General Purpose
- Frequency:
- 4GHz ~ 8GHz
- Number of Mixers:
- 1
- Gain:
- -
- Noise Figure:
- 7dB
- Secondary Attributes:
- Up/Down Converter
- Current - Supply:
- -
- Voltage - Supply:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Die
HMC129-SX FAQ
1.How can I place an order for HMC129-SX through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC129-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 HMC129-SX reliable?
The price and inventory of HMC129-SX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC129-SX is usually 5 days.
3.What payment methods are accepted for HMC129-SX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC129-SX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC129-SX?
HMC129-SX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC129-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 HMC129-SX?
For technical support, including HMC129-SX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC129-SX requirements.
6.How does Aetrix verify that HMC129-SX is sourced from the original manufacturer or authorized distributors?
All HMC129-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 HMC129-SX meets industry standards.
7.What is the process for return or replacement of HMC129-SX?
All HMC129-SX units undergo pre-shipment inspection (PSI). If there is an issue with HMC129-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 HMC129-SX part is unused and in its original packaging.
Return procedure for HMC129-SX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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