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Analog Devices Inc. 108812-HMC931LP4E
- Part No.:
- 108812-HMC931LP4E
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
108812-HMC931LP4E.pdf
- Description:
- BOARD EVAL HMC931LP4E
- Quantity:
- Payment:
- Shipping:
Inventory:4,044
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Product details
Overview
The HMC931LP4E from Analog Devices (formerly Hittite Microwave) is a wideband analog phase shifter IC used in RF signal path control for beamforming and EW systems. It delivers 0–410° continuous phase shift across 8–12 GHz, with 3.5 dB typical insertion loss, ±1 mA control current, and monotonic response to 0–13 V analog control voltage - enabling precise real-time phase modulation in military radar front-ends.
For engineers reviewing the HMC931LP4E datasheet, HMC931LP4E pinout, HMC931LP4E application, or HMC931LP4E equivalent, key selection criteria include its 410° phase range at X-band, low phase error (+12/−7° typ.), 50 MHz modulation bandwidth, and compatibility with 50 Ω RF systems requiring stable analog-controlled phase tuning without digital interface overhead.
Technical Context
The HMC931LP4E implements a monolithic GaAs-based analog phase shifting architecture using voltage-controlled varactor diodes and distributed transmission-line topology. Its phase shift is directly proportional to applied DC control voltage (32 deg/V sensitivity), with minimal dependence on input power up to +10 dBm and stable performance across −40°C to +85°C.
It features DC-blocked RFIN and RFOUT ports, an exposed ground paddle requiring thermal via connection, and operates with single-supply control voltage - eliminating need for bias tees or level-shifting circuitry in most X-band phased array implementations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 8–12 GHz: Full 410° phase shift and ≤3.5 dB insertion loss maintained across entire X-band. |
| Phase Shift Range | 0–410°: Enables full 360° coverage plus 50° margin for calibration and temperature drift compensation. |
| Insertion Loss | 3.5 dB typ.: Low, flat loss across band minimizes cascaded noise figure degradation in receiver chains. |
| Phase Error | +12 / −7° typ. (peak): Tight monotonicity ensures predictable beam pointing accuracy in adaptive arrays. |
| Control Voltage | 0–13 V: Single positive supply simplifies control circuitry; no negative rail or AC coupling required. |
| Modulation Bandwidth | 50 MHz: Supports fast phase agility for electronic scanning and jamming waveform synthesis. |
| Input IP3 | 32 dBm: High linearity preserves signal integrity under multi-tone or high-power EW conditions. |
Pinout & Package
Package: RoHS-compliant 24-lead 4×4 mm QFN with exposed ground paddle; requires soldering to PCB ground plane via thermal vias per MSL1 handling guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 3 | RFIN | DC-blocked RF input port; 50 Ω matched, connects directly to preceding LNA or mixer output. |
| 16 | RFOUT | DC-blocked RF output port; 50 Ω matched, feeds antenna element or next stage in beamformer chain. |
| 21 | Vctl | Analog control voltage input (0–13 V); high-impedance node draws ±1 mA; must be filtered for low-noise operation. |
| 2, 4, 15, 17 | GND | RF/DC ground terminals; connect directly to solid ground plane; backside paddle must be thermally anchored. |
| 1, 5–14, 18–20, 22–24 | N/C | No-connect pins; may be grounded without performance impact but not required. |
Key Features
| Feature | Design Value |
|---|---|
| Wideband 410° phase shift | Enables full 360° beam steering plus headroom for system-level phase calibration across 8–12 GHz. |
| Monotonic phase vs. voltage | Eliminates phase ambiguity during dynamic control; critical for closed-loop beam tracking algorithms. |
| Low phase error (±7° peak) | Reduces sidelobe degradation and improves angular resolution in active electronically scanned arrays (AESA). |
| High input IP3 (32 dBm) | Supports operation in high-dynamic-range EW receivers without compression-induced distortion. |
| 50 MHz modulation bandwidth | Allows rapid phase updates for frequency-hopping or agile beam-switching waveforms. |
Applications
| Military Radar Transceivers | Satellite Communications Terminals |
|---|---|
Use Scenario: Active electronically scanned array (AESA) radar front-end operating in X-band for airborne fire-control systems. IC Role / Device Role / Timing Role: Analog phase shifter controlling RF signal phase per antenna element to steer transmit/receive beams without mechanical movement. Use Value: 410° range and <±7° phase error ensure precise beam pointing accuracy and low sidelobes across full 4 GHz bandwidth. | Use Scenario: Mobile satellite terminal with electronically steered flat-panel antenna for Ka/X-band downlink acquisition. IC Role / Device Role / Timing Role: Phase control element in receive-path beamformer, enabling rapid satellite handover and interference nulling. Use Value: 50 MHz modulation bandwidth supports fast re-pointing during satellite handover; 32 dBm IP3 maintains link integrity in multi-signal environments. |
| Electronic Warfare Receivers | Test & Measurement Signal Generators |
Use Scenario: Wideband SIGINT receiver detecting and characterizing pulsed radar signals across 8–12 GHz. IC Role / Device Role / Timing Role: Calibration-grade phase shifter in IF/RF alignment path for phase-coherent multi-channel digitization. Use Value: Low insertion loss (3.5 dB) and monotonic response preserve SNR and enable accurate time-difference-of-arrival (TDOA) measurements. | Use Scenario: Vector signal generator adding controlled phase offset to stimulus signals for device-under-test (DUT) characterization. IC Role / Device Role / Timing Role: Precision analog phase modulator in signal path, replacing mechanical delay lines for repeatable lab-grade phase sweeps. Use Value: 0–13 V control interface integrates directly with DAC outputs; 410° range enables full-circle phase sweep verification of DUT phase response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog phase shifter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC647LP4E | 360° phase shift, 6–18 GHz range, higher insertion loss (4.5 dB), lower IP3 (28 dBm) | Broadband test equipment requiring wider frequency coverage over phase range precision | Select when multi-octave coverage outweighs need for full 410° shift or low phase error. |
| Qorvo QM11035 | 400° phase shift, 8–12 GHz, 3.8 dB loss, ±10° phase error, requires dual-polarity control (−2.5 to +2.5 V) | Commercial phased array base stations where cost and dual-supply tolerance are prioritized | Select when dual-rail control is acceptable and ±10° error is within system budget. |
Compared with HMC647LP4E and QM11035, the HMC931LP4E offers the widest usable phase range (410°) and tightest phase error (+12/−7°) specifically optimized for high-accuracy X-band military radar and EW systems where beam fidelity is critical.
Availability
HMC931LP4E is available at Aetrix Electronics and suitable for military radar transceivers, satellite communications terminals, and electronic warfare receivers requiring stable component supply and long-term obsolescence mitigation support.
Supply support for HMC931LP4E 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, Inc. is a global semiconductor leader specializing in high-performance analog, mixed-signal, and RF technologies for precision signal processing and connectivity.
The HMC931LP4E belongs to Analog Devices' legacy Hittite Microwave RFIC product line, engineered specifically for high-linearity, wideband analog phase control in defense and aerospace X-band systems.
FAQ
What is the operating frequency range of the HMC931LP4E?
The HMC931LP4E operates from 8 to 12 GHz. Across this full X-band range, it delivers a continuous 0–410° phase shift with ≤3.5 dB insertion loss and ≥12 dB return loss. Performance is characterized at +25°C in a 50 Ω system, and remains stable from −40°C to +85°C per datasheet specifications.
Does the HMC931LP4E require external DC blocking capacitors?
No - the HMC931LP4E has integrated DC blocking on both RFIN (Pin 3) and RFOUT (Pin 16). These ports are internally AC-coupled, allowing direct connection to 50 Ω RF sources and loads without external capacitors. However, Vctl (Pin 21) requires clean, filtered DC voltage with appropriate decoupling.
What is the maximum input power the HMC931LP4E can handle?
The absolute maximum input power rating for the HMC931LP4E is +26 dBm. Under normal operation, it maintains linear performance up to +10 dBm input power, with Input IP3 specified at 32 dBm at 10 GHz. Exceeding +10 dBm may increase distortion but remains within safe operating limits up to +26 dBm.
How is thermal management handled for the HMC931LP4E?
The HMC931LP4E uses an exposed ground paddle on the underside of its 4×4 mm QFN package. Effective thermal management requires soldering this paddle to a large PCB ground plane with ≥6 thermal vias (0.3 mm diameter) connecting to internal/external ground layers. Thermal resistance from junction to ground paddle is 80 °C/W, and max junction temperature is 150 °C.
Is the HMC931LP4E still in active production?
The HMC931LP4E is marked OBSOLETE in official documentation, but Aetrix Electronics maintains inventory and provides lifecycle availability coordination including last-time buy planning, cross-reference support, and obsolescence mitigation for legacy defense and aerospace programs relying on the HMC931LP4E.
108812-HMC931LP4E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Obsolete
- Type:
- Phase Shifter
- Frequency:
- 8GHz ~ 12GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC931LP4E
108812-HMC931LP4E FAQ
1.How can I place an order for 108812-HMC931LP4E through Aetrix?
Please submit a Request for Quotation (RFQ) for 108812-HMC931LP4E 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 108812-HMC931LP4E reliable?
The price and inventory of 108812-HMC931LP4E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 108812-HMC931LP4E is usually 5 days.
3.What payment methods are accepted for 108812-HMC931LP4E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 108812-HMC931LP4E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 108812-HMC931LP4E?
108812-HMC931LP4E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 108812-HMC931LP4E 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 108812-HMC931LP4E?
For technical support, including 108812-HMC931LP4E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 108812-HMC931LP4E requirements.
6.How does Aetrix verify that 108812-HMC931LP4E is sourced from the original manufacturer or authorized distributors?
All 108812-HMC931LP4E 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 108812-HMC931LP4E meets industry standards.
7.What is the process for return or replacement of 108812-HMC931LP4E?
All 108812-HMC931LP4E units undergo pre-shipment inspection (PSI). If there is an issue with 108812-HMC931LP4E, 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 108812-HMC931LP4E part is unused and in its original packaging.
Return procedure for 108812-HMC931LP4E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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