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Analog Devices Inc. 110227-HMC632LP5
- Part No.:
- 110227-HMC632LP5
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
110227-HMC632LP5.pdf
- Description:
- BOARD EVAL HMC632LP5E
- Quantity:
- Payment:
- Shipping:
Inventory:1,430
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Product details
Overview
The HMC632LP5 from Hittite Microwave Corporation (now part of Analog Devices) is a GaAs InGaP HBT MMIC voltage-controlled oscillator with integrated divide-by-4 and half-frequency outputs, operating from 14.25–15.65 GHz at RFOUT, delivering +9 dBm output power, −107 dBc/Hz phase noise at 100 kHz offset, and housed in a 32-lead 5×5 mm QFN package. It serves as a compact, self-contained RF source for microwave transceivers requiring dual-band local oscillation.
For engineers reviewing the HMC632LP5 datasheet, HMC632LP5 pinout, HMC632LP5 application, or HMC632LP5 equivalent, key selection criteria include its dual-output frequency coverage (Fo and Fo/2), low phase noise performance across temperature, supply current scalability via disableable prescaler/RFOUT/2 rails, and leadless SMT packaging requiring no external resonator or matching components.
Technical Context
The HMC632LP5 integrates monolithic resonators, varactor diodes, and negative resistance devices on a single GaAs die to achieve stable VCO operation without external tuning elements. Its architecture supports simultaneous RFOUT (Fo), RFOUT/2 (Fo/2), and RFOUT/4 (Fo/4) outputs with independent supply pins (Vcc(RF), Vcc(Amp), Vcc(Dig)) enabling selective power-down of unused functions.
Phase noise is optimized through monolithic construction, yielding −107 dBc/Hz typical at 100 kHz offset under +5 V bias and +25°C ambient. Tuning sensitivity ranges from ~35 MHz/V near mid-range to lower values at extremes, with pulling <10 MHz peak-to-peak into 2.0:1 VSWR and pushing ≤35 MHz/V at Vtune = 5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Fo Range | 14.25–15.65 GHz - full RF output band usable for X/Ku-band LO generation without external multiplication. |
| Fo/2 Range | 7.125–7.825 GHz - direct half-frequency output eliminates need for external divider in dual-band systems. |
| Output Power (RFOUT) | +9 dBm typical - sufficient drive level to directly interface with mixer LO ports or buffer amplifiers. |
| Phase Noise @ 100 kHz | −107 dBc/Hz typical - meets stringent spectral purity requirements for high-order modulation schemes. |
| Tuning Voltage Range | 2–13 V - wide analog control range enables flexible loop filter design and modulation bandwidth tailoring. |
| Supply Current (Total) | 350 mA typical @ +5 V - scalable via disabling Vcc(Dig) (−65 mA) or Vcc(Amp) (−30 mA) when prescaler or Fo/2 not needed. |
| Package | 32-lead 5×5 mm QFN - surface-mount footprint with exposed paddle for thermal and RF grounding per RF PCB best practices. |
Pinout & Package
The HMC632LP5 is packaged in a 32-lead, 5×5 mm leadless QFN with an exposed ground paddle. The package is RoHS-compliant (HMC632LP5E variant uses 100% matte Sn; standard HMC632LP5 uses Sn/Pb), MSL3 rated, and requires soldering of all ground leads and the paddle to PCB RF ground per Hittite's land pattern recommendation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–3, 8–10, 13–18, 20, 22–28, 30–32 | No Connection | Internally unconnected; may be tied to RF/DC ground without affecting performance. |
| 4 | RFOUT/4 | AC-coupled divide-by-4 output (3.56–3.91 GHz); requires external DC blocking capacitor. |
| 6 | Vcc(Dig) | +5 V supply for prescaler; open to disable prescaler and save ~65 mA quiescent current. |
| 7 | Vcc(Amp) | +5 V supply for RFOUT/2 amplifier stage; open to disable Fo/2 output and save ~30 mA. |
| 12 | RFOUT/2 | AC-coupled half-frequency output (7.125–7.825 GHz); requires external DC blocking capacitor. |
| 19 | RF OUT | AC-coupled fundamental RF output (14.25–15.65 GHz); primary LO path for mixers or synthesizers. |
| 21 | Vcc(RF) | +5 V supply for RFOUT amplifier stage; must be powered for fundamental output operation. |
| 29 | VTUNE | Analog tuning and FM modulation input; impedance-dependent bandwidth; referenced to ground. |
| 5, 11, Paddle | GND | RF/DC ground reference; exposed paddle must be soldered to solid ground plane for thermal and signal integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent outputs (Fo, Fo/2) | Enables single-device local oscillator generation for both RF and IF stages in heterodyne receivers without external dividers. |
| Integrated divide-by-4 output (Fo/4) | Provides third frequency option (3.56–3.91 GHz) for auxiliary clocking or monitoring without adding discrete logic. |
| Selectively disableable supply rails | Vcc(Dig) and Vcc(Amp) pins allow dynamic current reduction-up to 95 mA total-when prescaler or Fo/2 not required. |
| Monolithic GaAs InGaP HBT structure | Delivers stable phase noise over −40°C to +85°C and immunity to mechanical shock due to absence of discrete resonators. |
| No external matching or resonator needed | Reduces BOM count, layout area, and tuning complexity-fully functional with only DC decoupling and AC coupling capacitors. |
Applications
| Point-to-Point Radio | SATCOM Terminals |
|---|---|
|
Use Scenario: High-capacity licensed microwave backhaul links operating in 13–17 GHz bands requiring low-phase-noise LOs for QAM-256 modulation. IC Role / Device Role / Timing Role: Primary VCO providing Fo (14.25–15.65 GHz) to upconverter LO port and Fo/2 (7.125–7.825 GHz) to downconverter LO port. Use Value: Eliminates two separate VCOs or a divider chain, reducing size, power, and phase noise degradation from active division. |
Use Scenario: Mobile SATCOM terminals needing agile, temperature-stable LO sources for LNB downconversion and uplink excitation. IC Role / Device Role / Timing Role: Dual-output VCO generating Fo for uplink transmit LO and Fo/2 for downlink receive LO in compact phased-array front-ends. Use Value: Monolithic integration ensures correlated phase tracking between up/down paths, improving EVM and adjacent channel rejection. |
| Military Radar Altimeters | Test Equipment Synthesizers |
|
Use Scenario: Frequency-modulated continuous-wave (FMCW) radar altimeters requiring precise, low-drift VCOs for height measurement accuracy. IC Role / Device Role / Timing Role: Core VCO supplying linearly swept Fo (14.25–15.65 GHz) to transmit antenna and Fo/4 (3.56–3.91 GHz) to IF processing chain. Use Value: <1.0 MHz/°C drift and <10 MHz pp pulling ensure altitude resolution stability across environmental extremes. |
Use Scenario: Benchtop microwave signal generators requiring fast-tuning, low-noise sources for receiver sensitivity testing. IC Role / Device Role / Timing Role: Modular VCO module delivering Fo, Fo/2, and Fo/4 simultaneously to multiple internal test paths or external DUTs. Use Value: Independent supply disable capability allows dynamic current optimization during calibration vs. operational modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar VCO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC513LP5 | Narrower Fo range (12.4–13.4 GHz); no Fo/2 or Fo/4 outputs; higher output power (+12 dBm). | Limited to single-band LO generation; lacks integrated division, requiring external dividers for multi-band use. | Choose when only fundamental output is needed and higher power is critical; avoid when Fo/2 or Fo/4 functionality is required. |
| ADF4371 | Si-based PLL+VCO IC; wider Fo range (6–32 GHz); integrated fractional-N synthesizer; requires external loop filter. | Enables programmable frequency steps and phase alignment; higher integration but greater design complexity and phase noise floor. | Choose when digital frequency agility, fine resolution, or phase synchronization is required; HMC632LP5 preferred for analog-tuned simplicity and lower close-in phase noise. |
Compared with HMC513LP5 and ADF4371, the HMC632LP5 uniquely delivers three simultaneous, phase-correlated RF outputs (Fo, Fo/2, Fo/4) in a single monolithic GaAs package with no external tuning elements-ideal for analog-centric, space-constrained microwave systems where spectral purity and supply flexibility outweigh programmability needs.
Availability
HMC632LP5 is available at Aetrix Electronics and suitable for point-to-point radio, SATCOM terminals, and military radar altimeters requiring stable component supply, consistent RF performance across temperature, and long-term obsolescence mitigation.
Supply support for HMC632LP5 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 HMC632LP5 belongs to Hittite's MMIC VCO product line, designed specifically for compact, high-performance local oscillator generation in defense, aerospace, and broadband wireless infrastructure where monolithic integration and low phase noise are critical.
FAQ
What is the operating temperature range for the HMC632LP5?
The HMC632LP5 operates over −40°C to +85°C ambient temperature. Its monolithic GaAs InGaP HBT structure ensures stable phase noise and frequency drift (<1.0 MHz/°C) across this full industrial/military range without external compensation. Thermal resistance from junction to ground paddle is 22°C/W, supporting reliable operation at full rated power within this envelope.
Can the HMC632LP5 generate all three outputs (Fo, Fo/2, Fo/4) simultaneously?
Yes, the HMC632LP5 can deliver RFOUT (Fo), RFOUT/2, and RFOUT/4 simultaneously when all three supply pins-Vcc(RF), Vcc(Amp), and Vcc(Dig)-are powered at +5 V. Each output is AC-coupled and electrically isolated; RFOUT/2 and RFOUT/4 require external DC blocking capacitors per the datasheet application circuit.
Does the HMC632LP5 require external tuning components or matching networks?
No. The HMC632LP5 is a fully self-contained MMIC VCO with integrated resonators, varactors, and amplification stages. It requires only DC decoupling capacitors on supply pins and AC coupling capacitors on RF outputs-no external inductors, varactors, or matching networks are needed for basic operation.
How does disabling Vcc(Dig) or Vcc(Amp) affect HMC632LP5 performance?
Disabling Vcc(Dig) disables the prescaler and eliminates RFOUT/4 output while saving ~65 mA. Disabling Vcc(Amp) disables the RFOUT/2 amplifier stage, removing that output and saving ~30 mA. Neither action affects RFOUT (Fo) performance, which remains fully functional with only Vcc(RF) powered.
What is the recommended PCB grounding practice for the HMC632LP5?
The exposed ground paddle and pins 5, 11, and all N/C pins must be soldered to a solid RF/DC ground plane using multiple thermal vias. Hittite specifies this per their land pattern recommendation; inadequate grounding degrades phase noise, output power, and harmonic suppression. Rogers 4350 substrate is used on the official evaluation board (110225) for optimal RF performance.
110227-HMC632LP5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Type:
- Voltage Controlled Oscillator (VCO)
- Frequency:
- 14.25GHz ~ 15.65GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC632LP5
110227-HMC632LP5 FAQ
1.How can I place an order for 110227-HMC632LP5 through Aetrix?
Please submit a Request for Quotation (RFQ) for 110227-HMC632LP5 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 110227-HMC632LP5 reliable?
The price and inventory of 110227-HMC632LP5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 110227-HMC632LP5 is usually 5 days.
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Once your 110227-HMC632LP5 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 110227-HMC632LP5?
For technical support, including 110227-HMC632LP5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 110227-HMC632LP5 requirements.
6.How does Aetrix verify that 110227-HMC632LP5 is sourced from the original manufacturer or authorized distributors?
All 110227-HMC632LP5 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 110227-HMC632LP5 meets industry standards.
7.What is the process for return or replacement of 110227-HMC632LP5?
All 110227-HMC632LP5 units undergo pre-shipment inspection (PSI). If there is an issue with 110227-HMC632LP5, 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 110227-HMC632LP5 part is unused and in its original packaging.
Return procedure for 110227-HMC632LP5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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