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Analog Devices Inc. 108648-HMC588LC4B
- Part No.:
- 108648-HMC588LC4B
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
108648-HMC588LC4B.pdf
- Description:
- EVAL BOARD HMC588LC4B
- Quantity:
- Payment:
- Shipping:
Inventory:3,080
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Product details
Overview
The HMC588LC4B from Analog Devices (formerly Hittite Microwave) is a GaAs InGaP HBT monolithic voltage-controlled oscillator with integrated buffer amplifier, operating from 8.0 to 12.5 GHz, delivering +5 dBm output power, -93 dBc/Hz SSB phase noise at 100 kHz offset, and tuning via 0–13 V analog control voltage. It serves as a wideband RF signal source in radar and test instrumentation.
For engineers reviewing the HMC588LC4B datasheet, HMC588LC4B pinout, HMC588LC4B application, or HMC588LC4B equivalent, key selection criteria include its 4.5 GHz tuning bandwidth, single +5 V supply operation at 55 mA, RoHS-compliant 4 × 4 mm SMT package, and integrated resonator eliminating external components.
Technical Context
The HMC588LC4B integrates a negative-resistance oscillator core, varactor tuning diode, and buffer amplifier on a single GaAs die, enabling stable wideband frequency synthesis without external resonators or amplification stages. Its monolithic construction ensures consistent phase noise and output power across temperature.
It operates from a single +5 V supply with 55 mA typical current draw, accepts 0–13 V analog tuning voltage, and exhibits 100 MHz/V pushing and 4 MHz peak-to-peak pulling into 2.0:1 VSWR - critical for systems requiring low sensitivity to supply and load variations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 8.0–12.5 GHz: Covers full X-band and lower Ku-band, suitable for broadband radar and spectrum analysis. |
| Output Power | +5 dBm typ.: Sufficient to drive mixers or prescalers directly without external gain stages. |
| SSB Phase Noise @ 100 kHz | -93 dBc/Hz: Enables high-resolution spectral measurements and low-error-rate digital modulation. |
| Tuning Voltage Range | 0–13 V: Allows full band coverage using standard DACs or analog control circuits. |
| Supply Current | 55 mA @ +5 V: Low power enables dense integration in multi-VCO phased arrays or portable test gear. |
| Package | 4 × 4 mm SMT ceramic: Surface-mountable with exposed ground paddle for optimal RF grounding and thermal dissipation. |
| Operating Temp | -40°C to +85°C: Qualified for industrial and military environmental conditions without derating. |
Pinout & Package
RoHS-compliant 4 × 4 mm ceramic SMT package with 24-pin layout and exposed ground paddle requiring solder connection to PCB RF ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–3, 5–11, 13, 17–24 | No Connection | Internally unconnected; may be tied to ground for mechanical stability or EMI shielding. |
| 4 | Vtune | Analog tuning input; accepts 0–13 V DC; modulation bandwidth depends on source impedance. |
| 12 | Vcc | +5 V DC supply pin; bypassing with 1000 pF (0402) and 4.7 μF tantalum recommended. |
| 14, 16 | GND | RF/DC ground terminals; must be soldered to top-layer ground plane with multiple vias. |
| 15 | RFOUT | AC-coupled 50 Ω RF output; requires external DC blocking capacitor for interfacing. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Resonator | Eliminates external LC tanks or YIG spheres, reducing board area and alignment complexity. |
| Monolithic GaAs InGaP HBT Process | Ensures stable phase noise and output power over -40°C to +85°C without calibration. |
| Buffer Amplifier Integration | Isolates oscillator core from load variations, minimizing pulling and enabling direct 50 Ω interface. |
| Low Tuning Port Leakage | ≤10 μA at +13 V: Reduces DAC loading and improves tuning linearity in closed-loop PLLs. |
| Exposed Ground Paddle | Provides low-inductance RF return path and 95 °C/W thermal resistance for reliable +85°C operation. |
Applications
| Radar Transceiver Local Oscillator | Test Equipment Synthesizer Core |
|---|---|
Use Scenario: Used as the LO source in X-band pulsed radar front-ends requiring rapid frequency agility and low phase noise. IC Role / Device Role / Timing Role: Wideband VCO providing tunable RF carrier generation with integrated buffer for mixer drive. Use Value: 4.5 GHz tuning range enables chirp-based target resolution; -93 dBc/Hz phase noise supports high-SNR pulse compression. | Use Scenario: Core oscillator in benchtop signal generators covering 8–12.5 GHz with fast sweep capability. IC Role / Device Role / Timing Role: Primary frequency synthesis element in modular RF sources with analog voltage tuning interface. Use Value: Single +5 V supply and 55 mA consumption simplify power architecture; no external resonator reduces calibration steps. |
| Military EW/ECM Jammer Front-End | Medical Imaging RF Excitation |
Use Scenario: Frequency-agile source in compact electronic warfare pods generating broadband jamming waveforms. IC Role / Device Role / Timing Role: Wide-tuning VCO driving upconversion stages to cover threat radar bands dynamically. Use Value: 0–13 V tuning range enables direct DAC control of instantaneous frequency; 4 MHz pp pulling tolerance maintains spectral purity under antenna mismatch. | Use Scenario: RF excitation source in portable MRI or microwave ablation systems operating in ISM 915 MHz–2.45 GHz harmonics or higher bands. IC Role / Device Role / Timing Role: Stable, low-noise local oscillator for heterodyne detection or coherent RF delivery. Use Value: Monolithic construction ensures repeatability across production units; -40°C to +85°C rating supports field-deployable medical hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wideband VCO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC589LC4B | Same 4 × 4 mm package; 10–14 GHz range; +4 dBm output; -91 dBc/Hz phase noise @ 100 kHz. | Covers upper X-band and lower Ku-band; less suitable for 8–10 GHz radar receivers. | Select when system requires >10 GHz center frequency and can accept 1 dB lower output. |
| ADF4371BCPZ | SiGe PLL+VCO IC; 6.5–13.6 GHz; integrated fractional-N synthesizer; requires external loop filter. | Enables programmable step tuning and digital control; higher power (220 mA), larger footprint (7 × 7 mm). | Choose for systems needing frequency agility via SPI, not analog voltage tuning. |
Compared with HMC589LC4B and ADF4371BCPZ, the HMC588LC4B offers the widest continuous tuning range (8–12.5 GHz) in its footprint, lowest power among monolithic wideband VCOs, and simplest analog interface - ideal where voltage control, size, and phase noise are prioritized over digital programmability.
Availability
HMC588LC4B is available at Aetrix Electronics and suitable for radar transceivers, test equipment synthesizers, military EW systems, and medical RF excitation modules requiring stable component supply and long-term obsolescence management.
Supply support for HMC588LC4B 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 company specializing in high-performance analog, mixed-signal, and RF technologies for precision signal processing and connectivity.
The HMC588LC4B belongs to Analog Devices' legacy Hittite Microwave MMIC VCO product line, designed specifically for wideband, low-phase-noise RF signal generation in defense, test, and industrial systems.
FAQ
What is the recommended power supply decoupling for the HMC588LC4B?
Use a 1000 pF 0402 capacitor placed adjacent to Pin 12 (Vcc) and a 4.7 μF tantalum capacitor near the device. Both must connect to the exposed ground paddle via short traces and multiple vias. This configuration suppresses supply noise and maintains phase noise performance across the 8–12.5 GHz band. The HMC588LC4B is sensitive to Vcc ripple; improper decoupling degrades SSB phase noise by >3 dB.
Does the HMC588LC4B require an external resonator or tuning varactor?
No. The HMC588LC4B integrates the resonator, negative-resistance device, and varactor diode on a single GaAs die. No external LC tank, YIG sphere, or discrete varactor is needed - simplifying design, reducing bill-of-materials, and improving reliability. This monolithic architecture is confirmed in the functional diagram and general description of the HMC588LC4B datasheet.
What is the maximum allowable tuning voltage for the HMC588LC4B?
The absolute maximum tuning voltage (Vtune) for the HMC588LC4B is +15 V DC, per the Absolute Maximum Ratings table. Operation above +13 V may cause frequency saturation or increased phase noise but remains within safe operating limits up to +15 V. For full 8–12.5 GHz coverage, +13 V is the recommended maximum tuning voltage specified in the HMC588LC4B electrical specifications.
How is RF output coupling implemented on the HMC588LC4B?
The HMC588LC4B provides AC-coupled RF output at Pin 15 (RFOUT). An external DC-blocking capacitor - typically 100 pF ceramic - must be placed in series between Pin 15 and the 50 Ω load. This prevents DC bias from affecting downstream components while preserving RF integrity. The evaluation board (108646) confirms this implementation using a microstrip-coupled structure with integrated capacitor.
What is the thermal resistance and junction temperature limit of the HMC588LC4B?
The HMC588LC4B has a thermal resistance of 95 °C/W (junction to ground paddle) and a maximum junction temperature of 135 °C. With 55 mA at +5 V (275 mW dissipation), proper soldering of the exposed ground paddle to a thermally robust PCB ground plane is essential. At ambient +85 °C, junction temperature reaches ~132 °C - within spec if thermal vias and copper area meet Hittite's recommended layout guidelines for the HMC588LC4B.
108648-HMC588LC4B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Discontinued at Digi-Key
- Type:
- Voltage Controlled Oscillator (VCO)
- Frequency:
- 8GHz ~ 12.5GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC588LC4B
108648-HMC588LC4B FAQ
1.How can I place an order for 108648-HMC588LC4B through Aetrix?
Please submit a Request for Quotation (RFQ) for 108648-HMC588LC4B 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 108648-HMC588LC4B reliable?
The price and inventory of 108648-HMC588LC4B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 108648-HMC588LC4B is usually 5 days.
3.What payment methods are accepted for 108648-HMC588LC4B?
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4.How is shipping managed for 108648-HMC588LC4B?
108648-HMC588LC4B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 108648-HMC588LC4B 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 108648-HMC588LC4B?
For technical support, including 108648-HMC588LC4B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 108648-HMC588LC4B requirements.
6.How does Aetrix verify that 108648-HMC588LC4B is sourced from the original manufacturer or authorized distributors?
All 108648-HMC588LC4B 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 108648-HMC588LC4B meets industry standards.
7.What is the process for return or replacement of 108648-HMC588LC4B?
All 108648-HMC588LC4B units undergo pre-shipment inspection (PSI). If there is an issue with 108648-HMC588LC4B, 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 108648-HMC588LC4B part is unused and in its original packaging.
Return procedure for 108648-HMC588LC4B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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