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Analog Devices Inc. 107384-HMC494LP3
- Part No.:
- 107384-HMC494LP3
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
107384-HMC494LP3.pdf
- Description:
- BOARD EVAL HMC494LP3E
- Quantity:
- Payment:
- Shipping:
Inventory:1,327
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Product details
Overview
107384-HMC494LP3 from Hittite Microwave Corporation (now Analog Devices) is a GaAs HBT MMIC static frequency divider operating DC–18 GHz input with divide-by-8 functionality, −4 dBm typical output power, −150 dBc/Hz SSB phase noise at 100 kHz offset, and single +5 V supply. It serves as a prescaler in high-frequency PLL systems for point-to-point radios and fiber-optic transceivers.
For engineers reviewing the 107384-HMC494LP3 datasheet, 107384-HMC494LP3 pinout, 107384-HMC494LP3 application, or 107384-HMC494LP3 equivalent, key selection criteria include input frequency range (DC–18 GHz), differential RF input capability, QFN-16 package thermal performance, and low-phase-noise operation in RF synthesizer front-ends.
Technical Context
The 107384-HMC494LP3 implements a static CMOS-compatible divide-by-8 architecture using InGaP GaAs HBT technology, enabling operation down to DC with square-wave input or 200 MHz minimum with sine-wave input. Its dual RF inputs (pins 2 and 3) support both single-ended and differential drive modes, while dual complementary outputs (pins 10 and 11) deliver 180° phase-shifted divided signals.
It draws 103 mA total supply current across two independent +5 V rails (Vcc1/Vcc2 on pins 14/15), features 55 dB reverse isolation between outputs, and maintains −4 dBm output power across 0.5–18 GHz input range. Thermal resistance is 84 °C/W junction-to-ground paddle, supporting operation from −40 °C to +85 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Division Ratio | Fixed divide-by-8; deterministic integer division without programmability or reconfiguration. |
| Input Frequency Range | DC–18 GHz (square wave); 200 MHz–18 GHz (sine wave); enables use in wideband PLL prescaling. |
| Output Power | −7 to −4 dBm (typ. −4 dBm); sufficient to drive subsequent RF stages without amplification in many synthesizer designs. |
| SSB Phase Noise | −150 dBc/Hz @ 100 kHz offset (Pin = 0 dBm, Fin = 6 GHz); preserves system EVM and spectral purity in high-order modulation schemes. |
| Supply Voltage | +5 V ± 0.25 V on two dedicated pins (Vcc1/Vcc2); decoupling required per RF layout best practices. |
| Operating Temperature | −40 °C to +85 °C; qualified for industrial and military-grade RF subsystems including VSAT and test equipment. |
| Package | 16-lead 3×3 mm QFN with exposed ground paddle; requires soldering of ground slug to PCB RF ground plane. |
Pinout & Package
107384-HMC494LP3 is housed in a leadless 3×3 mm QFN package (9 mm² footprint) with 16 terminals and an exposed ground paddle requiring direct connection to PCB RF ground. Pin numbering follows JEDEC MO-220 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4–9, 12, 13, 16 | No Connection | Internally unconnected; must remain floating or tied to ground only if specified in layout guidelines. |
| 2 | RF Input (IN) | Primary single-ended RF input; requires external DC blocking capacitor. |
| 3 | RF Input (IN) | Differential complement to pin 2; 180° out-of-phase for balanced drive; AC-grounded for single-ended use. |
| 10 | RF Output (OUT) | Primary divided output (Fin/8); complementary to pin 11. |
| 11 | RF Output (OUT) | Secondary divided output, 180° phase inverted relative to pin 10; supports differential clock distribution. |
| 14, 15 | Supply (Vcc1, Vcc2) | Two independent +5 V supply inputs; both must be decoupled and connected to clean 5 V rail. |
| GND | Ground | Backside exposed metal slug; must be soldered to solid RF/DC ground plane with multiple thermal vias. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low phase noise | −150 dBc/Hz @ 100 kHz offset enables high-spectral-purity local oscillators in 5G and radar systems. |
| Dual RF input configuration | Pins 2 and 3 support either single-ended (pin 3 AC-grounded) or true differential drive without external balun. |
| Wideband DC–18 GHz operation | Eliminates need for multiple prescalers across microwave bands; simplifies multi-band PLL architecture. |
| QFN thermal performance | 84 °C/W junction-to-ground paddle resistance allows stable operation at full 103 mA load up to +85 °C ambient. |
| High reverse isolation | 55 dB isolation between output ports prevents crosstalk in dual-output clock distribution networks. |
Applications
| Point-to-Point Radio Prescaler | Fiber-Optic Transceiver Clock Recovery |
|---|---|
Use Scenario: Used in the RF front-end of licensed microwave backhaul links operating at 13–38 GHz to reduce VCO frequency before phase detection. IC Role / Device Role / Timing Role: Prescaler providing divide-by-8 function to extend PLL loop bandwidth while maintaining stability. Use Value: Enables use of lower-frequency, higher-performance PFDs and loop filters without sacrificing RF channel agility. |
Use Scenario: Integrated into 100G coherent optical modules to derive reference clocks from high-speed recovered data streams. IC Role / Device Role / Timing Role: Frequency divider generating clean, low-jitter clock signals for DSP sampling and FEC timing. Use Value: −150 dBc/Hz phase noise directly improves BER performance by reducing sampling jitter-induced error floors. |
| VSAT LNB Local Oscillator | RF Test Equipment Synthesizer |
Use Scenario: Embedded in satellite outdoor units to generate stable LO signals for Ka-band downconversion (26.5–40 GHz). IC Role / Device Role / Timing Role: High-frequency prescaler feeding a narrowband PLL that locks to a low-noise OCXO reference. Use Value: DC–18 GHz input range accommodates fundamental VCOs up to X-band, reducing need for harmonic mixing. |
Use Scenario: Core component in benchtop signal generators and spectrum analyzers requiring agile, low-noise RF synthesis. IC Role / Device Role / Timing Role: Wideband divider enabling fast hop-settling and fine-resolution frequency steps in YIG-tuned synthesizers. Use Value: Single +5 V supply and compact QFN package simplify modular instrument design and thermal management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar frequency divider applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC494LP3E | RoHS-compliant version with 100% matte Sn lead finish and 260 °C max reflow; identical electrical specs and pinout. | Required for lead-free manufacturing; same RF performance and thermal behavior as 107384-HMC494LP3. | Select HMC494LP3E when RoHS compliance and Pb-free assembly are mandatory; otherwise 107384-HMC494LP3 remains optimal for legacy Sn/Pb processes. |
| HMC363LP4 | Divide-by-4, DC–20 GHz, −148 dBc/Hz phase noise @ 100 kHz, 4×4 mm QFN-24 package, +5.5 V max supply. | Better high-frequency margin but coarser division ratio; larger footprint and different pin count limit drop-in replacement. | Choose HMC363LP4 only when divide-by-4 is acceptable and >18 GHz input coverage is critical; not pin-compatible with 107384-HMC494LP3. |
Compared with HMC494LP3E and HMC363LP4, the 107384-HMC494LP3 offers optimal trade-off of division ratio, phase noise, and package size for DC–18 GHz prescaling-especially where Sn/Pb assembly is permitted and divide-by-8 is required without board redesign.
Availability
107384-HMC494LP3 is available at Aetrix Electronics and suitable for point-to-point radios, VSAT terminals, and fiber-optic transceivers requiring stable component supply, consistent RF performance across temperature, and long-term obsolescence mitigation.
Supply support for 107384-HMC494LP3 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 RF ICs for defense, communications, and instrumentation markets using GaAs and SiGe process technologies.
The HMC494LP3 belongs to Hittite's static divider product line designed specifically for ultra-low-phase-noise prescaling in microwave PLLs-targeting applications demanding DC-coupled operation, wide instantaneous bandwidth, and minimal additive jitter.
FAQ
What is the minimum input frequency supported by the 107384-HMC494LP3?
The 107384-HMC494LP3 supports DC input for square-wave signals, making it usable with digital clock sources. For sine-wave inputs, the minimum frequency is 200 MHz (0.2 GHz) at +25 °C. Performance degrades below this threshold due to reduced input sensitivity, and operation below 200 MHz requires verification with actual waveform shape and amplitude.
Does the 107384-HMC494LP3 require external biasing or level-shifting circuitry?
No. The 107384-HMC494LP3 operates from a single +5 V supply applied to pins 14 and 15, with no external bias network needed. RF inputs require only DC-blocking capacitors; no active level-shifting or termination resistors are necessary for standard 50 Ω system interfacing.
Can the 107384-HMC494LP3 be used in differential input mode?
Yes. The 107384-HMC494LP3 accepts differential RF input via pins 2 and 3, which are 180° out of phase. When driven differentially, common-mode rejection improves noise immunity and suppresses even-order harmonics-critical for high-dynamic-range PLL applications.
What is the recommended PCB grounding practice for the 107384-HMC494LP3?
The exposed ground paddle on the underside of the 107384-HMC494LP3 must be soldered to a solid RF/DC ground plane using multiple thermal vias (≥6). All ground leads (pins 1, 4–9, 12, 13, 16) should connect directly to this plane; floating or improperly grounded paddles cause degraded phase noise and output power instability.
Is the 107384-HMC494LP3 pin-compatible with the HMC494LP3E variant?
Yes. The 107384-HMC494LP3 and HMC494LP3E share identical pinout, package dimensions, and electrical specifications. The only differences are lead finish (Sn/Pb vs. 100% matte Sn) and MSL rating reflow profile-making them mechanically and electrically interchangeable in existing layouts.
107384-HMC494LP3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Type:
- Prescaler
- Frequency:
- 0Hz ~ 18GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC494LP3
107384-HMC494LP3 FAQ
1.How can I place an order for 107384-HMC494LP3 through Aetrix?
Please submit a Request for Quotation (RFQ) for 107384-HMC494LP3 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 107384-HMC494LP3 reliable?
The price and inventory of 107384-HMC494LP3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 107384-HMC494LP3 is usually 5 days.
3.What payment methods are accepted for 107384-HMC494LP3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 107384-HMC494LP3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 107384-HMC494LP3?
107384-HMC494LP3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 107384-HMC494LP3 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 107384-HMC494LP3?
For technical support, including 107384-HMC494LP3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 107384-HMC494LP3 requirements.
6.How does Aetrix verify that 107384-HMC494LP3 is sourced from the original manufacturer or authorized distributors?
All 107384-HMC494LP3 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 107384-HMC494LP3 meets industry standards.
7.What is the process for return or replacement of 107384-HMC494LP3?
All 107384-HMC494LP3 units undergo pre-shipment inspection (PSI). If there is an issue with 107384-HMC494LP3, 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 107384-HMC494LP3 part is unused and in its original packaging.
Return procedure for 107384-HMC494LP3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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