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Analog Devices Inc. 105811-HMC440QS16G
- Part No.:
- 105811-HMC440QS16G
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
105811-HMC440QS16G.pdf
- Description:
- BOARD EVAL HMC440QS16GE
- Quantity:
- Payment:
- Shipping:
Inventory:2,566
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Product details
Overview
The 105811-HMC440QS16G from Analog Devices (formerly Hittite Microwave) is an integer-N frequency synthesizer IC integrating a 10–1300 MHz phase-frequency detector and a 5-bit programmable counter (N = 2–32) operating up to 2.8 GHz. It delivers ultra-low SSB phase noise of –153 dBc/Hz at 10 kHz offset (100 MHz reference), supports differential reference and VCO inputs, and targets low-noise PLL loop designs in microwave communication systems.
For engineers reviewing the 105811-HMC440QS16G datasheet, 105811-HMC440QS16G pinout, 105811-HMC440QS16G application, or 105811-HMC440QS16G equivalent, this device is selected for fast-settling, wide-loop-bandwidth synthesizers requiring precise N-divider control, open-collector error voltage outputs, and operation across –40°C to +85°C with 5 V ±0.2 V supply.
Technical Context
The 105811-HMC440QS16G implements an asynchronous or synchronous 5-bit down-counter architecture with CMOS-compatible A0–A4 programming inputs. Its PFD generates differential up/down error voltages (U/NU, D/ND) referenced to Vcc, enabling direct interfacing with op-amp-based loop filters.
It accepts AC-coupled differential reference (REF/NREF) and VCO (VCO/NVCO) signals, features open-collector output buffers, and operates with a 5 V supply drawing 250 mA typical. The device supports both single-ended and differential input configurations and includes internal logic-level compatibility for TTL/CMOS control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range (PFD) | 10–1300 MHz: Enables use with crystal oscillators, TCXOs, or buffered reference sources across UHF/microwave bands. |
| Counter Max Frequency | 2.8 GHz: Supports direct division of high-frequency VCO signals without prescaling in many PLL topologies. |
| Programmable Division Ratio | N = 2–32: Provides discrete, stable integer steps for synthesizer channel spacing and loop gain tuning. |
| SSB Phase Noise Floor | –153 dBc/Hz @ 10 kHz offset (100 MHz ref): Enables low-jitter clock generation and narrowband RF synthesis. |
| Supply Current | 250 mA @ +5 V: Defines thermal design margin and power rail sizing for QSOP16G layout. |
| Operating Temperature | –40°C to +85°C: Validates suitability for outdoor radio, military comms, and industrial base station environments. |
| Output Voltage (Pk–Pk) | 2000 mV into 200 Ω pull-up: Sets loop filter resistor range and op-amp input swing requirements. |
Pinout & Package
105811-HMC440QS16G uses a 16-lead QSOP plastic package (29.4 mm² footprint) with exposed ground paddle requiring soldering to PCB RF ground per manufacturer guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | FOUT / NFOUT | DC-coupled test ports only; not intended for functional output-must be DC-blocked externally. |
| 3, 4 | ND / D | Differential down-error voltage outputs for loop filter integration; open-collector, require pull-up. |
| 5, 6 | NU / U | Differential up-error voltage outputs; complementary to ND/D, enable balanced charge pump behavior. |
| 7, 8 | REF / NREF | AC-coupled differential reference inputs; require external DC blocking and 50 Ω termination. |
| 9 | Vcc | +5 V ±0.2 V supply input; bypassing with 100 pF (0402) and 1000 pF (0603) capacitors required per eval board. |
| 10–14 | A0–A4 | CMOS-compatible 5-bit LSB-to-MSB divider control inputs; VIH ≥1.8 V, VIL ≤1.1 V; synchronous/asynchronous load. |
| 15, 16 | VCO / NVCO | AC-coupled differential VCO feedback inputs; require external DC blocking and 50 Ω matching. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low phase noise floor | –153 dBc/Hz @ 10 kHz offset enables <100 fs integrated jitter in 12 kHz–20 MHz band for SONET clocks. |
| 5-bit programmable N-divider | N = 2–32 with synchronous/asynchronous loading allows flexible channel spacing and loop bandwidth optimization. |
| Differential PFD architecture | Reduces common-mode noise coupling and improves rejection of supply/substrate interference in RF layouts. |
| Open-collector error outputs | Supports direct connection to op-amp integrators or active loop filters without level-shifting circuitry. |
| QSOP16G RF-optimized package | Exposed ground paddle and strict grounding rules minimize parasitic inductance for >1 GHz signal integrity. |
Applications
| Satellite Communication Systems | Point-to-Point Radios |
|---|---|
Use Scenario: Generating stable local oscillator (LO) signals for QPSK/QAM upconverters in L/S-band satellite transceivers. IC Role / Device Role / Timing Role: Integer-N PFD/counter core in a wide-bandwidth PLL driving a 2–4 GHz VCO with sub-100 fs jitter. Use Value: Ultra-low phase noise ensures EVM compliance under high-order modulation and mitigates adjacent-channel interference. |
Use Scenario: Providing agile, low-phase-noise LO synthesis for 6–42 GHz E-band backhaul radios with fast frequency hopping. IC Role / Device Role / Timing Role: Reference-to-VCO phase comparator in a fractional-N assisted integer loop, where HMC440QS16G sets coarse N-step resolution. Use Value: Fast settling (<32 ns worst-case async) and deterministic N-programming reduce channel switch latency in TDD systems. |
| Military Radar Systems | SONET/SDH Clock Generation |
Use Scenario: Synthesizing chirp waveforms and coherent IF references in X-band pulse-Doppler radar front-ends. IC Role / Device Role / Timing Role: Core PFD in a low-noise, temperature-stable PLL locked to an ovenized OCXO reference. Use Value: –40°C to +85°C operation and robust differential inputs maintain lock stability under shock/vibration and thermal cycling. |
Use Scenario: Generating 155.52 MHz or 622.08 MHz system clocks meeting GR-1244-CORE jitter masks for OC-3/OC-48 line cards. IC Role / Device Role / Timing Role: Low-noise integer-N synthesizer stage feeding a jitter-cleaner PLL or directly driving CDR circuits. Use Value: –153 dBc/Hz phase noise at 10 kHz translates to <0.2 ps RMS jitter (12 kHz–20 MHz), satisfying ITU-T G.823 limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar integer-N synthesizer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC4044LP4E | Wider PFD range (10–2500 MHz); higher max counter freq (4 GHz); RoHS-compliant 24-lead QFN. | Supports higher VCO frequencies and tighter loop bandwidths; requires different PCB layout and thermal management. | Choose when extending beyond 2.8 GHz VCO operation or needing enhanced thermal performance via QFN paddle. |
| ADF4107BRUZ | Integrated charge pump; SPI interface; lower max PFD freq (200 MHz); 20-lead TSSOP package. | Lacks differential inputs and open-collector outputs; suited for simpler, lower-frequency PLLs with microcontroller control. | Choose for cost-sensitive, non-microwave designs where serial programming and integrated charge pump simplify loop design. |
Compared with HMC4044LP4E and ADF4107BRUZ, the 105811-HMC440QS16G offers optimal balance of ultra-low phase noise, 2.8 GHz counter capability, and differential I/O in a compact QSOP-ideal for fixed-N, high-performance microwave synthesizers where layout simplicity and noise floor dominate selection.
Availability
105811-HMC440QS16G is available at Aetrix Electronics and suitable for satellite communication systems, point-to-point radios, and military radar applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for 105811-HMC440QS16G 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.
The 105811-HMC440QS16G belongs to the former Hittite Microwave RF synthesis product line, engineered for low-phase-noise, high-frequency PLL architectures in defense, aerospace, and broadband wireless infrastructure.
FAQ
What is the maximum VCO input frequency supported by the 105811-HMC440QS16G?
The 105811-HMC440QS16G supports a maximum VCO input frequency of 2800 MHz under sine or square wave conditions. This specification is validated per the Electrical Specifications table in the official datasheet, and the device's 5-bit counter operates continuously across the full 2–32 division range at this frequency, enabling direct high-speed feedback without prescaling in many microwave PLL designs.
Does the 105811-HMC440QS16G include an integrated charge pump?
No, the 105811-HMC440QS16G does not include an integrated charge pump. It provides differential open-collector up/down error voltage outputs (U/NU and D/ND) designed to interface with external op-amp–based loop filters. This architecture gives designers full control over loop dynamics and noise shaping but requires external active filtering components.
What are the logic voltage thresholds for the A0–A4 control inputs on the 105811-HMC440QS16G?
The 105811-HMC440QS16G specifies VIH (minimum logic high) ≥ 1.8 V at 50 μA and VIL (maximum logic low) ≤ 1.1 V at 1 μA for its A0–A4 CMOS-compatible inputs. These thresholds ensure reliable interfacing with standard 3.3 V or 5 V digital controllers without level shifters, provided drive strength and timing meet synchronous/asynchronous load requirements.
Can the 105811-HMC440QS16G operate with a 3.3 V supply?
No-the 105811-HMC440QS16G is specified for Vcc = +5 V ± 0.2 V only. Absolute maximum supply voltage is +5.5 V, and operation below 4.8 V is not characterized. Attempting 3.3 V operation will result in undefined logic states, degraded PFD performance, and potential failure to latch A0–A4 programming bits reliably.
Is the 105811-HMC440QS16G pin-compatible with the HMC440QS16GE variant?
Yes-the 105811-HMC440QS16G and HMC440QS16GE share identical pinout, electrical specifications, and functional behavior. The sole difference is RoHS compliance: the 'G' version uses Sn/Pb lead finish (MSL1, 235 °C reflow), while the 'GE' version uses 100% matte Sn (MSL1, 260 °C reflow). Both are drop-in replacements in compatible assembly processes.
105811-HMC440QS16G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Type:
- Integer N Synthesizer (RF)
- Frequency:
- 10MHz ~ 1.3GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- HMC440QS16G
105811-HMC440QS16G FAQ
1.How can I place an order for 105811-HMC440QS16G through Aetrix?
Please submit a Request for Quotation (RFQ) for 105811-HMC440QS16G 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 105811-HMC440QS16G reliable?
The price and inventory of 105811-HMC440QS16G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 105811-HMC440QS16G is usually 5 days.
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Once your 105811-HMC440QS16G 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 105811-HMC440QS16G?
For technical support, including 105811-HMC440QS16G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 105811-HMC440QS16G requirements.
6.How does Aetrix verify that 105811-HMC440QS16G is sourced from the original manufacturer or authorized distributors?
All 105811-HMC440QS16G 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 105811-HMC440QS16G meets industry standards.
7.What is the process for return or replacement of 105811-HMC440QS16G?
All 105811-HMC440QS16G units undergo pre-shipment inspection (PSI). If there is an issue with 105811-HMC440QS16G, 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 105811-HMC440QS16G part is unused and in its original packaging.
Return procedure for 105811-HMC440QS16G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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