About us Contact Us Submit BOM
RFQs(0)
English
Close Menu
View All

Please refer to the English Version as our Official Version.Return

Europe
France(Français) Germany(Deutsch) Italy(Italia) Russian(русский) Poland(polski) Czech(Čeština) Luxembourg(Lëtzebuergesch) Netherlands(Nederland) Iceland(íslenska) Hungarian(Magyarország) Spain(español) Portugal(Português) Turkey(Türk dili) Bulgaria(Български език) Ukraine(Україна) Greece(Ελλάδα) Israel(עִבְרִית) Sweden(Svenska) Finland(Svenska) Finland(Suomi) Romania(românesc) Moldova(românesc) Slovakia(Slovenská) Denmark(Dansk) Slovenia(Slovenija) Slovenia(Hrvatska) Croatia(Hrvatska) Serbia(Hrvatska) Montenegro(Hrvatska) Bosnia and Herzegovina(Hrvatska) Lithuania(lietuvių) Spain(Português) Switzerland(Deutsch) United Kingdom(English)
Asia/Pacific
Japan(日本語) Korea(한국의) Thailand(ภาษาไทย) Malaysia(Melayu) Singapore(Melayu) Vietnam(Tiếng Việt) Philippines(Pilipino)
Africa, India and Middle East
United Arab Emirates(العربية) Iran(فارسی) Tajikistan(فارسی) India(हिंदी) Madagascar(malaɡasʲ)
South America / Oceania
New Zealand(Maori) Brazil(Português) Angola(Português) Mozambique(Português)
North America
United States(English) Canada(English) Haiti(Ayiti) Mexico(español)
HomeProductsIntegrated Circuits (ICs)Clock/Timing - Clock Generators, PLLs, Frequency SynthesizersHMC703LP4E
HMC703LP4E Image
HMC703LP4E Image - 1
Image may be representation.
See specifications for product details.
Share
 Favorite
EXPRESS OPTION
Payment method

HMC703LP4E - Analog Devices Inc.

Manufacturer Part Number
HMC703LP4E
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-HMC703LP4E
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
5,445 pcs available, New & Original
Parts Description
IC INTEGER-N/FRACTIONAL 24QFN
Package
24-QFN (4x4)
Data sheet
HMC703LP4E.pdf

Datasheets

HMC703LP4E.pdf

PCN Other

2.73KHz.pdf

PCN Assembly/Origin

2.73KHz.pdf

PCN Obsolescence/ EOL

Cylindrical Battery Holders.pdf
RoHs Status
 
Compare
Our certification
In stock: 5445
  • Unit Price: $13.329
  • Subtotal: $0.00

Want a better price?
Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity Unit Price Ext. Price
1+ $13.329 $13.33
30+ $12.772 $383.16
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

HMC703LP4E Tech Specifications
Analog Devices Inc. - HMC703LP4E technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - HMC703LP4E

Product Attribute Attribute Value
Manufacturer Analog Devices, Inc.
Voltage - Supply 2.7V ~ 5.5V
Type Integer-N/Fractional-N
Supplier Device Package 24-QFN (4x4)
Series -
Ratio - Input:Output 1:1
Package / Case 24-VFQFN Exposed Pad
Package Strip
PLL Yes
Product Attribute Attribute Value
Output CMOS
Operating Temperature -40°C ~ 85°C
Number of Circuits 1
Mounting Type Surface Mount
Input CMOS
Frequency - Max 8GHz
Divider/Multiplier Yes/No
Differential - Input:Output Yes/No
Base Product Number HMC703

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

HMC703LP4E Image
HMC703LP4E (1)

Manufacturer Part Number

HMC703LP4E

Manufacturer

Analog Devices

Introduction

The HMC703LP4E is a high-performance, flexible clock generator and frequency synthesizer designed to support a wide range of applications in the areas of communication, measurement, and computing.

Product Features and Performance

Supports both Integer-N and Fractional-N synthesis

Integrated Phase-Locked Loop (PLL) for precise frequency generation

CMOS inputs and outputs for compatibility with a wide range of digital systems

Capable of generating frequencies up to 8GHz, supporting high-speed applications

Operates over a supply voltage range of 2.7V to 5.5V, allowing flexibility in power supply design

Designed for surface mount technology, enabling compact and efficient PCB designs

Product Advantages

High frequency capability supports emerging high-speed applications

Flexibility in operation with both integer-N and fractional-N modes

Wide supply voltage range enhances compatibility with various power systems

Integrated PLL reduces the need for external components, simplifying the design

High precision and stability in frequency generation

Key Technical Parameters

Type: Integer-N/Fractional-N

PLL: Yes

Input: CMOS

Output: CMOS

Number of Circuits: 1

Ratio Input:Output: 1:1

Frequency Max: 8GHz

Voltage Supply: 2.7V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Package / Case: 24-VFQFN Exposed Pad

Quality and Safety Features

Operates reliably within a wide temperature range of -40°C to 85°C

Encased in a robust package to ensure protection against physical and environmental stress

Compatibility

Compatible with a wide range of digital systems through its CMOS inputs and outputs

Application Areas

Communication systems, including radio, telecom, and data transmission

Measurement and test equipment

High-speed computing and data processing systems

Product Lifecycle

This product is listed as obsolete, indicating it may be nearing the end of its production life.

Alternatives or upgrades may be available from Analog Devices for designs requiring long-term support.

Several Key Reasons to Choose This Product

Supports high-speed applications up to 8GHz, making it suitable for future-proofing designs

Flexibility in design with both Integer-N and Fractional-N synthesis capabilities

Wide operating voltage and temperature range ensure compatibility and reliability across multiple applications

Integrated PLL simplifies design and reduces component count, leading to cost savings

Obsolescence status necessitates careful consideration for new designs, but may still be viable for existing designs or special applications requiring high-performance clock synthesis

Frequently Asked Questions(FAQ)

How does the HMC703LP4E compare to the ADF4159WCCPZ in terms of maximum operating frequency and phase noise performance when used in a 5G mmWave local oscillator design?
The HMC703LP4E supports a maximum frequency of 8GHz, making it suitable for 5G mmWave applications up to Ka-band, whereas the ADF4159WCCPZ typically caps around 6GHz. In fractional-N PLL implementations targeting sub-6GHz cellular bands, the HMC703LP4E generally delivers lower integrated phase noise due to its higher reference bandwidth and superior charge pump linearity, resulting in better spur suppression at offset frequencies above 1MHz. However, the ADF4159WCCPZ may offer tighter loop bandwidth control in narrowband synthesizer configurations, which can reduce in-band spurs when synthesizing low-channel-step signals.
What are the key trade-offs when selecting the HMC703LP4E versus an external VCO-based solution for a 28GHz phased array transmitter requiring integer-N mode?
Using the HMC703LP4E in integer-N mode avoids the need for a separate VCO but limits frequency resolution to the reference frequency divided by the feedback divider, which can lead to larger channel steps at high frequencies like 28GHz. This increases spurious levels from fractional artifacts if not carefully managed with sigma-delta modulation. In contrast, an external VCO allows independent tuning of center frequency and loop dynamics, enabling finer resolution through higher reference rates or dual-modulus dividers, though at the cost of increased board space, power, and phase noise floor from additional components.
Can the HMC703LP4E be used reliably in a battery-powered IoT edge node operating across -40°C to 85°C without calibration drift affecting timing accuracy?
Yes, the HMC703LP4E operates over the full -40°C to 85°C range specified, and internal compensation circuits maintain lock stability under typical supply variations within 2.7V–5.5V. However, long-term aging effects on the onboard crystal reference (if used) may introduce ppm-level frequency drift per year, comparable to standard TCXOs. For applications demanding sub-10ppb stability, an external ovenized reference or periodic software recalibration based on GPS-disciplined feedback is recommended to mitigate cumulative error.
How does the HMC703LP4E handle supply noise and what layout precautions are necessary to ensure low-jitter output in a dense RF front-end?
The device features internal LDOs that regulate core voltages independently of the main supply rails, providing rejection of transient noise above 100kHz. To minimize jitter, bypass capacitors must be placed within 1mm of each power pin with low-inductance paths to ground. Additionally, the exposed pad should be connected to a solid ground plane using multiple vias to reduce thermal resistance and stabilize internal bias currents, especially critical when driving CMOS loads at frequencies approaching 8GHz.
Is it possible to cascade two HMC703LP4E units to extend frequency coverage beyond 8GHz while maintaining phase coherence?
Cascading HMC703LP4E devices directly is not supported due to lack of master-slave synchronization logic and asynchronous reference inputs that would cause phase misalignment between stages. Instead, a single-stage approach using the HMC703LP4E driving an external frequency doubler or multiplier chain preserves phase noise integrity. Alternatively, newer fractional-N architectures with cascaded PLL topologies—such as those combining the HMC703LP4E with a second-generation synthesizer—allow coherent extension, but require careful matching of loop dynamics and divider ratios to avoid regenerative instability.
What impact does loop filter component tolerance have on lock time and settling behavior when implementing a custom loop filter for the HMC703LP4E?
Loop filter resistors and capacitors directly affect damping factor and natural frequency; deviations greater than ±5% can shift the dominant pole location by more than 20%, increasing lock time by up to 50% or causing overshoot during frequency transitions. For fast-hopping radar or communication systems requiring sub-microsecond settling, precision metal-film resistors (1%) and NP0/C0G capacitors (2%) are essential. Simulation using the device’s published transfer function model with actual parasitic values yields more accurate predictions than idealized calculations.
How should the HMC703LP4E be configured to minimize reference spurs when synthesizing a 4.995GHz signal from a 10MHz reference in a dense urban wireless infrastructure application?
Enable sigma-delta modulator with sufficient spreading (typically ≥16-bit order) to randomize quantization noise, and set the feedback divider ratio such that the delta-sigma accumulator wraps evenly across multiple cycles relative to the reference. For a 4.995GHz output from 10MHz, this implies a division ratio of 499.5, achievable via a 999/2 prescaler configuration. Also ensure the reference buffer is driven with a clean source (<1dBc spur level) and the charge pump current matches the loop filter impedance profile to avoid gain mismatch-induced spurs.
Does the HMC703LP4E support dynamic frequency changes without reconfiguring registers, and how does this affect phase continuity during channel switching?
The HMC703LP4E supports dynamic updates via SPI with minimal latency (<50ns), allowing frequency jumps without register reload delays. However, abrupt changes can induce transient phase discontinuities if the loop bandwidth exceeds half the update rate. To preserve phase continuity, implement linear frequency ramps using fractional-N stepping with delta-sigma modulation and pre-load the new divider value before asserting the update strobe. This ensures seamless transition even at modulation rates up to 1MHz.
What is the expected output swing and drive capability of the HMC703LP4E CMOS outputs when driving a 50Ω load at 6GHz?
The CMOS outputs provide rail-to-rail swing (±Vdd/2 differential) with typical peak-to-peak amplitude of 1.8V when powered at 3.3V. With a 50Ω termination, the output current capability is sufficient to maintain rise/fall times below 30ps up to 6GHz, assuming proper impedance matching. Exceeding the recommended capacitive load (>10pF combined input capacitance and PCB parasitics) degrades slew rate and increases eye closure at high data rates, necessitating series termination resistors close to the driver.
How does the HMC703LP4E perform in environments with high electromagnetic interference (EMI), and what enclosure grounding strategy minimizes radiated emissions?
As a digital-intensive IC, the HMC703LP4E generates conducted and radiated noise primarily at harmonic frequencies of its switching activity. Effective shielding requires the 24-QFN package’s exposed pad grounded to a continuous copper pour connected via multiple thermal vias to the system chassis. Additionally, route high-speed digital traces orthogonal to analog sections, use ferrite beads on supply lines entering sensitive blocks, and place guard rings around the RF output path to contain near-field coupling, reducing emissions by >15dB in typical lab measurements.
Can the HMC703LP4E operate with a non-standard reference clock polarity, and how does this affect SPI interface compatibility?
Yes, the HMC703LP4E accepts both rising-edge and falling-edge triggered reference clocks through programmable control bits in the configuration register. However, the SPI interface always uses positive-edge capture for data, regardless of reference polarity settings. Mismatched clock phases between reference input and SPI clock may cause metastability in internal state machines, so ensure both clocks share the same domain or use asynchronous FIFO buffers when crossing domains, particularly in FPGA co-designs.
What precautions are necessary to prevent latch-up when hot-plugging boards containing the HMC703LP4E in industrial automation systems?
Latch-up risk increases with voltage transients during insertion. Implement TVS diodes on all I/O pins rated for ±15kV ESD, limit inrush current with soft-start circuitry on the 2.7V–5.5V supply, and ensure all digital inputs are pulled to valid logic levels via 10kΩ resistors before power stabilization. The HMC703LP4E itself includes protection diodes, but external clamping remains essential in harsh environments where inductive kickback or electrostatic discharge events occur frequently.
How does the HMC703LP4E compare to the HMC703LP3 in terms of power consumption and pin compatibility for existing designs?
The HMC703LP4E consumes approximately 20mW less static power than the HMC703LP3 due to improved process node efficiency, despite identical functionality. Both share the same 24-pin QFN footprint and pinout, enabling drop-in replacement in most layouts. However, the LP4E variant omits a dedicated test pin present in the LP3, so verify test access requirements before substituting. Thermal performance is slightly better in the LP4E, reducing junction temperature by ~5°C under full load at 85°C ambient.
What is the significance of the Moisture Sensitivity Level 1 classification for the HMC703LP4E, and how does it affect manufacturing handling?
MSL 1 indicates unlimited shelf life under dry packaging conditions, meaning the HMC703LP4E does not require bake-out prior to reflow soldering. This simplifies assembly logistics and reduces cycle time in high-volume production, especially beneficial for aerospace and defense contracts where extended storage periods are common. Nevertheless, standard IPC Class 3 handling protocols still apply to ensure reliability during automated pick-and-place operations.
How can the HMC703LP4E be used to generate a 12.56GHz intermediate frequency (IF) signal from a 10MHz reference for a microwave downconverter?
Set the feedback divider to 1256 using integer mode (e.g., divide-by-1256), select CMOS output, and ensure the reference input drives the REFCLK pin with adequate slew rate. At 12.56GHz, verify that the output meets minimum swing specifications and that the loop bandwidth is optimized for phase noise vs. settling speed. Given the upper frequency limit of 8GHz, note that direct generation of 12.56GHz is not feasible; instead, use an external mixer or frequency doubler post-synthesis, ensuring the HMC703LP4E only contributes the base synthesized tone within its 8GHz capability.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. HMC703LP4E

Product Attribute HMC703LP4ETR HMC704LP4E HMC7043LP7FE HMC7043LP7FETR
Part Number HMC703LP4ETR HMC704LP4E HMC7043LP7FE HMC7043LP7FETR
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Differential - Input:Output - - - -
Divider/Multiplier - - - -
Type - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Voltage - Supply - - - -
Ratio - Input:Output - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
PLL - - - -
Series - - - -
Frequency - Max - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Input - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Number of Circuits - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Output - - - -
Mounting Type - Surface Mount Through Hole Surface Mount

HMC703LP4E Datasheet PDF

Download HMC703LP4E pdf datasheets and Analog Devices Inc. documentation for HMC703LP4E - Analog Devices Inc..

Datasheets
HMC703LP4E.pdf
PCN Other
2.73KHz.pdf
PCN Assembly/Origin
2.73KHz.pdf
PCN Obsolescence/ EOL
Cylindrical Battery Holders.pdf

Customers Also Interested in

Recommended Products

Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

Write a Review

Your Email address will not be published.

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
Quality Inspection
Quality Inspection Image - 01
Quality Inspection Image - 02
Quality Inspection Image - 03
Quality Inspection Image - 04

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.
  • HKBea
  • Paypal
  • MasterCard
  • Western-Union
  • VISA
Stable Delivery, Sincere Partnership — Your Faithful Supply Chain Partner
  • Efficient Supply Management
  • Cost-Saving Procurement
  • Fast Sourcing & Delivery
Contact us if you have any questions.

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA
HMC703LP4E Image

HMC703LP4E

Analog Devices Inc.
32D-HMC703LP4E

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

Allelco
About Us
History
Certifications
Recruitment
Policies
Terms & Conditions
Privacy Policy
Cookie Policy
Services
Order Tracking
Return & Replacement
Frequently Asked Questions
Contact Us
Order
Shipping & Delivering
Payment Methods
My Account
The BlogsHot PartsChange LanguageNewsSite map
Contact Us
Headquarters Address:
Room C 13/F Harvard Commercial Building
105-111 Thomson Road Wan Chai
HongKong
Service Tel: +852-91464856
Service Email: info@allelco.com
Follow us
Copyright © 2012-2025 AllelcoElec.com. All rights reserved.
0 RFQ
Shopping cart (0 Items)
It is empty.
Submit RFQ
Compare List (0 Items)
It is empty.
Feedback

Your feedback matters! At Allelco, we value the user experience and strive to improve it constantly.
Please share your comments with us via our feedback form, and we'll respond promptly.
Thank you for choosing Allelco.

Subject
E-mail
Comments
Captcha
Drag or click to upload file
Upload File
types: .xls, .xlsx, .doc, .docx, .jpg, .png and .pdf.
Max file size: 10MB