ADF4401A

RECOMMENDED FOR NEW DESIGNS

Translation Loop, PLL, VCO Module

Data Sheet (Rev. 0) Product Selection Table

Part Models: 1
1ku List Price: Starting From $467.59

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Overview

RF output frequency range: 62.5 MHz to 8000 MHz
9 fs rms jitter at 8 GHz output
17 dBm IF output power at 6 GHz RF output
90 dBc LO_IN to RF output
90 dBc spurious-free dynamic range
Low phase noise, voltage controlled oscillator

Programmable divide by 1, 2, 4, 8, 16, 32, or 64 output
3.3 V analog, digital, and mixer power supplies
5 V amplifier and VCO power supply
RF output mute function
18.00 mm × 18.00 mm, 80-terminal LGA_CAV
Supported in the ADIsimPLL design tool

The ADF4401A is a fully integrated, system in package (SiP) translation loop (also known as an offset loop) module that includes a voltage controlled oscillator (VCO) and calibration phase-locked loop (PLL) circuit. Designed for highly jitter sensitive applications, this solution reduces board space and complexity compared to traditional discrete translation loop solutions designed on a printed circuit board (PCB). The time to market is significantly reduced by taking advantage of this highly integrated solution with in package circuitry and enhanced isolation that attenuates spurious components. The ADF4401A provides a frequency synthesis solution for engineers designing highly competitive systems.

The ADF4401A requires an external phase detector or phase frequency detector (PFD) and an external local oscillator (LO) to form a frequency synthesis solution.

The ADF4401A implements an integrated downconversion mixing stage in the feedback loop that sets the loop gain to 1 and minimizes the in band phase noise. By combining the frequency downconversion stage and low noise, integrated, wideband, VCO technology from Analog Devices, Inc., the ADF4401A offers a wideband jitter performance of 9 fs rms at 8 GHz output. The output jitter performance is largely dependent on the performance of the external offset LO.

The ADF4401A module uses an internal PFD and VCO calibration circuitry to select the appropriate VCO band. The user can disable the calibration circuitry and close the loop using the external PFD. All on-chip registers are controlled via a serial port interface (SPI).

APPLICATIONS

Instrumentation and measurement
Automated test equipment
Aerospace and defense

Part Models: 1
1ku List Price: Starting From $467.59

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADF4401ABCEZ	80-Terminal LGA_CAV (18mm x 18mm x 2.108 m)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Analog Switches & Multiplexers 2
ADG1608	PRODUCTION	4.5 Ω RON, 8-Channel ±5 V,+12 V, +5 V, and +3.3 V Multiplexer
ADG1609	PRODUCTION	4.5 Ω RON, 4-Channel ±5 V,+12 V, +5 V, and +3.3 V Multiplexer
Operational Amplifiers (Op Amps) 1
LT6200	PRODUCTION	165MHz, Rail-to-Rail Input and Output, 0.95nV/√Hz Low Noise, Op Amp Family
Phase-Locked Loop (PLL) Synthesizers 1
HMC3716	PRODUCTION	HBT Digital Phase Frequency Detector 10 - 1300 MHz

Evaluation Kits

Evaluating the ADF4401A Translation Loop, PLL, VCO Module

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Features and Benefits

Evaluation board including the ADF4401A SiP with integrated VCO, loop filter (5 MHz), phase frequency detector, USB interface, and voltage regulators
PC software for control of SiP functions
Externally powered by 6 V

Product Details

The EV-ADF4401ASD2Z evaluates the performance of the ADF4401A system in package (SiP) for offset phase-locked loops (PLLs). Figure 1 shows the evaluation board photograph. The EV-ADF4401ASD2Z contains the ADF4401A integrated SiP, phase frequency detector (PFD), active loop filter, power supply connectors, and Subminiature Version A (SMA) connectors.

The EV-ADF4401ASD2Z requires an EVAL-SDP-CS1Z (SDP-S) system demonstration platform (SDP), which allows software programming of the EV-ADF4401ASD2Z.

For full details on the ADF4401A, see the ADF4401A data sheet, which must be consulted in conjunction with the user guide when using the EV-ADF4401ASD2Z.

Resources

UG-1922: Evaluating the ADF4401A Translation Loop, PLL, VCO Module (Rev.0)
12/22/2020

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ADF4401A

Overview

Documentation

Data Sheet 1

User Guide 1

Technical Articles 3

Video 3

Product Selection Guide 1

Webcast 1