Skip to main content
Log in
Analog Devices ADF4218BRU-REEL — Clock & Timing ICs

ADF4218BRU-REEL PLL Frequency Synthesizer, 3 GHz, 20-TSSOP

MPNADF4218BRU-REEL
End of Life

Analog Devices ADF4218BRU-REEL, PLL frequency synthesizer, 3 GHz max, CMOS/TTL input, clock output, 2.7 V to 5.5 V supply, -40°C to 85°C, 20-TSSOP, bulk.

$4.8Ref. price · indicative, final on quote
Analog Devices ADF4218BRU-REEL datasheet (PDF)
Packaging20-TSSOP (0.173", 4.40mm Width)
RoHSRoHS non-compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ADF4218BRU-REEL specifications
ParameterValue
TypeFrequency Synthesizer
MountingSurface Mount
Voltage2.7V ~ 5.5V
Frequency3GHz
Operating temperature-40°C ~ 85°C
PLLYes
InputCMOS, TTL
OutputClock
PackageBulk
Case20-TSSOP (0.173\", 4.40mm Width)
Divider (Multiplier)Yes/No
Ratio - Input:Output3:1
Differential - Input:OutputYes/No

Product details

3 GHz PLL in a 20-TSSOP — RF local-oscillator workhorse

The ADF4218BRU-REEL is a PLL frequency synthesizer from Analog Devices that generates clock outputs up to 3 GHz from CMOS or TTL reference inputs. It integrates a phase detector, charge pump, and programmable dividers in a 20-pin TSSOP package, making it a compact choice for RF local-oscillator generation in wireless infrastructure, test equipment, and satellite downconverters. The 3:1 input-to-output ratio and differential output option give flexibility in single-ended or balanced LO distribution.

Operating from 2.7 V to 5.5 V, this PLL can run directly from a 3.3 V or 5 V rail without an extra regulator. If your design lives in a controlled indoor environment, the industrial rating still gives margin on phase-noise drift over temperature.

RoHS non-compliant — leaded finish, legacy process

Any production line that must meet RoHS directives — or any EU-market product without an explicit exemption — cannot use this part. For legacy builds or repair depots that still run tin-lead reflow, the leaded finish is actually preferred for reliability on older board finishes.

Frequently asked questions

Is ADF4218BRU-REEL RoHS compliant?

No, the ADF4218BRU-REEL is RoHS non-compliant. It uses a leaded solder finish. If your production requires RoHS compliance, you will need an exemption or a different part number.

What is the frequency range of ADF4218BRU-REEL?

The ADF4218BRU-REEL operates as a PLL frequency synthesizer with a maximum output frequency of 3 GHz. The input accepts CMOS or TTL reference signals.

Is ADF4218BRU-REEL compatible with 3.3V systems?

Yes, the supply voltage range of 2.7 V to 5.5 V includes 3.3 V. The part can run directly from a 3.3 V rail without a separate regulator.

What is the equivalent for ADF4218BRU-REEL?

The closest functional equivalent is the ADF4218BRU (without the -REEL suffix), which shares the same PLL architecture, 2.5 GHz max frequency, and 20-TSSOP package. The -REEL suffix indicates tape-and-reel packaging; the bare ADF4218BRU may ship in tube or tray. For a 3 GHz variant, consider the ADF4211BCP or ADF4210BCP, though those come in a different package (LFCSP).