ADF4382ABCCZ datasheet(1/70 Pages) AD

Part #	ADF4382ABCCZ

Description	Microwave Wideband Synthesizer with Integrated VCO

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Data Sheet

ADF4382A

Microwave Wideband Synthesizer with Integrated VCO

Rev. 0

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change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and

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FEATURES

►

Fundamental output frequency range: 11.5 GHz to 21 GHz

►

Divide by 2 output frequency range: 5.75 GHz to 10.5 GHz

►

Divide by 4 output frequency range: 2.875 GHz to 5.25 GHz

►

Integrated RMS jitter at 20 GHz = 20 fs (integration bandwidth:

1

00 Hz to 100 MHz)

►

Integrated RMS jitter at 20 GHz = 31 fs (ADC SNR method)

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VCO autocalibration time < 100 μs

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Phase noise floor: −156 dBc/Hz at 20 GHz

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PLL specifications

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−239 dBc/Hz: normalized in-band phase noise floor

►

−287 dBc/Hz: normalized 1/f phase noise floor

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625 MHz maximum phase/frequency detector input frequency

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4.5 GHz reference input frequency

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Typical spurious fPFD: −90 dBc

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Reference to output delay specifications

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Propagation delay temperature coefficient: 0.06 ps/°C

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Adjustment step size: <1 ps

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Multichip output phase alignment

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3.3 V and 5 V power supplies

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ADIsimPLLTM loop filter design tool support

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7 mm × 7 mm, 48-terminal LGA

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−40°C to +105°C operating temperature

APPLICATIONS

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High performance data converter clocking

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Wireless infrastructure (MC-GSM, 5G, 6G)

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Test and measurement

GENERAL DESCRIPTION

The ADF4382A is a high performance, ultralow jitter, fractional-N

phased-locked loop (PLL) with an integrated voltage controlled

oscillator (VCO) ideally suited for local oscillator (LO) generation

for 5G applications or data converter clock applications. The high

performance PLL has a figure of merit of −239 dBc/Hz, low 1/f

noise and high PFD frequency of 625 MHz in integer mode that can

achieve ultralow in-band noise and integrated jitter. The ADF4382A

can generate frequencies in a fundamental octave range of 11.5

GHz to 21 GHz, thereby eliminating the need for subharmonic

filters. The divide by 2 and divide by 4 output dividers on the

ADF4382A allow frequencies to be generated from 5.75 GHz to

10.5 GHz and 2.875 GHz to 5.25 GHz, respectively.

For multiple data converter clock applications, the ADF4382A auto-

matically aligns its output to the input reference edge by including

the output divider in the PLL feedback loop. For applications that re-

quire deterministic delay or delay adjustment capability, a program-

mable reference to output delay with <1 ps resolution is provided.

The reference to output delay matching across multiple devices and

over temperature allows predictable and precise multichip clock and

system reference (SYSREF) alignment.

The simplicity of the ADF4382A block diagram eases development

time with a simplified serial peripheral interface (SPI) register map,

repeatable multichip clock alignment, and limiting unwanted clock

spurs by allowing off-chip SYSREF generation.

FUNCTIONAL BLOCK DIAGRAM

Figure 1. ADF4382A Functional Block Diagram

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