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The 8V19N882NVGI8 is a fully integrated FemtoClock® RF sample clock generator and jitter attenuator, a high-performance clocking solution for conditioning and frequency/phase management of wireless base station radio equipment boards. The device is optimised to provide excellent phase noise performance to meet the requirements of 4G, 5G, and radio (including millimetre wave) implementations.

The device supports JESD204B (subclasses 0 and 1) and JESD204C. The two-stage PLL architecture supports jitter attenuation and frequency doubling. The first PLL stage is a jitter attenuator that uses an external VCXO to achieve optimal phase noise characteristics. The second-stage PLL locks the first PLL output signal and synthesises the target frequency. The second stage PLL can use either an internal or external high frequency VCO.

Features

High-performance clock RF sampling clock generator and clock jitter attenuator supporting JESD204B/C

Low phase noise: -144.7dBc/Hz (800kHz offset; 491.52MHz)

Integral phase noise: 74fs RMS (12kHz-20MHz, 491.52MHz)

Dual PLL architecture with internal and optional external VCOs

8 output channels for a total of 16 outputs

Configurable integer clock divider

Clock output frequency: up to 3932.16MHz (internal VCO) and 6GHz (optional external VCO)

Differential, low-noise I/O

Deterministic phase delay and integrated phase delay circuitry

Redundant input clock architecture with two inputs and monitor, as well as hold and input switching functions

SPI 3/4-wire configuration interface

Supply voltages: 1.8V, 2.5V, and 3.3V

Package: 76-VFQFN (9 × 9 mm²)

Temperature range: -40°C to +105°C

Applications

Wireless infrastructure applications: 4G, 5G and millimetre wave

Data acquisition: jitter-sensitive ADC and DAC circuits

Radar, imaging, instrumentation and medical

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