HMC833LP6GE datasheet(13/61 Pages) HITTITE

13 / 61 page

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HMC833LP6GE

v01.1012

FRACTIONAL-N PLL WITH INTEGRATED VCO

25 - 6000 MHz

HMC833LP6GE Application Information

Large bandwidth (25 MHz to 6000 MHz), industry leading phase noise and spurious performance, excellent noise floor

(<-170 dBc/Hz), coupled with a high level of integration make the HMC833LP6GE ideal for a variety of applications; as

an RF or IF stage LO, a clock source for high-frequency data-converters, or a tunable reference source for extremely

low spurious applications (< -100 dBc/Hz spurs).

Figure 27. HMC833LP6GE in a typical transmit chain

Figure 28. HMC833LP6GE in a typical receive chain

Figure 29. HMC830LP6GE used as a tunable reference for HMC833LP6GE

Using the HMC833LP6GE with a tunable reference as shown in Figure 25, it is possible to drastically improve spurious

emissions performance across all frequencies. Example shown in Figure 20 graph shows that it is possible to have

spurious emissions < -100 dBc/Hz across all frequencies. For more information about spurious emissions, how they

are related to the reference frequency, and how to tune the reference frequency for optimal spurious performance

please see the “Fractional Operation and Spurious” section of this data sheet. Note that at very low output frequencies

< 100 MHz, harmonics increase due to small internal AC coupling. Applications which are sensitive to harmonics may

require external low pass filtering.

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