The HMC835LP6GE is a Clock/Timing - Clock Generators, PLLs, Frequency SynthesizersIC designed and manufactured by Analog Devices, Inc., as a part of their Integrated Circuits (ICs).
The HMC835LP6GE features an QFN package type—Similar to BGA but with no exposed leads.
The component is no longer in production and may be challenging to find.