Overview
Product Details
The evaluation board uses 4-layer construction with a copper thickness of 0.5 oz (0.7 mil) and dielectric materials between each copper layer.
All RF traces are routed on Layer 1 and all other remaining
layers are grounded planes that provide a solid ground for RF
transmission lines. The top dielectric material are Rogers 4350,
offering low loss performance. The prepreg material in the
middle is used to stick core layers together, which are RoHS
compliant ISOLA 370HR layer with copper traces above and
below. Both prepreg and the ISOLA 370HR core layer are used
to achieve the required board finish thickness.
The RF transmission lines were designed using a coplanar
waveguide (CPWG) model with a width of 18 mil and ground
spacing of 13 mil for a characteristic impedance of 50 Ω. For
optimal RF and thermal grounding, as many plated through
vias as possible are arranged around the transmission lines and
under the exposed pad of the package.
Since the HMC1048ALC3B is a
passive device, there is no requirement for external
components. The LO and RF pins are internally ac-coupled.
The IF pin is internally dc-coupled. Use an external series
capacitor when IF operation is not required. Choose a value
that stays within the necessary IF frequency range. When IF
operation to dc is required, do not exceed the IF source and
sink current rating specified in the Absolute Maximum Ratings
section.
Markets and Technologies
Applicable Parts
Documentation & Resources
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HMC1048A Gerber Files12/11/2017ZIP222 K