CHT4690-QAG Datasheet, PDF (12/14 Pages) United Monolithic Semiconductors – 5-30GHz ATTENUATOR

5-30GHz Attenuator
CHT4690-QAG
(For production, design must be adapted with regard to PCB tolerances and
assembly process)
Basic footprint for a 16L-QFN3x3 (all units mm)
(Please, refer to the UMS proposed footprint for optimum
operation in the following “Proposed Assembly board” section)
The RF ports are DC blocked on chip. The DC connections (V1,V2) do not include any
decoupling capacitor in package, therefore it is mandatory to provide a good external DC
decoupling on the PC board, as close as possible to the package.
SMD mounting procedure
The SMD leadless package has been designed for high volume surface mount PCB
assembly process. The dimensions and footprint required for the PCB (motherboard) are
given in the drawings above.
For the mounting process standard techniques involving solder paste and a suitable reflow
process can be used. For further details, see application note AN0017.
Ref. : CHT4690QAG6332 - 28 Nov 06
12/14
Specifications subject to change without notice
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