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For RF3146 I designed an EVB (as RFMD datasheet) and was working very nice.
On the mobile board check to have enough thermal vias under the PA (follow the EVB layout) and be careful with Vbat capacitor ground.
Also be careful with DC trace from Battery connector to Vbat pin. At maximum output power in GSM, the DC drop on this trace shall be less than 50mV.
vfone , thanks for ur advice . I think you must be a RF expert on phone design , and you gave many helpful suggestion and advice on i ever questioned on this web . Do you mind if you could leave a email address , so i can consult you something about Rf design in the future., thanks. for not opening your personal message , you could send your email address to my mailbox ( brian39@citiz.net).
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