公开(公告)号：US11979118B2

公开(公告)日：2024-05-07

申请号：US17455009

申请日：2021-11-15

Applicant: DSP Group Ltd.

Inventor： Steve Anderson

IPC: H03M1/10 ,  H03F3/21

CPC classification number: H03F3/211 ,  H03M1/1009 ,  H03F2200/451

Abstract: There is provided a RF-DAC that may include (i) a first PAM that includes a first group of first power amplifiers of different amplifications, (ii) a second PAM that includes a second group of second power amplifiers of different amplifications; (iii) a load that includes an output port and a transformer; (iv) power amplifiers control units, and a transformer control unit. During a cycle of operation (i) each one of the first and second PAMs is configured to receive one or more power amplifiers digital control signals and activate a single power amplifier per each of the first and second PAMS, (ii) the transformer control unit is configured to receive a transformer digital control signal and control a transformer parameter of the transformer, and (iii) the transformer is configured to receive a first PAM output signal and a second PAM output signal, and output a transformer output signal that reflects digital information represented by the one or more power amplifiers digital control signals and the transformer digital control signal.