Low power loss digital frequency synthetizing method for mobile communication
Title：
Low power loss digital frequency synthetizing method for mobile communication
Application Number：
 200410008787
Application Date：
 2004/03/19
Announcement Date：
 2005/01/12
Pub. Date：
Publication Number：
 1564469
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H03L 7/08, H04B 1/40, H04Q 7/32
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Li Jincheng, Yang Huazhong, Luo Rong
Key Words：
 Low power loss, digital frequency, synthetizing method, mobile communication
Abstract：
 The method include steps: carrying out phase accumulation for phase increment of controlling combination frequency, taking m bits from accumulated result as output phase; removing out most significant bit in output phase, generating sampled value in sine wave corresponding to remnant phase through logic method; carrying out D/A conversion with sign for generated sampled values by using most significant bit of phase outputted as control signal. The invention reduces power consumption of memory, and complement arithmetic from absolute value to negative value. Thus, area and power consumption of circuit is reduced.
Claim：
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PCT：
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