发明名称 |
Radio-frequency signal generator |
摘要 |
A radio-frequency signal generator has a voltage-controlled oscillator for producing a radio-frequency signal. A frequency divider with a fixed division ratio has an input connected to the voltage-controlled oscillator and an output supplying a first clock signal. A first accumulator aggregates a first reference signal under the control of the first clock signal. A second accumulator aggregates a second reference signal under the control of a second clock signal. The aggregated signals are subtracted from one another, filtered through a digital filter, weighted and subsequently converted into an analog signal. The analog signal is filtered by an analog filter and fed to the voltage-controlled oscillator.
|
申请公布号 |
US6046643(A) |
申请公布日期 |
2000.04.04 |
申请号 |
US19980107356 |
申请日期 |
1998.06.30 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
KRANZ, CHRISTIAN |
分类号 |
H03L7/06;H03C3/09;H03L7/107;H03L7/14;H03L7/16;H03L7/18;H04L27/20;(IPC1-7):H03L7/093 |
主分类号 |
H03L7/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|