发明名称 |
Lage-ruis frequentiemodulator met variabele dragerfrequentie. |
摘要 |
A frequency modulator having variable carrier frequency is provided. A VCO frequency-modulates an oscillator input signal using an oscillation frequency set by a set signal as the carrier frequency. A phase/frequency detector outputs phase and frequency differences between a VCO output signal and a reference signal. A filter receives a phase/frequency detector output and generates the set signal. An amplifier generates a pair of output signals whose voltage levels change in opposite directions. A compensation circuit changes the voltage levels of the output signal pair and provides resulting signals to the VCO as the oscillator input signal. |
申请公布号 |
NL1017824(A1) |
申请公布日期 |
2002.03.01 |
申请号 |
NL20011017824 |
申请日期 |
2001.04.11 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
JAE-HO PARK |
分类号 |
H03D7/18;H03C3/09;H04N5/40;(IPC1-7):H03C3/09 |
主分类号 |
H03D7/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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