发明名称 |
Fractional-N synthesizer having modulation spur compensation |
摘要 |
A synthesizer circuit with spur compensation utilizes fractional division in the synthesizer loop. The fractional divider includes means for compensating the spurs when the fractional numerator N=0. The synthesizer includes means for selecting a reference divisor R such that a non zero value of fractional numerator is produced and such that the generated spurs fall below the side band noise limits of the synthesizer's voltage controlled oscillator.
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申请公布号 |
US5021754(A) |
申请公布日期 |
1991.06.04 |
申请号 |
US19900553472 |
申请日期 |
1990.07.16 |
申请人 |
MOTOROLA, INC. |
发明人 |
SHEPHERD, WAYNE P.;DAVIS, DARRELL E.;TAY, WAN F. |
分类号 |
H03C3/00;H03C3/09;H03L7/183;H03L7/197 |
主分类号 |
H03C3/00 |
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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