发明名称 |
Frequency and phase lock loop with separated AFC and phase locking |
摘要 |
A frequency and phase lock loop is disclosed in which AFC and phase locking functions are completely separated thus permitting signal acquisition range and closed loop bandwidth parameters to be independently established. Interference between phase lock loop (PLL) and automatic frequency control (AFC) signals resulting in the loss of a beat frequency signal for matching VCO and reference signal frequencies is eliminated thus affording enhanced PLL frequency pull-in range.
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申请公布号 |
US4347483(A) |
申请公布日期 |
1982.08.31 |
申请号 |
US19800172920 |
申请日期 |
1980.07.28 |
申请人 |
ZENITH RADIO CORPORATION |
发明人 |
FLASZA, MICHAEL D.;RYPKEMA, JOUKE N. |
分类号 |
H03L7/087;H03L7/10;(IPC1-7):H03L7/10 |
主分类号 |
H03L7/087 |
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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