公开(公告)号：WO1994003981A1

公开(公告)日：1994-02-17

申请号：PCT/US1993006414

申请日：1993-07-08

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  WALDIE, William, T. ,  HECK, Joseph, P.

IPC: H04B01/16

CPC classification number: H04B1/40 ,  H03J7/065 ,  H04B1/405

Abstract: A radio (100) having a combined phase locked loop (PLL) (207) and an automatic frequency control (AFC) loop (215, 109, 111) and method of operating the same. A mixer (201) converts the received RF signal (117) to an intermediate frequency (IF) signal (219) responsive to an injection signal (217). The PLL (207) locks the injection signal (217) to the received RF signal (117) responsive to a reference signal (119). The AFC loop (215, 109, 111) locks the reference signal (119) to the received RF signal (117) responsive to the injection signal (217).

Abstract translation: 具有组合锁相环（PLL）（207）和自动频率控制（AFC）环路（215,109,111）的无线电装置（100）及其操作方法。 混合器（201）响应于注入信号（217）将接收的RF信号（117）转换为中频（IF）信号（219）。 响应于参考信号（119），PLL（207）将注入信号（217）锁定到接收的RF信号（117）。 响应于喷射信号（217），AFC回路（215,109,111）将参考信号（119）锁定到接收的RF信号（117）。