JPS54106774A - Phase synchronization loop - Google Patents
Phase synchronization loopInfo
- Publication number
- JPS54106774A JPS54106774A JP1353278A JP1353278A JPS54106774A JP S54106774 A JPS54106774 A JP S54106774A JP 1353278 A JP1353278 A JP 1353278A JP 1353278 A JP1353278 A JP 1353278A JP S54106774 A JPS54106774 A JP S54106774A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- filter
- phase
- output
- comparator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Feedback Control In General (AREA)
Abstract
PURPOSE: To remove high-frequency components from a reference signal and eliminate its lag due to a filter, by inserting AC filters of equal characteristics into a phase reference circuit and a feedback circuit, respectively.
CONSTITUTION: The output e2 of a phase comparator (PHD) 1, which takes the exclusive OR of the rectangular-wave phase reference signal e0 with an output signal e7, is averaged by a loop filter 2 and then supplied to a voltage control oscillator (VCO) 3. The output of the oscillator 3 is detected through a frequency divider 4. A signal e4 which serves as a reference for such a system contains high- frequency components. These components are removed from the signal e4 by an AC filter 5. The signal e4 is shaped to a rectangular-wave signal by a comparator 6. The phase of the signal e4 is delayed by the AC filter. To compensate the phase delay, an AC filter 7 of the same frequency characteristics as the AC filter 5 and a comparator 8 are inserted into the feedback line of the output signal.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1353278A JPS54106774A (en) | 1978-02-10 | 1978-02-10 | Phase synchronization loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1353278A JPS54106774A (en) | 1978-02-10 | 1978-02-10 | Phase synchronization loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54106774A true JPS54106774A (en) | 1979-08-22 |
Family
ID=11835761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1353278A Pending JPS54106774A (en) | 1978-02-10 | 1978-02-10 | Phase synchronization loop |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54106774A (en) |
-
1978
- 1978-02-10 JP JP1353278A patent/JPS54106774A/en active Pending
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