JPS6469123A - Phase control circuit - Google Patents
Phase control circuitInfo
- Publication number
- JPS6469123A JPS6469123A JP62226916A JP22691687A JPS6469123A JP S6469123 A JPS6469123 A JP S6469123A JP 62226916 A JP62226916 A JP 62226916A JP 22691687 A JP22691687 A JP 22691687A JP S6469123 A JPS6469123 A JP S6469123A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- circuit
- relation
- detecting
- signal
- 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
- Television Signal Processing For Recording (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
PURPOSE:To attain phase locking of a PLL circuit in a short time by providing a phase relation detecting circuit detecting the relation of phase of a data input signal and a phase variable circuit varying the phase of an output signal of a voltage controlled oscillation circuit. CONSTITUTION:The phase relation detection circuit 26 detecting the relation of phase between output signals C', C and a data input signal (d) of a voltage controlled oscillator circuit 20 and a phase variable circuit SW1 varying the phase of the input signals C, C' to the phase comparator circuit 16 by the circuit 26 are provided. That is, the circuit 26 detects the phase difference between the data signal (d) and the clock signal to switch the switch SW1 in a way that the phase difference of both the signals is eliminated (or the phase difference is in a prescribed relation). Thus, the phase of the input signal C given to the phase comparator circuit 16 is set to a value close to the phase at the phase locking, then the phase locking is quickened.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62226916A JPS6469123A (en) | 1987-09-10 | 1987-09-10 | Phase control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62226916A JPS6469123A (en) | 1987-09-10 | 1987-09-10 | Phase control circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6469123A true JPS6469123A (en) | 1989-03-15 |
Family
ID=16852610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62226916A Pending JPS6469123A (en) | 1987-09-10 | 1987-09-10 | Phase control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6469123A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04271634A (en) * | 1991-02-27 | 1992-09-28 | Sanyo Electric Co Ltd | Interface circuit and phase locked loop used therefor |
-
1987
- 1987-09-10 JP JP62226916A patent/JPS6469123A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04271634A (en) * | 1991-02-27 | 1992-09-28 | Sanyo Electric Co Ltd | Interface circuit and phase locked loop used therefor |
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