JPS621438U - - Google Patents
Info
- Publication number
- JPS621438U JPS621438U JP9177385U JP9177385U JPS621438U JP S621438 U JPS621438 U JP S621438U JP 9177385 U JP9177385 U JP 9177385U JP 9177385 U JP9177385 U JP 9177385U JP S621438 U JPS621438 U JP S621438U
- Authority
- JP
- Japan
- Prior art keywords
- vco
- pll circuit
- circuit
- inactivated
- phases
- 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
- 230000010355 oscillation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Description
第１図は、本考案の一実施例を示す回路図、第
２図はその具体回路例を示す回路図、及び第３図
はＰＬＬ回路を説明する為の回路図である。
主な図番の説明、１０……ミユーテイング回路
、１１……ＶＣＯ、１２……周波数制御部、１３
……固体共振子、１４……発振部、１６……検波
回路、１７……ミユーテイング解除回路。
FIG. 1 is a circuit diagram showing an embodiment of the present invention, FIG. 2 is a circuit diagram showing a specific circuit example thereof, and FIG. 3 is a circuit diagram for explaining a PLL circuit. Explanation of main drawing numbers, 10... Muting circuit, 11 ... VCO, 12... Frequency control section, 13
...Solid resonator, 14...Oscillating section, 16...Detection circuit, 17...Mumuting release circuit.
Claims (1)
れ、位相差に応じた制御信号により前記ＶＣＯの
発振周波数が制御されるＰＬＬ回路において、前
記ＶＣＯの周波数制御部を電源投入から所定時間
不作動にするミユーテイング回路を設けたことを
特徴とするＰＬＬ回路。 In a PLL circuit in which the phases of an input signal and an output signal of a VCO are compared and the oscillation frequency of the VCO is controlled by a control signal according to the phase difference, a frequency control section of the VCO is inactivated for a predetermined period of time after power is turned on. A PLL circuit characterized by being provided with a muting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9177385U JPS621438U (en) | 1985-06-18 | 1985-06-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9177385U JPS621438U (en) | 1985-06-18 | 1985-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS621438U true JPS621438U (en) | 1987-01-07 |
Family
ID=30647957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9177385U Pending JPS621438U (en) | 1985-06-18 | 1985-06-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS621438U (en) |
-
1985
- 1985-06-18 JP JP9177385U patent/JPS621438U/ja active Pending