JPS575423A - Digital variable phase shifter - Google Patents
Digital variable phase shifterInfo
- Publication number
- JPS575423A JPS575423A JP8060780A JP8060780A JPS575423A JP S575423 A JPS575423 A JP S575423A JP 8060780 A JP8060780 A JP 8060780A JP 8060780 A JP8060780 A JP 8060780A JP S575423 A JPS575423 A JP S575423A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- terminal
- counter
- phase
- programmable counter
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/08—Networks for phase shifting
Landscapes
- Filters That Use Time-Delay Elements (AREA)
Abstract
PURPOSE:To accomplish an arbitrary amount of phase shift in an arbitrary step by digital control, by using a phase locked loop (PLL) and a counter. CONSTITUTION:A signal applied to an input terminal 1 is respectively given to a PLL circuit 2, phase comparator 3, set terminal S of an FF7 and load terminal L of a programmable counter 8, and a signal multiplying the input signal by N, where the frequency dividing ratio of a frequency divider 6 is N, is applied as a clock to a clock terminal CLK of the programmable counter 8 from a VCO 5. Further, an output at a termnal Q of the FF7 is applied to an enable terminal E of the programmable counter 8 and the output signal is applied to a reset terminal R of the FF7. When a control signal S1 sets the frequency dividing ratio of the frequency divider 6 as N and a control signal S2 sets the number of counts of te counter 8 as M, the signal phase is (360XM/N).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8060780A JPS575423A (en) | 1980-06-14 | 1980-06-14 | Digital variable phase shifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8060780A JPS575423A (en) | 1980-06-14 | 1980-06-14 | Digital variable phase shifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS575423A true JPS575423A (en) | 1982-01-12 |
Family
ID=13723010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8060780A Pending JPS575423A (en) | 1980-06-14 | 1980-06-14 | Digital variable phase shifter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS575423A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0780975A1 (en) * | 1995-12-21 | 1997-06-25 | HE HOLDINGS, INC. dba HUGHES ELECTRONICS | Precision digital phase shifter |
-
1980
- 1980-06-14 JP JP8060780A patent/JPS575423A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0780975A1 (en) * | 1995-12-21 | 1997-06-25 | HE HOLDINGS, INC. dba HUGHES ELECTRONICS | Precision digital phase shifter |
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