JPH02150820U - - Google Patents
Info
- Publication number
- JPH02150820U JPH02150820U JP6002989U JP6002989U JPH02150820U JP H02150820 U JPH02150820 U JP H02150820U JP 6002989 U JP6002989 U JP 6002989U JP 6002989 U JP6002989 U JP 6002989U JP H02150820 U JPH02150820 U JP H02150820U
- Authority
- JP
- Japan
- Prior art keywords
- phase comparator
- pulse
- current
- transistor
- circuit
- 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
- 239000002131 composite material Substances 0.000 claims 2
- 230000001360 synchronised effect Effects 0.000 claims 1
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Manipulation Of Pulses (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Amplifiers (AREA)
Description
第１図は本考案の位相比較器の出力パルス差動
増幅回路の一実施例を示す回路図、第２図は従来
の位相比較器の出力パルス差動増幅回路の一例を
示す回路図である。
１……位相比較器（ＣＭＰ）、２……複合トラ
ンジスタ（ＨＴＲ）、３……可変抵抗器（ＲＶ）
、４……低域ろ波器（ＬＰＦ）、５……電圧制御
発振器（ＶＣＯ）、６……定電流回路（ＣＣＲ）
、Ｃ……コンデンサ、Ｄ……ダイオード、Ｒ……
抵抗、ＴＲ……トランジスタ、Ｖ１，Ｖ２……電
源電圧。
FIG. 1 is a circuit diagram showing an embodiment of the output pulse differential amplification circuit of the phase comparator of the present invention, and FIG. 2 is a circuit diagram showing an example of the output pulse differential amplification circuit of the conventional phase comparator. . 1... Phase comparator (CMP), 2... Complex transistor (HTR), 3... Variable resistor (RV)
, 4...Low pass filter (LPF), 5...Voltage controlled oscillator (VCO), 6... Constant current circuit (CCR)
, C... Capacitor, D... Diode, R...
Resistor, TR...Transistor, V1 , V2 ...Power supply voltage.
Claims (1)
較器からのパルスを作動増幅させる複合トランジ
スタのエミツタ出力にダイオードを用いた定電流
回路をベース電流とするトランジスタを接続して
なり、前記複合トランジスタのコレクタからロー
パスフイルタへの電流を一定にすることを特徴と
する位相比較器の出力パルス差動増幅回路。 In a pulse stuffing synchronous circuit, a transistor whose base current is a constant current circuit using a diode is connected to the emitter output of a composite transistor that operationally amplifies the pulse from the phase comparator, and the collector of the composite transistor is connected to a low-pass filter. A phase comparator output pulse differential amplifier circuit characterized in that the current of the phase comparator is kept constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6002989U JPH02150820U (en) | 1989-05-23 | 1989-05-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6002989U JPH02150820U (en) | 1989-05-23 | 1989-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02150820U true JPH02150820U (en) | 1990-12-27 |
Family
ID=31587037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6002989U Pending JPH02150820U (en) | 1989-05-23 | 1989-05-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02150820U (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50104549A (en) * | 1974-01-18 | 1975-08-18 | ||
| JPS53129947A (en) * | 1977-04-19 | 1978-11-13 | Nec Corp | Temperature compensated amplifier |
| JPS546045B2 (en) * | 1976-06-03 | 1979-03-24 | ||
| JPS5820045A (en) * | 1981-07-30 | 1983-02-05 | Fujitsu Ltd | Staff synchronizing system |
-
1989
- 1989-05-23 JP JP6002989U patent/JPH02150820U/ja active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50104549A (en) * | 1974-01-18 | 1975-08-18 | ||
| JPS546045B2 (en) * | 1976-06-03 | 1979-03-24 | ||
| JPS53129947A (en) * | 1977-04-19 | 1978-11-13 | Nec Corp | Temperature compensated amplifier |
| JPS5820045A (en) * | 1981-07-30 | 1983-02-05 | Fujitsu Ltd | Staff synchronizing system |