JPS615012U - crystal oscillation circuit - Google Patents
crystal oscillation circuitInfo
- Publication number
- JPS615012U JPS615012U JP7187685U JP7187685U JPS615012U JP S615012 U JPS615012 U JP S615012U JP 7187685 U JP7187685 U JP 7187685U JP 7187685 U JP7187685 U JP 7187685U JP S615012 U JPS615012 U JP S615012U
- Authority
- JP
- Japan
- Prior art keywords
- mos inverter
- output
- crystal
- crystal oscillation
- oscillation 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
Landscapes
- Electric Clocks (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【図面の簡単な説明】
第１図、第２図・・・通常用いられる水晶発振回路。
１・・・Ｐチャンネルトランジスタ、２・・・Ｎチャン
ネルトランジスタ、Ｒｆ・・・帰還抵抗、ＲＤ・・・出
力抵抗、ＣＤ・・・出力容量、Ｘ’ｔａｌ・・・水晶振
動子、ＣＧ・・・入力容量、ＣＣ・・・ドレイン寄生容
量、６・・・分周回路、
第３図・・・インバータのβ （＝μ・ＣＯＸ−Ｗ／Ｌ
）とインバーダの位相差を表わす図である。
第４図・・・ドレイン電流のとゲート電圧ＶＧ（＝ＶＤ
；ドレイン電圧）示す図である。[Brief explanation of the drawings] Figures 1 and 2: Ordinarily used crystal oscillation circuits. 1...P channel transistor, 2...N channel transistor, Rf...feedback resistance, RD...output resistance, CD...output capacitance, X'tal...crystal resonator, CG...・Input capacitance, CC... Drain parasitic capacitance, 6... Frequency divider circuit, Figure 3... Inverter β (=μ・COX-W/L
) and an inverter. Figure 4...Drain current and gate voltage VG (=VD
; drain voltage).
Claims (1)
ＭＯＳインバータ、前記Ｃ−ＭＯＳインバータの入出力
間に接続された帰還抵抗、前記Ｃ一ＭＯＳインパータの
ゲート端子と前記水晶振動子の一方の端子との接続点に
接続された入力容量、前記水晶振動子の他方の端子に接
続された出力容量よりなる水晶発振回路において、前記
Ｃ一ＭＯＳインバータのコンダクタンス係数βは０．８
×１０−４Ａ／Ｖ２以下であり、かつ前記出力容量は１
０ＰＦ以下であることを特徴とする水晶発振回路。Crystal resonator, C- with the crystal resonator connected between input and output
a MOS inverter, a feedback resistor connected between the input and output of the C-MOS inverter, an input capacitor connected to a connection point between the gate terminal of the C-MOS inverter and one terminal of the crystal resonator, and the crystal oscillation. In a crystal oscillator circuit consisting of an output capacitor connected to the other terminal of the MOS inverter, the conductance coefficient β of the C-MOS inverter is 0.8.
×10-4A/V2 or less, and the output capacity is 1
A crystal oscillation circuit characterized by a 0PF or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7187685U JPS615012U (en) | 1985-05-15 | 1985-05-15 | crystal oscillation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7187685U JPS615012U (en) | 1985-05-15 | 1985-05-15 | crystal oscillation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS615012U true JPS615012U (en) | 1986-01-13 |
Family
ID=30609760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7187685U Pending JPS615012U (en) | 1985-05-15 | 1985-05-15 | crystal oscillation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS615012U (en) |
-
1985
- 1985-05-15 JP JP7187685U patent/JPS615012U/en active Pending
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