JPH0375642U - - Google Patents
Info
- Publication number
- JPH0375642U JPH0375642U JP13585089U JP13585089U JPH0375642U JP H0375642 U JPH0375642 U JP H0375642U JP 13585089 U JP13585089 U JP 13585089U JP 13585089 U JP13585089 U JP 13585089U JP H0375642 U JPH0375642 U JP H0375642U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- pll circuit
- main body
- controlled oscillator
- outputs
- 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 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Superheterodyne Receivers (AREA)
Description
第１図は本考案の一実施例によるコードレス電
話機におけるＰＬＬ回路のブロツク構成図、第２
図は同機におけるベースユニツトのハンドユニツ
トに対する送受信を行う回路のブロツク構成図で
ある。
１…ＰＬＬ回路、２…電圧制御発振器、３…Ｐ
ＬＬ回路本体部、５…マイクロコンピユータ、Ｖ
ＤＤ…電源、Ｒ…抵抗、Ｄ…ダイオード。
FIG. 1 is a block diagram of a PLL circuit in a cordless telephone according to an embodiment of the present invention;
The figure is a block diagram of a circuit for transmitting and receiving signals from the base unit to and from the hand unit in the same machine. 1...PLL circuit, 2...voltage controlled oscillator, 3...P
LL circuit main body, 5...microcomputer, V
DD...power supply, R...resistance, D...diode.
Claims (1)
制御発振器と、通話チヤンネルに応じた基準とな
る発振周波数出力と前記電圧制御発振器の発振出
力とを比較し、その差分に応じて該電圧制御発振
器に所定の制御電圧を出力するＰＬＬ回路本体部
とを備えたコードレス電話機等におけるＰＬＬ回
路において、 前記ＰＬＬ回路本体部の制御電圧出力端子に一
定電圧を印加する電源回路を設けて、該ＰＬＬ回
路本体部への電源投入直後の該制御電圧の立ち上
がりを速めたことを特徴とするコードレス電話機
等におけるＰＬＬ回路。[Claims for Utility Model Registration] A voltage-controlled oscillator that outputs a predetermined oscillation frequency signal for communication, and a difference between the oscillation output of the voltage-controlled oscillator and a reference oscillation frequency output corresponding to a communication channel. In a PLL circuit in a cordless telephone, etc., which is equipped with a PLL circuit main body that outputs a predetermined control voltage to the voltage controlled oscillator according to the voltage control oscillator, the power supply circuit applies a constant voltage to a control voltage output terminal of the PLL circuit main body. A PLL circuit for a cordless telephone or the like, characterized in that the control voltage rises quickly immediately after power is turned on to the PLL circuit main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13585089U JPH0375642U (en) | 1989-11-21 | 1989-11-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13585089U JPH0375642U (en) | 1989-11-21 | 1989-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0375642U true JPH0375642U (en) | 1991-07-30 |
Family
ID=31683090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13585089U Pending JPH0375642U (en) | 1989-11-21 | 1989-11-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0375642U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5368554A (en) * | 1976-11-30 | 1978-06-19 | Mitsubishi Electric Corp | Wide-band phase synchronous receiver |
| JPS5757048A (en) * | 1980-09-22 | 1982-04-06 | Nippon Telegr & Teleph Corp <Ntt> | Radiotelephony device |
-
1989
- 1989-11-21 JP JP13585089U patent/JPH0375642U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5368554A (en) * | 1976-11-30 | 1978-06-19 | Mitsubishi Electric Corp | Wide-band phase synchronous receiver |
| JPS5757048A (en) * | 1980-09-22 | 1982-04-06 | Nippon Telegr & Teleph Corp <Ntt> | Radiotelephony device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0375642U (en) | ||
| JPS6188320U (en) | ||
| KR880002759Y1 (en) | Intermittent power supply circuit of the receiver | |
| JPS5811352U (en) | Wireless communication device receiving circuit | |
| JPS59189313U (en) | variable frequency oscillation circuit | |
| JPS61165475U (en) | ||
| JPH01177626U (en) | ||
| JPS62186533U (en) | ||
| JPH02120949U (en) | ||
| JPH0224646U (en) | ||
| JPS62146325U (en) | ||
| JPH0365325U (en) | ||
| JPS61189638U (en) | ||
| JPH0165510U (en) | ||
| JPS6193025U (en) | ||
| JPH0339928U (en) | ||
| JPH0195817U (en) | ||
| JPH0172718U (en) | ||
| JPS62155579U (en) | ||
| JPH0264222U (en) | ||
| JPH0260313U (en) | ||
| JPH0272073U (en) | ||
| JPH01126645U (en) | ||
| JPH0390113U (en) | ||
| JPS62186525U (en) |