JPH01171114U - - Google Patents

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Publication number
JPH01171114U
JPH01171114U JP6304388U JP6304388U JPH01171114U JP H01171114 U JPH01171114 U JP H01171114U JP 6304388 U JP6304388 U JP 6304388U JP 6304388 U JP6304388 U JP 6304388U JP H01171114 U JPH01171114 U JP H01171114U
Authority
JP
Japan
Prior art keywords
phase
oscillator
modulator
signal
frequency
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
Application number
JP6304388U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP6304388U priority Critical patent/JPH01171114U/ja
Publication of JPH01171114U publication Critical patent/JPH01171114U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係るＰＬＬ方式ＦＭ変調器の
一実施例を示すブロツク図、第２図は従来のＰＬ
Ｌ方式ＦＭ変調器を示すブロツク図である。 １０…変調信号入力端子、１１…積分器、１２
…位相変調器、１３，１７…分周器、１４…基準
発振器、１５…位相比較器、１６…電圧制御発振
器、１８…ローパスフイルタ、１９…出力端子。 FIG. 1 is a block diagram showing an embodiment of a PLL type FM modulator according to the present invention, and FIG. 2 is a block diagram of a conventional PL FM modulator.
FIG. 2 is a block diagram showing an L-type FM modulator. 10...Modulation signal input terminal, 11...Integrator, 12
...Phase modulator, 13, 17... Frequency divider, 14... Reference oscillator, 15... Phase comparator, 16... Voltage controlled oscillator, 18... Low pass filter, 19... Output terminal.

Claims (1)

【実用新案登録請求の範囲】 基準発振器と、 変調信号を積分する積分器と、 前記基準信号発振器からの信号を前記積分器か
らの積分出力により位相変調する位相変調器と、 位相比較器、ローパスフイルタ、電圧制御発振
器及び分周器により構成され、前記位相変調器か
ら出力される周波数変調波を前記位相比較器に入
力して所定の搬送波周波数の周波数変調波を前記
電圧制御発振器から出力するＰＬＬとを具備した
ことを特徴とするＰＬＬ方式ＦＭ変調器。[Claims for Utility Model Registration] A reference oscillator, an integrator that integrates a modulated signal, a phase modulator that modulates the phase of the signal from the reference signal oscillator using the integral output from the integrator, a phase comparator, and a low-pass filter. A PLL comprising a filter, a voltage controlled oscillator, and a frequency divider, inputs a frequency modulated wave output from the phase modulator to the phase comparator, and outputs a frequency modulated wave of a predetermined carrier frequency from the voltage controlled oscillator. A PLL type FM modulator characterized by comprising:
JP6304388U 1988-05-12 1988-05-12 Pending JPH01171114U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6304388U JPH01171114U (en) 1988-05-12 1988-05-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6304388U JPH01171114U (en) 1988-05-12 1988-05-12

Publications (1)

Publication Number Publication Date
JPH01171114U true JPH01171114U (en) 1989-12-04

Family

ID=31288576

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6304388U Pending JPH01171114U (en) 1988-05-12 1988-05-12

Country Status (1)

Country Link
JP (1) JPH01171114U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0425308U (en) * 1990-06-25 1992-02-28
WO2005020429A1 (en) * 2003-08-22 2005-03-03 Matsushita Electric Industrial Co., Ltd. Broadband modulation pll, and modulation factor adjusting method therefor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947812A (en) * 1982-09-10 1984-03-17 Trio Kenwood Corp Angle modulator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947812A (en) * 1982-09-10 1984-03-17 Trio Kenwood Corp Angle modulator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0425308U (en) * 1990-06-25 1992-02-28
WO2005020429A1 (en) * 2003-08-22 2005-03-03 Matsushita Electric Industrial Co., Ltd. Broadband modulation pll, and modulation factor adjusting method therefor

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