JPS5721132A - Pll frequency synthesizer tuner - Google Patents

Pll frequency synthesizer tuner

Info

Publication number
JPS5721132A
JPS5721132A JP9639180A JP9639180A JPS5721132A JP S5721132 A JPS5721132 A JP S5721132A JP 9639180 A JP9639180 A JP 9639180A JP 9639180 A JP9639180 A JP 9639180A JP S5721132 A JPS5721132 A JP S5721132A
Authority
JP
Japan
Prior art keywords
frequency
dividing ratio
frequency synthesizer
pll frequency
9khz
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
JP9639180A
Other languages
Japanese (ja)
Inventor
Hiroo Adachi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP9639180A priority Critical patent/JPS5721132A/en
Publication of JPS5721132A publication Critical patent/JPS5721132A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer

Abstract

PURPOSE:To prevent the production of tracking error, by using separate PLL circuits for local signal frequency and tuning voltage for RF amplifier. CONSTITUTION:PLL circuits 6, 8 are provided and a controller 7 and a reference oscillator 61 are used in common. The output of the PLL circuit 8 is applied to an RF amplifier, and the output of the PLL circuit 6 is applied to a mixer MIX3. The frequency dividing ratio of frequency dividers 82, 62 is changed. For example, taking the RF reception frequncy fr as 531-1602kHz, frequency between stations as 9kHz(=fs), RF signal frequency as 468kHz, local signal frequency f as 999(531+468)-2070(1602+468)kHz and frequency fs of a reference oscillator 61 as 9kHz, respectively, the relation among the frequency dividing ratio N of the frequency divider 62 and the frequency dividing ratio N' of the frequency divider 82 is N'=N-52.
JP9639180A 1980-07-15 1980-07-15 Pll frequency synthesizer tuner Pending JPS5721132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9639180A JPS5721132A (en) 1980-07-15 1980-07-15 Pll frequency synthesizer tuner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9639180A JPS5721132A (en) 1980-07-15 1980-07-15 Pll frequency synthesizer tuner

Publications (1)

Publication Number Publication Date
JPS5721132A true JPS5721132A (en) 1982-02-03

Family

ID=14163652

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9639180A Pending JPS5721132A (en) 1980-07-15 1980-07-15 Pll frequency synthesizer tuner

Country Status (1)

Country Link
JP (1) JPS5721132A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5769937A (en) * 1980-10-20 1982-04-30 Matsushita Electric Ind Co Ltd Electronic tuning type receiver

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5419314A (en) * 1977-07-14 1979-02-14 Matsushita Electric Ind Co Ltd Electronic tuner

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5419314A (en) * 1977-07-14 1979-02-14 Matsushita Electric Ind Co Ltd Electronic tuner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5769937A (en) * 1980-10-20 1982-04-30 Matsushita Electric Ind Co Ltd Electronic tuning type receiver
JPS624013B2 (en) * 1980-10-20 1987-01-28 Matsushita Electric Ind Co Ltd

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