JPS5652937A - Control system of pll device - Google Patents

Control system of pll device

Info

Publication number
JPS5652937A
JPS5652937A JP12852379A JP12852379A JPS5652937A JP S5652937 A JPS5652937 A JP S5652937A JP 12852379 A JP12852379 A JP 12852379A JP 12852379 A JP12852379 A JP 12852379A JP S5652937 A JPS5652937 A JP S5652937A
Authority
JP
Japan
Prior art keywords
counter
contents
binary
case
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.)
Granted
Application number
JP12852379A
Other languages
Japanese (ja)
Other versions
JPS6361809B2 (en
Inventor
Toshiyuki Ozawa
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP12852379A priority Critical patent/JPS5652937A/en
Publication of JPS5652937A publication Critical patent/JPS5652937A/en
Publication of JPS6361809B2 publication Critical patent/JPS6361809B2/ja
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE:To easily correct the offset by decoding and displaying the contents of the BCD counter in case the binary U/D counter for controlling the dividing number of the programmable divider has conformed with the contents of the binary counter. CONSTITUTION:In case IF in FM is -10.7MHz, when the receiving frequency is 76MHz, the local oscillation frequency is 65.3MHz and the frequency dividing number of the programmable divider 14 of the PLL device is 653. It is made 654 by adding +1 at the time of rise of a clock pulse CL2 for channel selection by the binary U/D counter 10 for controlling the said dividing number. The clock pulse CL1 is counted by the offset counter 21 and the BCD counter 23, and when the counter 21 has counted the offset portion 107, the binary counter 20 starts counting, and the contents of the counter 23 in case the contents of the counters 20, 10 have conformed to each other and have been detected 19 becomes the value of the receiving frequency. Namely, the receiving frequency of 76.1MHz can be obtained by multiplying the sum 761 of 107 and 654 by the channel base 100kHz.
JP12852379A 1979-10-04 1979-10-04 Control system of pll device Granted JPS5652937A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12852379A JPS5652937A (en) 1979-10-04 1979-10-04 Control system of pll device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12852379A JPS5652937A (en) 1979-10-04 1979-10-04 Control system of pll device

Publications (2)

Publication Number Publication Date
JPS5652937A true JPS5652937A (en) 1981-05-12
JPS6361809B2 JPS6361809B2 (en) 1988-11-30

Family

ID=14986842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12852379A Granted JPS5652937A (en) 1979-10-04 1979-10-04 Control system of pll device

Country Status (1)

Country Link
JP (1) JPS5652937A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02145637A (en) * 1988-11-29 1990-06-05 Asahi Chem Ind Co Ltd Rubber-modified styrenic resin composition having improved slidability

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52130625U (en) * 1976-03-31 1977-10-04
JPS52147033A (en) * 1976-06-01 1977-12-07 Toshiba Corp Code conversion circuit
JPS53129513A (en) * 1977-04-19 1978-11-11 Oki Electric Ind Co Ltd Frequency control circuit of digital-system receiver

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52130625U (en) * 1976-03-31 1977-10-04
JPS52147033A (en) * 1976-06-01 1977-12-07 Toshiba Corp Code conversion circuit
JPS53129513A (en) * 1977-04-19 1978-11-11 Oki Electric Ind Co Ltd Frequency control circuit of digital-system receiver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02145637A (en) * 1988-11-29 1990-06-05 Asahi Chem Ind Co Ltd Rubber-modified styrenic resin composition having improved slidability
JPH0567660B2 (en) * 1988-11-29 1993-09-27 Asahi Chemical Ind

Also Published As

Publication number Publication date
JPS6361809B2 (en) 1988-11-30

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