JPS5488712A - Vhf television tuner - Google Patents

Vhf television tuner

Info

Publication number
JPS5488712A
JPS5488712A JP15691377A JP15691377A JPS5488712A JP S5488712 A JPS5488712 A JP S5488712A JP 15691377 A JP15691377 A JP 15691377A JP 15691377 A JP15691377 A JP 15691377A JP S5488712 A JPS5488712 A JP S5488712A
Authority
JP
Japan
Prior art keywords
high frequency
circuit
band
constitution
filter
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
JP15691377A
Other languages
Japanese (ja)
Inventor
Seiichi Watanabe
Fumio Ishikawa
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP15691377A priority Critical patent/JPS5488712A/en
Publication of JPS5488712A publication Critical patent/JPS5488712A/en
Pending legal-status Critical Current

Links

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

PURPOSE: To reduce the number of resonant circuit as a whole, to simplify the constitution, and to make small the unit in size, by constituting the high frequency input tuning circuit and the high frequency in-stage tuning circuit with the VHF low band and high band circuits respectively.
CONSTITUTION: The signal input is tured in high frequency with the high frequency input tuning circuit 33, and after high frequency amplification 34, it is tuned 33 with high frequency stages, is mixed 37 with the output of the local oscillating circuit 39, and the output is fed to the IF amplifying circuit 36 via the IF filter 41. In this case, the circuit 33 becomes the broad band tuning circuit in common use for the VHF low and high band. It also consists of the narrow band VHF low and high band fixed tuning circuits, and the IF filter 41 is of narrow band filter. Thus, the number of resonant circuits can be reduced as a whole, the constitution is simplified and the size can be made smaller.
COPYRIGHT: (C)1979,JPO&Japio
JP15691377A 1977-12-26 1977-12-26 Vhf television tuner Pending JPS5488712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15691377A JPS5488712A (en) 1977-12-26 1977-12-26 Vhf television tuner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15691377A JPS5488712A (en) 1977-12-26 1977-12-26 Vhf television tuner

Publications (1)

Publication Number Publication Date
JPS5488712A true JPS5488712A (en) 1979-07-14

Family

ID=15638110

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15691377A Pending JPS5488712A (en) 1977-12-26 1977-12-26 Vhf television tuner

Country Status (1)

Country Link
JP (1) JPS5488712A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055137U (en) * 1983-09-24 1985-04-18 シャープ株式会社 VHF tuner high frequency amplifier circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055137U (en) * 1983-09-24 1985-04-18 シャープ株式会社 VHF tuner high frequency amplifier circuit

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