JPS5640365A - Clock noise leakage preventing circiut - Google Patents

Clock noise leakage preventing circiut

Info

Publication number
JPS5640365A
JPS5640365A JP11576979A JP11576979A JPS5640365A JP S5640365 A JPS5640365 A JP S5640365A JP 11576979 A JP11576979 A JP 11576979A JP 11576979 A JP11576979 A JP 11576979A JP S5640365 A JPS5640365 A JP S5640365A
Authority
JP
Japan
Prior art keywords
gate
fet7
clock noise
source
capacity
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
JP11576979A
Other languages
Japanese (ja)
Inventor
Yataro Yamashita
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11576979A priority Critical patent/JPS5640365A/en
Publication of JPS5640365A publication Critical patent/JPS5640365A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/617—Noise processing, e.g. detecting, correcting, reducing or removing noise for reducing electromagnetic interference, e.g. clocking noise
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/67—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Noise Elimination (AREA)
  • Picture Signal Circuits (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

PURPOSE:To reduce clock noise components, by providing an inductance between the gate and the drain and between the gate and the source of an FET and by resonating the capacity between them to the inductance in parallel to cancel this capacity. CONSTITUTION:FET7 is inserted between solid image pickup device 3 and the preamplifier, and the signal of a prescribed frequency is input to the gate of FET7 from pulse oscillator 8 to turn on FET7 and read out the constant-current signal source only when the pulse is input. Further, coil 9 is connected between the gate and the drain and between the gate and the source of FET7 and is resonated to capacity C1 in parallel. The circuit is controlled to have a sufficiently high impedance for the double frequency of the power source at the resonance time of the parallel resonance circuit, and clock noise is made constant-current equivalently at the view from the preamplifier side.
JP11576979A 1979-09-11 1979-09-11 Clock noise leakage preventing circiut Pending JPS5640365A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11576979A JPS5640365A (en) 1979-09-11 1979-09-11 Clock noise leakage preventing circiut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11576979A JPS5640365A (en) 1979-09-11 1979-09-11 Clock noise leakage preventing circiut

Publications (1)

Publication Number Publication Date
JPS5640365A true JPS5640365A (en) 1981-04-16

Family

ID=14670588

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11576979A Pending JPS5640365A (en) 1979-09-11 1979-09-11 Clock noise leakage preventing circiut

Country Status (1)

Country Link
JP (1) JPS5640365A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6219492U (en) * 1985-07-19 1987-02-05
JPH0187417U (en) * 1987-12-03 1989-06-09

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6219492U (en) * 1985-07-19 1987-02-05
JPH0523438Y2 (en) * 1985-07-19 1993-06-15
JPH0187417U (en) * 1987-12-03 1989-06-09

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