JPS56122237A - Variable dividing circuit - Google Patents

Variable dividing circuit

Info

Publication number
JPS56122237A
JPS56122237A JP2542780A JP2542780A JPS56122237A JP S56122237 A JPS56122237 A JP S56122237A JP 2542780 A JP2542780 A JP 2542780A JP 2542780 A JP2542780 A JP 2542780A JP S56122237 A JPS56122237 A JP S56122237A
Authority
JP
Japan
Prior art keywords
output
circuit
flip
ripple counter
flop
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
JP2542780A
Other languages
Japanese (ja)
Other versions
JPS6350719B2 (en
Inventor
Shigehisa Iwata
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2542780A priority Critical patent/JPS56122237A/en
Publication of JPS56122237A publication Critical patent/JPS56122237A/en
Publication of JPS6350719B2 publication Critical patent/JPS6350719B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
    • H03K23/66—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses

Landscapes

  • Electrophonic Musical Instruments (AREA)

Abstract

PURPOSE:To give a compensation to the division ratio, by giving an alternate phase inversin to the input of a specified counter circuit in accordance with the output of a divider circuit and the set value of the control signal. CONSTITUTION:The pulse signal of a prescribed frequency is supplied to the input terminal 1 and then applied to a ripple counter consisting of the flip-flops 3-6 and others. The division ratio control signal is applied to the control terminals 20-23 to be compared with the output of the ripple counter through the exclusive NOT gates 10-13. When a coincidence is obtained, the output of AND is set at a high level. The D type flip-flop 15 forms a delay circuit and then resets the ripple counter after a delay of 1/2 clock at the same time to invert the flip-flop 16. The gate circuit 19 forms the state circuit of the control signals K1-K4. Then in case the signals K1- K4 have the prescribed codes, the output of the NAND9 repeats ''H'' and ''L'' alternately in accordance with the output of the FF16.
JP2542780A 1980-02-29 1980-02-29 Variable dividing circuit Granted JPS56122237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2542780A JPS56122237A (en) 1980-02-29 1980-02-29 Variable dividing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2542780A JPS56122237A (en) 1980-02-29 1980-02-29 Variable dividing circuit

Publications (2)

Publication Number Publication Date
JPS56122237A true JPS56122237A (en) 1981-09-25
JPS6350719B2 JPS6350719B2 (en) 1988-10-11

Family

ID=12165659

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2542780A Granted JPS56122237A (en) 1980-02-29 1980-02-29 Variable dividing circuit

Country Status (1)

Country Link
JP (1) JPS56122237A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63107318A (en) * 1986-10-24 1988-05-12 Advantest Corp Variable frequency divider

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51134061A (en) * 1975-04-30 1976-11-20 Waaren Furiidoman Deeibitsuto Frequency dividing circuit
JPS5339731A (en) * 1976-09-24 1978-04-11 Kawai Musical Instr Mfg Co Note clock generator system for electronic instrument

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51134061A (en) * 1975-04-30 1976-11-20 Waaren Furiidoman Deeibitsuto Frequency dividing circuit
JPS5339731A (en) * 1976-09-24 1978-04-11 Kawai Musical Instr Mfg Co Note clock generator system for electronic instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63107318A (en) * 1986-10-24 1988-05-12 Advantest Corp Variable frequency divider

Also Published As

Publication number Publication date
JPS6350719B2 (en) 1988-10-11

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