# 1987-09-03, English, Article, Journal or magazine article, Poster, chart, other edition: Frequency divider generates 50% duty cycle. (technical) Partyka, Andrzej

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Physical Description
• chart (Circuit that divides the digital CLK frequency by an even or odd number.)
• chart (Circuits that divide the digital CLK frequency by three and nine.)
• chart (Flip-flop add-on for divide-by-3 or -9 operations at higher CLK frequency.)
• technical
• Magazine/​Journal article
Published
• Canon Communications LLC, 1987 Sept 3
Language
• English

### Edition details

Title
• Frequency divider generates 50% duty cycle. (technical)
Also Titled
• Frequency divider generates 50% duty cycle.
Appears In
• EDN, v32, no.n18, 1987 Sept 3, p244(2) (ISSN: 0012-7515)
Author
• Partyka, Andrzej
Published
• Canon Communications LLC, 1987 Sept 3
Physical Description
• chart (Circuit that divides the digital CLK frequency by an even or odd number.)
• chart (Circuits that divide the digital CLK frequency by three and nine.)
• chart (Flip-flop add-on for divide-by-3 or -9 operations at higher CLK frequency.)
• technical
• Magazine/​Journal article
Subjects
Target Audience
Summary
• Circuit designs for digital frequency dividers that generate 50% duty cycles are given. The first design divides by any odd number M=​2N-1 and always outputs the symmetrical duty cycle. The duty cycle's output can range from (0.5)(N) to 1-(0.5)(N). Circuits for N=​2 (M=​3) and N=​5 (M=​9) are given. A design with an added AND gate builds a programmable circuit with symmetrical output that divides by both even and odd integers greater than two. The circuit has limited maximum CLK frequency because of the delay through the long divider chain. A circuit using a flip-flop add-on increases frequency.
Notes
• chart (Circuit that divides the digital CLK frequency by an even or odd number.)
• chart (Circuits that divide the digital CLK frequency by three and nine.)
• chart (Flip-flop add-on for divide-by-3 or -9 operations at higher CLK frequency.)
Language
• English
Database
• Gale General OneFile
Identifier
• 5245291

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#### These 20 locations in All:

Library Access Call number(s) Formats held Language
Bureau of Meteorology. National Meteorological Library. Open to the public Journals EDN; (Current 5 years) Periodical; Journal, magazine, other English
Charles Sturt University. CSU Library - Electronic Resources (shared). Open to the public 000101513; Full Text Available; ABI/INFORM - Available from 1994 until 2010 Periodical; Journal, magazine, other English
CSIRO. Library Services. Not open to the public 64846; Online access. Available for document delivery. Restrictions apply. Periodical; Journal, magazine, other English
CSIRO. Riverside Library. May not be open to the public 998986250001981; PA 621.38 ED; 2 years held (- 23 April 2009) Periodical; Journal, magazine, other English
Defence Science and Technology Group. DST Group Research Information Services - Melbourne. Not open to the public Serials; Vol. 16, no. 11-v. 42, no. 26; Jun. 1971-1997; Incomplete Periodical; Journal, magazine, other English
Department of Agriculture and Fisheries Qld. Dept of Agriculture and Fisheries Qld Research Information Service. Not open to the public s edn; v.27(15)-; 1982-; incomplete Periodical; Journal, magazine, other English
Edith Cowan University. Edith Cowan University Library. Open to the public Periodical; Journal, magazine, other English
Federation University Australia Library. Open to the public PER 621.381 EDN; Vol.29, no.25-Vol.48; 1984-2003 Periodical; Journal, magazine, other English
Flinders University. Flinders University Central Library. Open to the public 9957262101771; HELD Periodical; Journal, magazine, other English
Griffith University. Griffith University Library. Open to the public .b13534890; Electronic Resource : Publ. may restrict Doc. Del. Periodical; Journal, magazine, other English
National Library of Australia. Open to the public 2278458; S 621.3104205 EDN; Vol. 19, no. 21-v. 40, no. 26 (1974-Dec. 21, 1995) {Imperfect} Periodical; Journal, magazine, other English
Plantagenet Shire Council Libraries. Mount Barker Library. Open to the public Periodical; Journal, magazine, other English
Queensland University of Technology. Gardens Point Campus Library. Open to the public .b1309841x; gper 621.38 377; Latest five years only held Periodical; Journal, magazine, other English
RMIT University. RMIT University Library. Open to the public 9912463060001341; PER 621.305 E24; Incomplete. Held in Storage. Request from <a href=http://www.rmit.edu.au/library/dds target=_blank>Document Delivery</a>; v. 19 (1974)-v. 46 (Sept. 27, 2001) Periodical; Journal, magazine, other English
Southern Cross University. University Library Lismore. Open to the public Electronic resource - Check catalogue for holdings Periodical; Journal, magazine, other English
The University of Sydney. University of Sydney Library. Open to the public Periodical; Journal, magazine, other English
University of Newcastle. University of Newcastle Library. Open to the public 621.381505/15; Vol. 18, no. 1-v. 45, no. 9; 1973-Apr. 2000 Periodical; Journal, magazine, other English
University of Wollongong. University of Wollongong Library. Open to the public Online access. Not available for document delivery Periodical; Journal, magazine, other English
UNSW Sydney. UNSW Library. Open to the public 9942642490001731; HELD; Vol. 35, no. 1 (Jan. 4, 1990)-v. 46, no. 28 (Dec. 20, 2001) Periodical; Journal, magazine, other English
Western Sydney University. Penrith Campus Library. Open to the public 399999; Online version, 409900 Periodical; Journal, magazine, other English
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#### This single location in Australian Capital Territory:

Library Access Call number(s) Formats held Language
National Library of Australia. Open to the public 2278458; S 621.3104205 EDN; Vol. 19, no. 21-v. 40, no. 26 (1974-Dec. 21, 1995) {Imperfect} Periodical; Journal, magazine, other English
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#### These 8 locations in New South Wales:

Library Access Call number(s) Formats held Language
Charles Sturt University. CSU Library - Electronic Resources (shared). Open to the public 000101513; Full Text Available; ABI/INFORM - Available from 1994 until 2010 Periodical; Journal, magazine, other English
CSIRO. Riverside Library. May not be open to the public 998986250001981; PA 621.38 ED; 2 years held (- 23 April 2009) Periodical; Journal, magazine, other English
Southern Cross University. University Library Lismore. Open to the public Electronic resource - Check catalogue for holdings Periodical; Journal, magazine, other English
The University of Sydney. University of Sydney Library. Open to the public Periodical; Journal, magazine, other English
University of Newcastle. University of Newcastle Library. Open to the public 621.381505/15; Vol. 18, no. 1-v. 45, no. 9; 1973-Apr. 2000 Periodical; Journal, magazine, other English
University of Wollongong. University of Wollongong Library. Open to the public Online access. Not available for document delivery Periodical; Journal, magazine, other English
UNSW Sydney. UNSW Library. Open to the public 9942642490001731; HELD; Vol. 35, no. 1 (Jan. 4, 1990)-v. 46, no. 28 (Dec. 20, 2001) Periodical; Journal, magazine, other English
Western Sydney University. Penrith Campus Library. Open to the public 399999; Online version, 409900 Periodical; Journal, magazine, other English
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None of your libraries hold this item.

#### These 3 locations in Queensland:

Library Access Call number(s) Formats held Language
Department of Agriculture and Fisheries Qld. Dept of Agriculture and Fisheries Qld Research Information Service. Not open to the public s edn; v.27(15)-; 1982-; incomplete Periodical; Journal, magazine, other English
Griffith University. Griffith University Library. Open to the public .b13534890; Electronic Resource : Publ. may restrict Doc. Del. Periodical; Journal, magazine, other English
Queensland University of Technology. Gardens Point Campus Library. Open to the public .b1309841x; gper 621.38 377; Latest five years only held Periodical; Journal, magazine, other English
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#### This single location in South Australia:

Library Access Call number(s) Formats held Language
Flinders University. Flinders University Central Library. Open to the public 9957262101771; HELD Periodical; Journal, magazine, other English
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#### These 5 locations in Victoria:

Library Access Call number(s) Formats held Language
Bureau of Meteorology. National Meteorological Library. Open to the public Journals EDN; (Current 5 years) Periodical; Journal, magazine, other English
CSIRO. Library Services. Not open to the public 64846; Online access. Available for document delivery. Restrictions apply. Periodical; Journal, magazine, other English
Defence Science and Technology Group. DST Group Research Information Services - Melbourne. Not open to the public Serials; Vol. 16, no. 11-v. 42, no. 26; Jun. 1971-1997; Incomplete Periodical; Journal, magazine, other English
Federation University Australia Library. Open to the public PER 621.381 EDN; Vol.29, no.25-Vol.48; 1984-2003 Periodical; Journal, magazine, other English
RMIT University. RMIT University Library. Open to the public 9912463060001341; PER 621.305 E24; Incomplete. Held in Storage. Request from <a href=http://www.rmit.edu.au/library/dds target=_blank>Document Delivery</a>; v. 19 (1974)-v. 46 (Sept. 27, 2001) Periodical; Journal, magazine, other English
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