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Clock Circuits
Page 6
Clocks: #-A
B-C D-G
H-O P-S
T-Z
Last Updated on:
Friday, March 23, 2012 04:35 PM |
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Links to electronic circuits, electronic schematics, designs for engineers, hobbyists,
students & inventors:
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Tanktwanger circuit puts a New spin on clock synthesis -
02/03/97 EDN-Design Feature An unusual circuit, the
"tanktwanger," provides some clock-generating and -adjusting
advantages over conventional clock-synthesis methods. You can adapt
the main circuit for numerous applications,...[Design Feature by Glen
Chenier, Fitel Photomatrix] |
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TB028: Technique to Calculate Day of Week - Microchip
Application Note Published 23-Aug-99 (app note added 2/06)
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Termination Schemes & Design Guidelines for 3.3V Lvpecl Driver -
Pericom Semiconductor Application Note # 07)3 (app note added 02/05)
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Termination Supply Tracks One Half Core Voltage - 04/27/00
EDN-Design Ideas Modern µPs typically require core voltages of 2
to 3V. They also require "termination" voltages that, for best
performance, should equal half the core voltage. The problem is, core
voltages vary among CPUs,.... [Design Idea by Chester Simpson,
National Semiconductor, Santa Clara, CA] |
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The HC11 Controls the Stepper - (circuit / schematic design added
07/08/09) |
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The Propeller a mechanically scanned LED clock - (circuit / schematic
design added 6/06) |
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The Science of Timekeeping - Aligent Application Note (app note
added 6/07) |
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Timing Margin Analysis for Clock Buffers in High Speed Synchronous Networking
Systems - Pericom Semiconductor App Note # 018 (app note added 02/05)
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Unusual clock with AT89C2051 - English version link (electronic design
idea added 09/08) |
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Use a PC's parallel port to program a clock source - 7-Dec-04 Issue of
EDN This Design Idea shows how you can use Linear Technology's LTC6903
programmable oscillator as a clock source for direct-digital synthesis, data
conversion, switched-capacitor filtering, clock, and voltage-controlled oscillator
circuits. The LTC6903 operates from 2.7 to 5.5V with modest power consumption and
can produce clock signals at frequencies of 1 kHz to 68 MHz.... [Design Idea by By
William Grill, Honeywell BRGA, Lenexa, KS] |
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Use a PWM fan controller in an EMI susceptible circuit - 16-Feb-06 Issue
of EDN Control it with either an external negative-temperature-coefficient
thermistor or a PIC microcontroller and its SMBus serial-data bus.... [Design Idea
by Dimitri Danyuk, Niles Audio Corp; Edited by Brad Thompson and Fran Granville] |
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Use a system's real time clock to hide a code sequence - 27-Oct-05 Issue
of EDN Keep key code sections protected from prying users.... [Design Idea
by Mihaela Costin, Delmhorst Instruments, Towaco, NJ; Edited by Brad Thompson and
Fran Granville] |
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Use eight timers with PIC16Fxxx microcontrollers - 18-Feb-10 Issue of
EDN Timers debounce switches and let you decide when lapses have expired....
[Design Idea by Luis G Uribe C, Caracas, Venezuela] |
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Use of the LMV112 to Reduce Reference Clock Interaction in Handheld Device -
National Semiconductor Application Note (app note added 2/06) |
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Using Pericom's PI6c10x Pentium Ii/Celeron 100 MHz Clock in Place of W48s111-14
- Pericom Semiconductor Application Note # 010 (app note added 02/05)
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Using Timer 1 in Asynchronous Clock Mode - Microchip Application Note
Published 22-Nov-99 (app note added 2/06) |
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VCXO makes inexpensive dual clock reference - 27-Nov-03 Issue of EDN
This Design Idea describes an inexpensive circuit to generate two extremely
high-quality, crystal-clock-reference-signals, one of which is a PWM-controlled
VCXO (voltage-controlled crystal oscillator] clock signal (Figure 1]. The design
also includes circuitry to statically switch and hold the VCXO at its nominal
fixed frequency of operation (equivalent to 50% PWM] without requiring any
externa.... [Design Idea by Said Jackson, Equator Technologies Inc, Campbell, CA] |
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Video Clock Superimposer using PIC16C711 - As a followup to my VCR Pong
project, here is a gadget that is actually useful in the Real World! It
superimposes the time of day, in "HH MM SS" format, in the bottom right-hand
corner of an existing video signal. My friend Scott uses it with his home security
system....(circuit / schematic design added 6/06) |
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Wall Clock Governor Driver - These were common before the advent of
quartz controlled stepping motor clocks. Here is a reverse engineered
diagram of this very typical circuit…. [Reverse engineered schematic by Stepan
Novotill] |
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Yet Another Clock Featuring the PIC16c924 - Microchip Application Note
Published 26-Aug-97 (app note added 2/06) |
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Zero-Delay Clock Buffer Layout & Schematic Guidelines - Pericom
Semiconductor Application Note # 031 (app note added 02/05) |
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Clocks: #-A
B-C D-G
H-O P-S
T-Z
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