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Clock Circuits  Page 4
Clocks:   #-C      D-G       H-O      P-S      T-Z

Last Updated on: Saturday, June 27, 2009 04:42 PM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Pacer clock saves subroutine calls:  11/10/05  EDN Design Ideas  /  (added 10/06)  Time-delay routine requires no subroutine calls, avoids stack-overflow hazards.

PC Clock Offerings:  Pericom Semiconductor Application Brief # 020 (app note added 02/05)

PIC Digital Clock Timer:  (circuit / schematic design added 6/06)

PIC Tock Video Clock #2:  (electronic circuit added 7/03)

PIC16F873 Digital Clock:  (circuit / schematic design added 6/06)

PLD Implements Fast Four Phase Clock Generator:  10/27/94 EDN Design Ideas /  (added 6/06)

Power and Thermal Considerations for High Speed Clock Generators:  National Semiconductor Application Note   (app note added 2/06)

Procedure for DDR Clock Skew and Jitter Measurements:  Pericom Semiconductor Application Note # 028 (app note added 02/05)

Programmable Clock Oscillator #1:  voltage controller oscillator that was designed as a wide range oscillator to generate clock pulses for a stepper motor drive system, frequency could be varied over1,000,000:1 (added 4/02)

Programmable Clock Oscillator #2:  PIC-Tock video clock using a PIC16C61 (added 4/02)

Prop Clock Project:  (diagram added 10/06)

Propeller a mechanically scanned LED clock :  (circuit / schematic design added 6/06)

Propeller Clock:  a few light emitting diodes spin, precisely controlled by a PIC microprocessor, giving the illusion of a larger array. (added 7/03)

Provisionary Data Rates using the AD9951 DDS as an Agile Reference Clock for the ADN2812 Continuous-Rate CDR:  AN-632 Analog Devices Application Notes  (app note added 2/06) 

Radio Clock for PC's:  (electronic circuit added 4/05)

Real Design Issues for Clock Buffers for Networking and PC Applications:  Pericom Semiconductor Application Brief # 025 (app note added 02/05)

Realtime clock Chip Makes Lowpower Oscillator:  11/23/00 EDN-Design Ideas / (added 6/06)  Many systems use watch-crystal-based, 32.768-kHz oscillators. In battery-powered designs, the 32-kHz oscillator may consume a fairly high percentage of the total power budget. Reduced power consumption equates to longer battery life, smaller batteries, and smaller products. Ricoh (www.ricoh.com) manufactures more than 10.... 

Schematic and Layout Guidelines for PI6cv304/PI6cv2304:  Pericom Semiconductor Application Note # 054 (app note added 02/05)

Scheme Speeds Access to µP's Real-Time Clock :  06/04/98 EDN-Design Ideas  / (added 11/05)   

Science of Timekeeping:  Aligent Application Note  (added 2/06)

SDRAM Modules using Pericom's Products:  Pericom Semiconductor Application Brief # 015 (app note added 02/05)

Single Gate Synchronizes Clock:  10/27/94 EDN-Design Ideas / (added 6/06)  The deceptively simple circuit in Fig 1 harbors formidable power. Consider when you have a data-clock input to your system for an existing serial data stream. Then, your system people surprise you .... 

Solution for PC100 Compliant Modules:  Pericom Semiconductor Application Brief # 017 (app note added 02/05)

Solutions to Current High-Speed Board Design:  Pericom Semiconductor Application Note # 022 (app note added 02/05)

Spinning PIC Clock Designed by Andrew R. Morris  (diagram added 10/06)

SP-L Modulator uses Single-Speed Bit Clock:  08/15/97 EDN Design Ideas / (added 2/06)

Sun Up Alarm:  The Sun Up Alarm can be used to provide a audible alarm for when the sun comes up or it can be used in a dark area and detect when a light comes on. It can also be used to detect a light beam, headlights etc. The circuit works as follows. The phototransistor is very sensitive to light. (Any phototransistor will work fine) The sun shining on this device will provide a high to one of the NAND gates......  (added 3/03))

Supporting FDDI with the ADN2812:  AN-746 Analog Devices Application Notes  (app note added 2/06) 

System Implements Digital Clock Modulation :  10/28/04 EDN Design Ideas  / (added 11/05)  In spread-spectrum and direct-sequence receivers, it's often necessary to change the frequency of the clock oscillator, and thus the spreading-code clock, to lock the receiver's reference pseudorandom-noise code to the incoming code. The original design used a VCXO (voltage-controlled crystal oscillator) for this function, but ....


Clocks:   #-C      D-G       H-O      P-S      T-Z

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