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Clock Circuits  Page 1
Clocks:   #-A      B-C      D-G       H-O      P-S      T-Z

Last Updated on: Thursday, October 30, 2014 09:22 AM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:
100 MHz Clock Solution for Desktop Computers -  Pericom Semiconductor Application Brief # 021 (app note added 2/05)
1MV Offset Clock-Tunable Monolithic 5-Pole Lowpass Filter -  DN67  Design Notes (Linear Technology) (app note added 1/06)
24 Second Shot Clock Circuit -  This is a circuit intended to be used in basketball shot clock… [Milardo de Guzman]
28 LED Clock Timer 72 LED Clock -  programmable clock Timer circuit that uses individual LEDs to indicate hours and minutes (added 4/02)
30 Nanosecond Settling Time Measurement for a Precision Wideband Amplifier -  AN79 Linear Technology AN79 modifies methods presented in AN74, permitting verification of 30 nanosecond amplifier settling times to 0.1% resolution.  sampling-based technique used is detailed and results presented. Appendices cover oscilloscope overdrive issues,....
4 Bit Binary Clock -  (electronic circuit added 7/03)

68HC11 Read Encoder -  ….(Circuit design added 07/08/09)
7 Segment LED Counter (Aaron Cake) -  This simple counter can be used to count pulses, as the basis for a customer counter (like you see at the doors of some stores), or for anything else that may be counted. The circuit accepts any TTL compatible logic signal, and can be expanded easily (see Notes)....(schematic / circuit added 09/06)

72 LED Clock -  In the circuit above, 60 individual LEDs are used to indicate the minutes of a clock and 12 LEDs indicate hours. The power supply and time base circuitry is the same as described in the 28 LED clock circuit above. The minutes section of the clock is comprised of eight 74HCT164 shift registers cascaded so that a single bit can be recirculated through the 60 stages i.... [Bill Bowden]
74ACT74 makes low-skew clock divider -  12/17/98 Issue of EDN  Serial-data systems often generate an internal clock at twice the data rate for mid-bit sampling or for generating bi-phase codes. External equipment and some internal processes require a clock that runs at the data rate. Simply dividing the twice-rate clock with a flip-flop generates a data-rate clock that is skewed by one logic delay with respect to the input.  This delay can be a significant fraction of the bit period. You can use specialized PLL-based low-skew divider chips....Page includes several designs.  Scroll to find this one.... [Design Idea by JTom Napier, Consultant, North Wales, PA]
8 Hints for Making Better RF Counter Measurements 5967-6038e -  Aligent App Note  (app note added 6/07)
A 1MV Offset Clock-Tunable Monolithic 5-Pole Lowpass Filter -  DN67  Design Notes (Linear Technology) (app note added 1/06)
A Clock Design using the PIC16c54 for LED Displays & Switch Inputs -  Microchip Application Note Published 26-Aug-97  (app note added 6/06)
AD9430 Evaluation Board Modifications for XTAL Oscillator Clocking -  AN-616 Analog Devices Application Notes  (app note added 6/06)
ADN2812 Evaluation Board -  AN-657 Analog Devices Application Notes  (app note added 2/06)  
ADN2819 Evaluation Board -  AN-636 Analog Devices Application Notes  (app note added 2/06)This application note describes  use of  ADN2819 evaluation board. The ADN2819 is a multirate clock recovery, data-retiming device based on a multiloop PLL architecture…..
An Overview of Pericom's Vcxo & Crystal Technology -  Pericom Semiconductor Application Note # 048 (app note added 02/05)
AN-1173: High Speed Bus LVDS Clock Distributionusing the DS92ck16 Clock Distribution Device -  National Semiconductor Application Note  (app note added 2/06)
AN-1439: Use of the LMV112 to Reduce Reference Clock Interaction in Handheld Device -  National Semiconductor Application Note  (app note added 2/06)
AN-291: Asynchronous Clock Interfacing with the AD7878 -  AN-291 Analog Devices Application Notes  (app note added 6/06)
AN580: Using Timer 1 in Asynchronous Clock Mode -  Microchip Application Note Published 22-Nov-99  (app note added 2/06)
AN582: Low-Power Real Time Clock -  Microchip Application Note Published 22-Nov-99  (app note added 2/06)
AN590: A Clock Design using the PIC16c54 for LED Displays & Switch Inputs -  Microchip Application Note Published 26-Aug-97  (app note added 6/06)
AN615: Clock Design using Low Power/Cost Techniques -  Microchip Application Note Published 26-Aug-97  (app note added 2/06)
AN-616: AD9430 Evaluation Board Modifications for XTAL Oscillator Clocking -  AN-616 Analog Devices Application Notes  (app note added 6/06)
AN-632: 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)  
AN-636: ADN2819 Evaluation Board -  AN-636 Analog Devices Application Notes  (app note added 2/06)This application note describes  use of  ADN2819 evaluation board. The ADN2819 is a multirate clock recovery, data-retiming device based on a multiloop PLL architecture. The ADN2819 can recover clock....
AN-642: Coupling a Single-Ended Clock Source to the Differential Clock Input of Third-Generation TxDAC® & TxDAC+® Products -  AN-642 Analog Devices Application Notes  (app note added 6/06) 
AN649: Yet Another Clock Featuring the PIC16c924 -  Microchip Application Note Published 26-Aug-97  (app note added 2/06)
AN-657: ADN2812 Evaluation Board -  AN-657 Analog Devices Application Notes  (app note added 2/06)   
AN-746: Supporting FDDI with the ADN2812 -  AN-746 Analog Devices Application Notes  (app note added 2/06)  
AN-769: Generating Multiple Clock Outputs from the AD9540 -  AN-769 Analog Devices Application Notes  (app note added 2/06)  
AN-772: A Design & Manufacturing Guide for the Lead Frame Chip Scale Package -  AN-772 Analog Devices Application Notes  (app note added 2/06)  
AN-823: Direct Digital Synthesizers in Clocking Applications Time Jitter in Direct Digital Synthesizer-Based Clocking Systems -  AN-823 Analog Devices Application Notes  (app note added 2/06)  
AN892: Fail-Safe Monitoring & Clock Frequency Switching using the PIC16f684 -  Microchip Application Note Published 16-Dec-03  (app note added 2/06)
AN-984: Power & Thermal Considerations for High Speed Clock Generators -  National Semiconductor Application Note  (app note added 2/06)
AN-988: High Speed Clock Sources & Their Effect on Electromagnetic Compatibility -  National Semiconductor Application Note  (app note added 2/06)
Application of Zero Delay Buffers in Systems with Large Memory Arrays -  Pericom Semiconductor Application Brief # 024 (app note added 02/05)
Application of Zero-Delay Buffers in Switched Ethernet -  Pericom Semiconductor Application Note # 015 (app note added 02/05)
Asynchronous Clock Interfacing with the AD7878 -  AN-291 Analog Devices Application Notes  (app note added 6/06)

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



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