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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,....
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]
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-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....
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