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PLD replacement - Microchip Application Note Published 26-Aug-97
(app note added 2/06) |
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PLD Solves RS232c Compatibility Problem - 01/19/95 EDN-Design Ideas
[Design Idea added 11/05] EDN is migrating links. This link is not verified.
Google the "title" EDN for new link. |
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PLDS Eliminate Isa PC-Board's Jumpers - 06/23/94 EDN-Design Ideas
[Design Idea added 2/06] EDN is migrating links. This link is not verified.
Google the "title" EDN for new link. |
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PLDS Implement Delay Lines - 03/31/94 EDN-Design Ideas [Design Idea
added 2/06] EDN is migrating links. This link is not verified. Search the
"title" + EDN for new link. |
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PLDS Substitute for Obsolete Latches - 06/09/94 EDN-Design Ideas
[Design Idea added 2/06] EDN is migrating links. This link is not verified.
Google the "title" + EDN for new link. |
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PLL forms simple MSK demodulator - 12/17/98 Issue of EDN In
minimum-shift-keying (MSK) signaling, two frequencies that differ by the bit rate
represent a one bit and a zero bit. Normally, the frequency shift occurs at the peak
of a cycle, so that neither the amplitude nor the slope of the waveform shows a
discontinuity. We needed to transmit 300-baud ASCII text using ultrasonic transducers.
These devices have a very narrow bandwidth around their 25-kHz resonant frequency,
making MSK the obvious choice for modulation. A zero....Page includes several designs.
Scroll to find this one.... [Design Idea by JTom Napier, North Wales, PA] |
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PLL IC Forms Simple Digital Phase Shifter - 01/04/96 EDN-Design Ideas
A phase shifter is a vital block in some signal-processing and clock-distribution
applications. Another important application is in benchmarking digital phase
detectors. The circuit in Figure 1, an especially appropriate one for evaluating phase
detectors, uses only two industry-standard ICs (CD4046 and LM311]. It relies on
digital PLL techniques....[Design Idea added 6/06] EDN is migrating links. This link
is not verified. Google the "title" EDN for new link. |
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PLL synchronizes power supply IC - 07/16/98 EDN-Design Ideas It is
often desirable to synchronize a switching power supply to a system clock or to a
second supply. If the power-supply controller has no synchronization pin, you can add
a low-value resistor in series with the oscillator capacitor, thereby developing a
synchronization....File has several circuits, please scroll to find this one....
[Design Idea by Kurk Mathews, Linear Technology Corp, Milpitas, CA] |
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Ponyprog Circuit for ATMEL'S AVR - The ATMEL AVR programmer works with the
Windows program "Ponyprog" which works under 95, 98, XP,... and can be found at
[url]http://www.lancos.com/prog.html[/url] On board the AVRs that can be programmed
are those in the schematic. For other members of AVR family or the rest programmable
ICs that Ponyprog can program, there is the J1 connector (CON10) which allows
expanding the programmer's hardware. See Ponyprog's site for other's ICs Ponyprog
circuits. The JUMP1 jumper is there to connect the crystal's circuitry to the 8- pin
AVRs or to disconnect it. Some AVRs have internal... |
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Ponyprog Circuit for AVR & PIC16F84 - (circuit added 7/02) [Site is under
construction right now] |
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Populating the USB Components on the EDB9301 Development Board - (app note
added 6/07) |
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Port Monitor (RS-232) - Wiring up something nice and simple, for instance a
plain old "dumb terminal", is just a matter of connecting Tx, Rx and Ground, right?….
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Power Factor Correction PFC Basics/ AN-42047 - Fairchild Application Notes /
(app note added 6/06) |
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Power Management for PIC18 USB MicroControllers with Nanowatt Technology -
Microchip Application Note Published 19-Nov-04 (app note added 06/06/06)
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Power over Ethernet Isolated Power Supply Delivers 11.5W at 90% Efficiency -
DN338 Design Notes (Linear Technology) (app note added 1/06) |
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Power PC 's on chip debug features alter embedded development - 07/16/98
EDN-Design Feature The PowerPC is one of the most talked about microprocessor
families in the embedded-system market. The PowerPC's RISC architecture offers massive
processing power at attractive prices. The latest member of the family—the 604e—offers
a SPECINT92 of 225 at 166 MHz.....File has several circuits, please scroll to find
this one....[ [Design Idea by Jim Challenger, Software Development Systems] |
