(9435) PCI Performance Measurements - Concepts and Practical Application:  Agilent Application Note   (app note added 6/06)

(AN-2) Ultra2 SCSI White Paper:  Application Note Microsemi 1202 (added 2/07)

(AN-6) Power Solutions for Flexible Motherboards:  Application Note Microsemi 1301 (added 2/07)

µC Based Circuit Performs Frequency Multiplication:  05/27/99 EDN-Design Ideas / (added 11/05)

µC RePrograms Audio DAC via Serial Interface:  01/07)/99 EDN-Design Ideas / (added 08/05) [Note:  File contains multiple circuits scroll to find this circuit]  You can use a simple µC to continuously program an audio DAC so that it operates in a 20-bit resolution mode ( Figure 1 ). After power-on,  PCM1710 delta-sigma DAC (Burr-Brown Corp, www.burr-brown.com) operates in its default 16-bit resolution....

µP Socket Automatic ally Senses Upgrade:  03/03/94 EDN Design Ideas / (added 11/05)

0 to 10 Volt Analog Control Protocol:  (circuit / schematic design added 6/06)

10 Base T Solutions Network Interface Adapter:  National Semiconductor Application Notes,28 Jun1996 / (app note added 5/02)

10 Hints for Making Better Network Analyzer Measurements:  Aligent Application Note  (added 2/06)

10 Watt Multiple Output Isolated Power Supply:  This design kit is an isolated converter (EP-18) for a High Speed Digital Modem application.  (added 3/05)

100 MHz Clock Solution for Desktop Computers:  Pericom Semiconductor Application Brief # 021 (app note added 2/05)

10Base-T Solutions: Network Interface Adapter:  National Semiconductor Application Note   (app note added 2/06)

10mbps Multiple Protocol Serial Chip Set: Net1 and Net 2 Compliance by Design:  DN174  Design Notes (Linear Technology) (app note added 1/06)

18 Bit ADC uses PC's Serial Port:  09/27/01 EDN Design Ideas / (added 6/06)  A PC usually requires a plug-in ADC card to process analog signals. However, with  circuitry in Figure 1, a PC can communicate with an 18-bit ADC through its serial port.  port provides both positive and negative power supplies as well as control signals. IC1 is an 18-bit MAX132 ADC with a serial interface.

2 Channel Port Powered RS-232 to RS422 Converter:  information on commercial product, datasheet includes full circuit diagram   (added 4/02)

2 Transistor Circuit Replaces IC #1:  02/07)/02 EDN-Design Ideas  / (added 4/02) -Jim Hagerman's article  Linear Technologies recently introduced LTC4300 chip buffers I2C clock and data lines to and from a hot-swappable card. This task is difficult because  IC must work bidirectionally.

2 Transistor Circuit Replaces IC:  Linear Technology's recently introduced LTC4300 chip buffers I2C clock and data lines to and from a hot-swappable card. This task is difficult because  IC must work bidirectionally (added 08/05)

2 Wire Communication Using LabVIEW:  Maxim Application Notes / 1190 / Jun-03  (app note added 6/06)

2 Wire LCD Interface using PIC16cf84:  (circuit / schematic design added 6/06)

2.5 Mb/s Isolated RS485 Communication Interface With up to 500 mW Supplementary Power :  Application Note California Eastern Laboratories Doc #961  (app note added 6/06)

200 Watt Modified PC Power Supply 13.5 Volt 14 Amp:  (electronic circuit added 4/05)

24 Bit Parallel Port Interface with 8255 for Commodore Computer:  (circuit added 9/04)

24 Line Parallel Interface for the PC :  (electronic circuit added 7/03)

24-Line PC Digital Interface:  (electronic circuit added 4/05)

25 Watt MOSFET  Amplifier:  High Quality simple unit. No need for a Preamplifier (added 9/04)

25-Pin PC Serial Port to MIDI Synthesizer Interface Cable:  (electronic circuit added 4/05)

27C801 EPROM Programmer Project:  (circuit / schematic design added 6/06)

2-Input Mixer:  As simple as it gets.  mixer consists of two transistor-based preAmplifiers.  first one (designated "Mike in") offers higher gain. it works well with a regular dynamic microphone.  second one can be used to control audio input from a tape recorder/CD player.  (added 6/06)

2m   20m Transverter:  (circuit / schematic design added 6/06)

2-Wire LCD Interface using PIC16cf84:  Alphanumeric LCD displays have become very popular for microcontroller applications because y can add a lot to a project in a variety of different ways. A text message giving  user instructions as well as feedback can make  application seem much more "professional" and easy to use. I like to use LCD's to help debug applications, with breakpoints set to display variable and I/O conditions and y are a lot cheaper than using a microcontroller emulator. To top it off, surplus LCD's can be found for a dollar or less.... (added 4/05)

300 Baud Modem Circuit Schematic:  Text is in French (added 4/05)

32 Bit Serial Receiver (57.6 K Baud TTL and CMOS):  (electronic circuit added 11/05)

4 Channel 8 Bit Analog-to-Digital Converter for PC:  (circuit added 7/02)

4 Port Fibre Channel Host Bus Adapter (HBA) Design:  Pericom Semiconductor App Note # 064 (app note added 02/05)

7 Segment Rolling Display using PC:  It is very interesting and convenient to be able to control everything while sitting at your PC terminal. Here, a simple hardware circuit and software is used to interface a 7-segment based rolling display. The printer port of a PC provides a set of points with some acting as input lines and some ors as output lines. Some lines are open collector type which can be used as input lines. The circuit given here can be used for interfacing with any type of PC’s printer port. The 25-pin parallel port connector at  back of a PC is a combination of three ports.. (added 10/05)

80186 Timer Pins Provide General I/O :  08/03/98 EDN-Design Ideas  / (added 11/05)   Intel's (www.intel.com) 80186 is a highly integrated mP common in embedded applications. It combines 15 to 20 common iAPX86 system components, such as a DMA controller, an interrupt controller, timers, a clock generator, a bus interface, and chip-select logic on one chip. Unfortunately, unlike many mCs, it provides no general-purpose I/O pins. However, if you require only a couple of input or latched-output lines, you can use  built-in timer I/O pins as general-purpose input or output lines by using this programming method (Listing 1)....

8051 SBC (Single Board Computer):  (electronic circuit added 4/05)

8k and 16k Microwire EEPROM Enhancements:  Microchip Application Note Published 11-Feb-04   (app note added 2/06)

9 to 9 Pin (Female) Null Modem Cable:  (schematic / circuit added 10/02)

9-Pin PC Serial Port to MIDI Synthesizer Interface Cable:  (circuit / schematic design added 6/06)