Server: Netscape-Enterprise/2.01 Date: Fri, 21 Nov 1997 04:57:59 GMT Accept-ranges: bytes Last-modified: Wed, 15 Oct 1997 16:47:17 GMT Content-length: 6246 Content-type: text/html Dallas Semiconductor Corp Tech Briefs: Tech Briefs Index
Dallas Semiconductor Corporation Tech Briefs

Index of Tech Briefs

Tech Brief 1 MicroLAN Design Guide
This tech brief provides an overview of the 1-Wire bus designed and developed by Dallas Semiconductor. It gives guidance on the pitfalls and solutions involved in setting up a MicroLAN. It also discusses active pull-ups, cabling, COM port adapters and opto-isolation. Complete circuit schematics with values and guidelines are provided along with a 1-Wire waveform template.

 

Tech Brief 2 Dual-Polarity Amplifier is Controlled Digitally
An amplifier circuit which provides both inverting and non-inverting modes is described. Using a digital potentiometer, the polarity of the gain is placed under digital control. This gives the added benefit of being able to smoothly transition the gain from -1 to +1, and the circuit can be used to provide a power-on mute function for audio applications.

 

Tech Brief 3 Digitally Control Phase Shift
Changing the phase characteristics of a signal without affecting its amplitude is commonly accomplished with an allpass filter. This tech brief presents the basics of building phase-shift circuits and describes how to use a digital potentiometer in an allpass circuit to allow the phase shift of the circuit to be controlled digitally. A complete audio phase shifter effect device is presented which also synthesizes a psuedo-stereo signal from a monophonic input.

 

Tech Brief 4 Improving the ESD-Hardness of Battery Packs Containing DS243x Battery ID Chips
Design engineers know there is always potential risk of ESD damage to CMOS devices. This tech brief discusses various methods by which they can guard against ESD damage in Dallas Semiconductor's DS243x Battery ID Chips and in their end products.

 

Tech Brief 5 Programming DS243x Battery ID Chips
Using text and diagrams, this tech brief outlines various methods by which the DS243x Battery ID Chips can be programmed, and compares the advantages and disadvantages of each.

 

Tech Brief 6 Multi-Channel T1/E1 Solutions
When deciding whether to integrate T1 or E1 chips vertically or horizontally, the critical parameters are space and cost. This tech brief discusses the advantages and disadvantages of both solutions. Diagrams are included.

 

Tech Brief 7 DS2152 and DS2154: 8 MHz System Clock Operation
This tech brief shows how DS2152 and DS2154 PCM signals can interface to an 8 MHz system backplane to multiplex four 2.048 MHz PCM streams onto a single 8 MHz PCM stream. Diagrams are included.

 

Tech Brief 8 Problems and Solutions for the Year 2000
Inconsistencies in how computers handle dates plus how this will affect date accuracy when the year changes from 1999 to 2000 are discussed. A hardware solution to this problem is presented featuring Dallas Semiconductor's Year-2000 compliant timekeeping devices. Diagrams are included.

 

Tech Brief 9 In-Circuit Reprogramming of the DS1075 EconOscillator
The DS1075 EconOscillator can be reprogrammed in-circuit, alleviating the need to remove the device. This tech brief describes the recommended in-circuit reprogramming method. Diagrams are included.

 

Tech Brief 10 ESD Considerations for RS-232 Drivers
As discussed in Tech Brief 4, there is potential risk of ESD damage to CMOS devices. This tech brief discusses various methods by which they can guard against ESD damage in RS-232 drivers. Diagrams are included.

 


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