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www.us-
tech.com Akros Offers First Bidirectional I2
Sunnyvale, CA — Akros Silicon Inc. has introduced the AS1705 digital isolator. Optimized to enable real-time telemetry and control of Power Sourcing Equipment (PSE) controllers used in Power-over- Ethernet capable (PoE) switches and routers, the AS1705's 3.4MHz communication speed and inte- gration level are unmatched in the industry. The AS1705 comprises a dual channel bidi-
rectional I2C digital isolator as well as five unidi- rectional channels of isolation. Built on the compa- ny's proven GreenEdge™ digital isolation technol- ogy, each of the isolation channels are rated to pro- vide 2.5kV of galvanic isolation. On the bidirec- tional I2C channels, the unit's 3.4MHz data rate provides the needed bandwidth for a systems' processor to dynamically monitor and control the power requirements for multiple PSE controllers
August, 2014 C Isolator
within a system. This enables the system to allo- cate the precise amount of power required by each port while eliminating unnecessary power alloca- tion, which in turn reduces system energy con- sumption. The five unidirectional channels replace opto-
couplers or standalone unidirectional digital isola- tors and provide all of the isolated communication signals used by a PSE system, including system reset, PSE interrupt and three power good indica- tors from the systems' power supply units. The integrated functionality of the AS1705
Bidirectional isolator.
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Nothing increases production yields like AMTECH’s NC-560-LF, the lead-free, no-clean solder paste for hard-to-solder metallization surfaces, including ENIG (Gold),OSP, HASL and immersion silver
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FI LLI NG TH E VO ID
enables it to replace either one I2C digital isolator and five optocouplers or one I2C digital isolator and a five-channel unidirectional digital isolator. In both of these cases, the AS1705 reduces the PCB footprint of the isolation circuitry by 50 per- cent, simplifying board layout and re- ducing design time. According to the company, the
3.4MHz AS1705 isolator offers the highest speed solution for real-time network power diagnostics for PSE equipment. This integrated digital isolator
simultaneously solves the design challenges of increasing communica- tion bandwidth over the isolation barrier while also reducing PCB area
in 48 and 96 port Ethernet switches. Contact: Akros Silicon Inc., 6399
San Ignacia Ave. #250, San Jose,CA 95119 % 408-746-9000 fax: 408-746-9391 Web:
www.akrossilicon.com.
Ashcroft: Protect Pressure Instruments
Stratford, CT — Keep pressure in- struments safe from clogging by in- stalling an Ashcroft® Type 80 or 81 isolation ring in the pipeline. With
System measures without making contact.
the process medium contacting only the flexible inside wall of the isolator, the pressure is translated through a liquid fill to the sensing device atop the ring. To dampen the effects of pulsa-
tion, a needle valve can be incorpo- rated, while the exclusive Safe Quick Release™ (SQR™) option will permit the harmless, leak-free removal of the instrument for calibration or maintenance while the system is still
under pressure. Contact: Ashcroft Inc., 250 East
Main St., Stratford, CT 06614-5145 % 800-328-8258 or 203-378-8281 Web:
www.ashcroft.com
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