• on Audio/Video/Photography
  • Published in issue 7/2005 on page 0
About the article

Toslink Repeater/Splitter

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Toslink Repeater/Splitter
The purpose of this circuit is not only to extend an optical digital audio connection (Toshiba Toslink) but also to function as a splitter, so that two devices can be connected to one Toslink output.
The circuit consists of the standard application for the Toslink receiver module TORX173 (IC1) and the Toslink transmitter module TOTX173 (IC2 and IC3), that we have used on previous occasions.
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Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor Members can exclusively download these files for free as part of their Membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service. Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.

Resistors:
R1,R2 = 2k2
R3,R5 = 4,7
R4,R6 = 8k2
R7 = 1k5
Capacitors:
C1-C5 = 100nF
C6,C8 = 47µF 25V radial
C7 = 4µF7 63V radial
Inductors:
L1,L2 = 47µH
Semiconductors:
D1 = low-current LED, red
D2 = 1N4002
IC1 = TORX173
IC2,IC3 = TOTX173
IC4 = 74HCU04
IC5 = 7805
PCB, ref. 054005-1
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