Article

Toslink Repeater/Splitter

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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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Materials

054005-PCB.pdf

Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD 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.

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PCB

Download Gerber file: 054005-1.zip

Component list

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