FXO/DAA Design Using Clare OptoMOS Components for North American/JATE DAA Using OptoMOS ITC135 or ITC137

Shows even more integration, using the Clare ITC135 or ITC137. The ITC135 and ITC137 include the switch hook function, a Darlington transistor for the gyrator circuit, an optocoupler for ring detect and transient protection zener diodes. The ITC135 offers half-wave ring detect, while the ITC137 offers full-wave ring detect. All the discrete components function as described previously