pinout ____________ | | PCPout| 1 16| VCC PC1out| 2 15|Zener PCinB| 3 14|PCinA VCOout| 4 13|PC2out /EN| 5 12| R2 C1A| 6 11| R1 C1B| 7 10|SFout GND| 8 9|VCOin |____________|