
8. Recommended Interface Circuit
DELTA GEPON ONU Module
  | 
  | 1uH  | 6. VccT  | 
3.3V  | 
  | 
  | |
  | 
  | 
  | |
10uF  | 100nF  | 
  | 100nF  | 
  | 
  | 1uH  | 
  | 
BiasCNT  | 
  | 
  | 8. BiasCNT  | 
  | 
  | 
  | 
  | 9. TD(p)  | Transmitter  | 
  | 
  | |
Coupled  | 
  | 
  | 
interface  | 10. TD(n)  | 
  | 
  | 7. VeeT  | 
  | 
Protocol IC | 
  | 
  | 
SerDes IC | 2. VccR  | 
  | 
  | 
  | |
10uF  | 100nF  | 
  | 
Z0=50ohm  | 5. RD(p)  | 
  | 
  | 
  | |
100ohm  | 100nF  | 
  | 
  | 
  | |
Z0=50ohm  | 4. RD(n)  | 
  | 
  | 
  | |
  | 100nF VccR  | Receiver | 
  | RES  | 
  | 
SD  | 3. SD  | 
  | 
  | 
  | |
  | 1. VeeR  | 
  | 
* RES is the internal 4.7K to 10K Ohms 
Coupled interface
DC - Coupled interface  | 
  | 
  | AC - Coupled interface  | 
  | |
3.3V  | 
  | 
  | 
  | 100nF  | 
  | 
  | 
  | 
  | Z0=50ohm  | 
  | |
  | 
  | 
  | 
  | 
  | |
130ohm  | 82ohm  | 
  | Host  | 100ohm  | DELTA  | 
  | Board  | ONU  | |||
  | 
  | 
  | |||
  | 
  | 
  | 
  | ||
  | 
  | 
  | 
  | Z0=50ohm  | 
  | 
Z0=50ohm  | 
  | 
  | 
  | 100nF  | 
  | 
Host  | 
  | DELTA  | 150ohm  | 150ohm  | 
  | 
Board  | 
  | ONU  | 
  | 
  | 
  | 
Z0=50ohm  | 
  | 
  | 
  | 
  | 
  | 
130ohm  | 82ohm  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | |
3.3V  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 7  | 
  | Revision: S0  | 
  | 
  | 
  | 
  | 
  | 06/01/2007  | 
DELTA ELECTRONICS, INC.  | 
  | 
  | 
  | www.deltaww.com  | |