NB6L239
VCC
VCC
VCC
VCC
LVPECL
Driver
Zo = 50 W
VT = VCC − 2.0 V
Zo = 50 W
NB6L239
CLK
50 W
50 W
CLK
VEE
VEE
Figure 12. LVPECL Interface
LVDS
Driver
Zo = 50 W
VT = OPEN
Zo = 50 W
NB6L239
CLK
50 W
50 W
CLK
VEE
VEE
Figure 13. LVDS Interface
VCC
VCC
VCC
VCC
CML
Driver
Zo = 50 W
VT = VCC
Zo = 50 W
NB6L239
CLK
50 W
50 W
CLK
HSTL
Driver
Zo = 50 W
VT =VEE
Zo = 50 W
NB6L239
CLK
50 W
50 W
CLK
VEE
VEE
Figure 14. Standard 50 W Load CML Interface
VCC
VCC
VEE
VEE
Figure 15. Standard 50 W Load HSTL Interface
VCC
VCC
Differential
Driver
Zo = 50 W
VT = VBBAC*
Zo = 50 W
NB6L239
CLK
50 W
50 W
CLK
Single−Ended
Driver
Zo = 50 W
VT = VBBAC*
NB6L239
CLK
50 W
50 W
CLK
VEE
VEE
Figure 16. Capacitor−Coupled Differential
Interface (VT Connected to VBBAC)
*VBBAC bypassed to ground with a 0.01 mF capacitor.
VEE
VEE
Figure 17. Capacitor−Coupled Single−Ended
Interface (VT Connected to VBBAC)
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