SI5335 Datasheet, PDF (28/47 Pages) Silicon Laboratories – WEB-CUSTOMIZABLE, ANY-FREQUENCY, ANY-OUTPUT QUAD CLOCK GENERATOR/BUFFER

Si5335
Si5335
3.3 V, 2.5 V
V_DDOx
LVPECL
CLKxA
CLKxB
Keep termination close to
the receiver
50
50
V_TT = V_DDO – 2.0
50
50
3.3 V LVPECL
2.5 V LVPECL
a. DC-Coupled Termination of 50  to V_DDO – 2.0 V
Si5335
LVPECL
3.3 V, 2.5 V
V_DDOx
CLKxA
CLKxB
V_DDO V_DDO
Keep termination close to
the receiver
R₁
R₁
3.3 V LVPECL
2.5 V LVPECL
50
50
3.3 V LVPECL
R₂
R₂
V_T = V_DDO – 2.0 V
R₁ // R₂ = 50 
R₁ = 127 
R₂ = 82.5 
2.5 V LVPECL
R₁ = 250 
R₂ = 62.5 
b. DC-Coupled with Thevenin Termination
Figure 17. Interfacing the Si5335 to an LVPECL Receiver Using DC Coupling
28
Rev. 1.4