SI5310 Datasheet, PDF (18/26 Pages) Silicon Laboratories – PRECISION CLOCK MULTIPLIER/REGENERATOR IC

Si5310
Clock source
or
differential buffer/driver
0.1 µF
Zo = 50 Ω
Si5310
2.5 kΩ
VDD
REFCLK +
100 Ω
10 kΩ
REFCLK –
0.1 µF
2.5 kΩ
10 kΩ
GND
102 Ω
0.1 µF
Zo = 50 Ω
2.5 kΩ
CLKIN -
100 Ω
10 kΩ
CLKIN +
( Example: REFCLK = CLKIN = 155.52MHz )
0.1 µF
VDD
2.5 kΩ
102 Ω
10 kΩ
GND
Figure 9. Single-Ended Input Termination for REFCLK & CLKIN (ac-coupled)
Si5310
VDD
100 Ω
CLKOUT+,
MULTOUT+ ^{0.1 µF}
VDD
50 Ω
Zo = 50 Ω
CLKOUT–,
MULTOUT– ^{0.1 µF}
Zo = 50 Ω
100 Ω
VDD
50 Ω
VDD
Figure 10. Output Termination for CLKOUT and MULTOUT (ac-coupled)
18
Rev. 1.2