SI5345_16 Datasheet, PDF (15/60 Pages) Silicon Laboratories – 10-Channel, Any-Frequency, Any-Output Jitter Attenuator/ Clock Multiplier

Si5345/44/42 Rev D Data Sheet
Functional Description
3.9.1 Output Crosspoint
A crosspoint allows any of the output drivers to connect with any of the MultiSynths as shown in the figure below. The crosspoint config-
uration is programmable and can be stored in NVM so that the desired output configuration is ready at power up.
Multi
Synth
÷
N0n
N0d
t0
÷R0
VDDO0
OUT0
OUT0b
Multi
Synth
÷
N1n
N1d
t1
Multi
Synth
÷
N2n
N2d
t2
Multi
Synth
÷
N3n
N3d
t3
Multi
Synth
÷
N4n
N4d
t4
÷R1
÷R2
÷R3
÷R4
÷R5
÷R6
÷R7
÷R8
÷R9
VDDO1
OUT1
OUT1b
VDDO2
OUT2
OUT2b
VDDO3
OUT3
OUT3b
VDDO4
OUT4
OUT4b
VDDO5
OUT5
OUT5b
VDDO6
OUT6
OUT6b
VDDO7
OUT7
OUT7b
VDDO8
OUT8
OUT8b
VDDO9
OUT9
OUT9b
Figure 3.12. MultiSynth to Output Driver Crosspoint
3.9.2 Output Signal Format
The differential output swing and common mode voltage are both fully programmable covering a wide variety of signal formats including
LVDS and LVPECL. In addition to supporting differential signals, any of the outputs can be configured as LVCMOS (3.3 V, 2.5 V, or 1.8
V) drivers providing up to 20 single-ended outputs, or any combination of differential and single-ended outputs.
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