SI5334 Datasheet, PDF (20/37 Pages) Silicon Laboratories – PIN-CONTROLLED ANY-FREQUENCY, ANY-OUTPUT QUAD CLOCK GENERATOR

Si5334
Pin #
Pin Name
3
IN3
4
IN4
5,6
IN5/IN6
7
VDD
Table 15. Si5334 Pin Descriptions (Continued)
I/O
Signal Type
Description
Keep the input level > –0.1 V and < V_DD+.1 V.
REFCLKSE
High impedance input for single-ended clock signals
such as CMOS. The input should be dc-coupled.
PINC
This pin function is active for devices Si5334D/E/F. A
positive pulse of greater than 100 ns width (followed by
>100 ns low) will increase the input to output device
I
Multi
latency by a factory-programmed amount. The function
of this pin is factory programmed.
FINC
This pin function is active for devices Si5334G/H/J. A
positive pulse of greater than 100 ns width (followed by
>100 ns low) will increase the output frequency of the
clock output by a factory-programmed amount. The
function of this pin is factory-programmed.
If this pin is unused, it should be grounded.
Keep the input level > –0.1 V and < VDD+ 0.1 V.
FDBKSE
High Impedance input for single-ended clock signals,
such as CMOS, when the zero delay mode of operation
is required. This input should be dc-coupled.
PDEC
This pin function is active for devices Si5334D/E/F. A
positive pulse of greater than 100 ns width (followed by
>100 ns low) will decrease the input to output device
I
LVCMOS latency by a factory-programmed amount. The function
of this pin is factory-programmed.
FDEC
This pin function is active for devices Si5334G/H/J. A
positive pulse of greater than 100 ns width (followed by
>100 ns low) will decrease the output frequency of the
clock output by a factory-programmed amount. The
function of this pin is factory-programmed.
I
VDD
Multi
Supply
If this pin is unused, it should be grounded.
FDBK/FDBKB
These pins form a differential input for feedback clock
signals when a zero delay mode of operation is in effect.
Always AC couple into these pins. When not is use
leave FDBK unconnected and connect FDBKB to
ground.
Core Supply Voltage
The device operates from a 1.8, 2.5, or 3.3 V supply. A
0.1 µF bypass capacitor should be located very close to
this pin.
20
Rev. 1.2