Si5334
20
Preliminary Rev. 0.16
8
LOSLOL
O
Open Drain
Loss of Signal or Loss of Lock Indicator.
0 = No LOS or LOL condition.
1 = A LOS or LOL condition has occurred.
For this pin a 1–5 k
pull-up resistor to a voltage is
required. This voltage may be as high as 3.63 V
regardless of the voltage on pin 7.
9
CLK3B
O
Multi
Output Clock B for Channel 3
May be a single-ended output or half of a differential out-
put with CLK3A being the other differential half. If
unused leave this pin floating.
10
CLK3A
O
Multi
Output Clock A for Channel 3
May be a single-ended output or half of a differential
output with CLK3B being the other differential half. If
unused leave this pin floating.
11
VDDO3
VDD
Supply
Output Clock Supply Voltage
Supply voltage (3.3, 2.5, 1.8, or 1.5 V) for CLK3A,B. A
0.1 F capacitor must be located very close to this pin. If
CLK3 is not used, this pin must be tied to VDD (pin 7,
24).
12
IN7
I
Supply
SSPB.
When low, Spread Spectrum is enabled on every output
clock that is programmed for Spread Spectrum. This
option is available on the Si5334K/L/M.
On an Si5334 that does not contain the spread spectrum
functionality, this pin should be connected to GND.
13
CLK2B
O
Multi
Output Clock B for Channel 2
May be a single-ended output or half of a differential
output with CLK2A being the other differential half. If
unused leave this pin floating.
14
CLK2A
O
Multi
Output Clock A for Channel 2
May be a single-ended output or half of a differential
output with CLK2B being the other differential half. If
unused leave this pin floating.
15
VDDO2
VDD
Supply
Output Clock Supply Voltage.
Supply voltage (3.3, 2.5, 1.8, or 1.5 V) for CLK2A,B.
A 0.1 F capacitor must be located very close to this pin.
If CLK2 is not used, this pin must be tied to VDD (pin 7,
24).
16
VDDO1
VDD
Supply
Output Clock Supply Voltage.
Supply voltage (3.3, 2.5, 1.8, or 1.5 V) for CLK1A,B.
A 0.1 F capacitor must be located very close to this pin.
If CLK1 is not used, this pin must be tied to VDD (pin 7,
24).
Table 15. Si5334 Pin Descriptions (Continued)
Pin #
Pin Name
I/O
Signal Type
Description