Pin Number
Pin Name
Pin Type
Function
5
XA/CLKIN1
I or P
Si5332A/B/C/D
These pins are used for an optional XTAL input when operating the device
in asynchronous mode (i.e. free-run mode). Refer to Section
for recommended crystal specifications.
Si5332E/F/G/H/L (Embedded Crystal)
No Connect. Do not connect these pins 5 or 6 to anything.
6
XB
I or P
7
VDDA
P
Core Supply Voltage. Connect to 1.8–3.3 V.
See the
Si5332 Family Reference Manual
for power supply filtering recom-
mendations.
Must be connected to same voltage as VDD_DIG and VDD_XTAL.
8
INPUT1
I
Universal HW Input pin. This hardware input pin is user definable through
ClockBuilder Pro. Refer to Section
3.7 Universal Hardware Input Pins
for a
list of definitions that hardware input pins can be used for.
9
SCLK
I
Serial Clock Input
This pin functions as the serial clock input for I
2
C.
SCLK is a digital input internally referenced to VDD_DIG. SCLK must have
an external pull-up resistor (I
2
C bus pull-up) to same voltage as VDD_DIG.
10
SDA
I/O
Serial Data Interface
This is the bidirectional data pin (SDA) for the I
2
C mode.
SDA is a digital open-drain bi-directional internally referenced to VDD_DIG.
SDA must have an external pull-up resistor (I
2
C bus pull-up) to same volt-
age as VDD_DIG.
11
OUT0b
O
Output Clock
These output clocks support a programmable signal swing and common
mode voltage. Desired output signal format is configurable using register
control. Termination recommendations are provided in
3.5.3 LVCMOS Output Terminations
should be left unconnected.
12
OUT0
O
13
VDDO0
P
Supply Voltage (1.8–3.3 V, or 1.5 V for CMOS only) for OUT0
See the
Si5332 Family Reference Manual
for power supply filtering recom-
mendations.
Leave VDDOx pins of unused output drivers unconnected. An alternate
option is to connect the VDDOx pin to a power supply and disable the
output driver to minimize current consumption.
14
OUT1b
O
Output Clock
These output clocks support a programmable signal swing & common mode
voltage. Desired output signal format is configurable using register control.
Termination recommendations are provided in
3.5.2 Differential Output Ter-
3.5.3 LVCMOS Output Terminations
be left unconnected.
15
OUT1
O
16
VDDO1
P
Supply Voltage (1.8–3.3 V, or 1.5 V for CMOS only) for OUT1
See the
Si5332 Family Reference Manual
for power supply filtering recom-
mendations.
Leave VDDOx pins of unused output drivers unconnected. An alternate
option is to connect the VDDOx pin to a power supply and disable the
output driver to minimize current consumption.
Si5332 Data Sheet • Pin Descriptions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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Rev. 1.3 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • November 16, 2021
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