Si5355
ANY-FREQUENCY 1–200 MHZ QUAD FREQUENCY
8-OUTPUT CLOCK GENERATOR
Features
Generates any frequency from 1 to
200 MHz on each of the 4 output banks
Eight CMOS clock outputs
Guaranteed 0 ppm frequency synthesis
error for any combination of frequencies
Excellent PSRR performance
eliminates need for external power
supply filtering
Low power: 45 mA (core)
Core VDD: 1.8, 2.5, or 3.3 V
25 or 27 MHz xtal or 5–200 MHz input clk Separate VDDO for each bank of
outputs: 1.8, 2.5, or 3.3 V
Small size: 4x4 mm 24-QFN
Industrial temperature range:
–40 to +85 °C
Five programmable control pins (output
enable, frequency select, reset)
Separate OEB pins to disable individual
banks or all outputs
Ordering Information:
See page 17.
Loss of signal output
Low 50 ps (typ) pk-pk period jitter
Phase jitter: 2 ps rms 12 kHz–20 MHz
Custom versions available using
ClockBuilder™ web utility
Samples available in 2 weeks
Pin Assignments
Applications
Printers
Storage
Switches/routers
Computing
Servers
OC-3/OC-12 line cards
Top View
Audio/video
Networking
Communications
24
23
22
21
20
19
18
XA
1
CLK2
17
16
2
3
XB
P1
CLK3
Description
VDDOB
GGNNDD
The Si5355 is a highly flexible clock generator capable of synthesizing four com-
pletely non-integer related frequencies up to 200 MHz. The device has four banks
of outputs with each bank supporting two CMOS outputs at the same frequency.
Using Skyworks Solutions' patented MultiSynth fractional divider technology, all
outputs are guaranteed to have 0 ppm frequency synthesis error regardless of
configuration, enabling the replacement of multiple clock ICs and crystal oscilla-
tors with a single device. Through a flexible web configuration utility called Clock-
Builder™ (https://www.skyworksinc.com/en/application-pages/clockbuilder-pro-
software), factory-customized pin-controlled Si5355 devices are available in two
weeks without minimum order quantity restrictions. The Si5355 supports up to
three independent, pin-selectable device configurations, enabling one device to
replace three separate clock ICs.
15
14
13
CLKIN
4
5
6
VDDOC
CLK4
P4
P5
CLK5
7
8
9
10
11
12
Functional Block Diagram
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
Rev. 1.2 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 4, 2021