SI5356A Datasheet, PDF (1/29 Pages) Silicon Laboratories – IC PROGRAMMABLE, ANY-FREQUENCY 1–200 MHZ, QUAD FREQUENCY 8-OUTPUT CLOCK GENERATOR

Si5356A
I ²C P ROGRAMMABLE, A NY- F REQUENCY 1 – 2 0 0 M H Z,
QUAD FREQUENCY 8-OUTPUT CLOCK GENERATOR
Features
 Generates any frequency from 1 to
 OEB pin disables all outputs or per
200 MHz on each of the 4 output banks
bank OEB control via I²C
 Programmable frequency configuration _{ Low jitter: 50 ps pk-pk (typ), 75 ps}
 Guaranteed 0 ppm frequency synthesis
pk-pk period jitter (max)
error for any combination of frequencies _{ Excellent PSRR performance}
 25 or 27 MHz xtal or 5–200 MHz input clk _{eliminates need for external power}
 Eight CMOS clock outputs
supply filtering
 Easy to use programming software
 Low power: 45 mA (core)
 Configurable “triple A” spread spectrum:  Core VDD: 1.8, 2.5, or 3.3 V
any clock, any frequency, and with any _{ Separate VDDO for each bank of}
spread amount
outputs: 1.8, 2.5, or 3.3 V
 Programmable output phase adjustment _{ Small size: 4x4 mm 24-QFN}
with <20 ps error
 Industrial temperature range:
 Interrupt pin indicates LOS or LOL
–40 to +85 °C
Ordering Information:
See page 23.
Pin Assignments
Applications
 Printers
 Audio/video
 DSLAM
 Storage area networks
 Switches/routers
 Servers
Description
The Si5356 is a highly flexible, I²C programmable clock generator capable of
synthesizing four completely 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 Silicon Laboratories' 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 oscillators with a single device. Each output bank is independently
configurable to support 1.8, 2.5, or 3.3 V. The device is programmable via an I²C/
SMBus-compatible serial interface and supports operation from a 1.8, 2.5, or
3.3 V core supply.
ToTpopVVieieww
2424 2323 2222 2121 2020 1199
XAXA1 1
1188 CCLLKK22
XBXB2 2
1177 CCLLKK33
I2C_PL1SB3 3
CLCKILNKIN4 4
GGGNGNNDNDDD
1166 VVDDDDOOB
1155 VVDDDDOOC
SSCP_4DIS5 5
1144 _CCLLKK44
PO5EB6 6
1133 _CCLLKK55
7 7 8 8 9 9 1010 111 1122
Functional Block Diagram
Rev. 1.3
Copyright © 2014 by Silicon Laboratories
Si5356A