Si51210
T
WO
O
UTPUTS
F
ACTORY
P
ROGRAMMABLE
C
L O C K
G
ENERATOR
Features
Generates up to 2 CMOS clock
2.5 to 3.3 V voltage supply range
outputs from 3 to 200 MHz
0.25% to 1.0% spread spectrum
(center spread)
Accepts crystal or reference
clock input
Low cycle-cycle jitter
to 166 MHz reference clock input
Programmable output rise and
3
8 to 48 MHz crystal input
fall times
Programmable FSEL, SSEL,
Ultra small 6-pin TDFN package
SSON, PD, and OE input
(1.2 mm x 1.4 mm)
functions
Low power dissipation
Applications
Crystal/XO replacement
EMI reduction
Portable devices
Ordering Information:
See page 9.
Digital still camera
IP phone
Smart meter
Pin Assignments
Description
VDD
1
2
3
6
VSS
SSCLK2/REFCLK_D
FSEL/SSEL/SSON/
PD/OE1
SSCLK1/REFCLK
FSEL/SSEL/SSON/
OE2
The factory programmable Si51210 is industry’s lowest power, smallest
footprint and frequency flexible programmable clock generator targeting
low power, low cost and high volume consumer and embedded
applications. The device operates from a single crystal or an external
clock source and generates 1 to 2 outputs up to 200 MHz. They are
factory programmed to provide customized output frequencies, control
inputs and ac parameter tuning like output drive strength that are
optimized for customer board condition and application requirements.
XIN/CLKIN
XOUT
Si51210
5
4
Patents pending
Functional Block Diagram
XIN/
2
CLKIN
PLL with
Modulation
Control
XOUT 3
Programmable
Configuration
Register
Buffers,
Dividers,
and
Switch
Matrix
4 SSCLK1/
REFCLK/
0E2/FSEL/
SSEL/SS0N
VDD 1
VSS 6
V-REG
To Core
To Pin 4 and
Pin 5
5 SSCLK2/
REFCLK_D
0E1/FSEL/
SSEL/SS0N/PD
Preliminary Rev. 0.7 1/12
Copyright © 2012 by Silicon Laboratories
Si51210
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
SILABS [ SILICON LABORATORIES ]
