SI51210 Datasheet, PDF (1/12 Pages) Silicon Laboratories – TWO OUTPUTS FACTORY PROGRAMMABLE CLOCK GENERATOR

Si51210
TWO OUTPUTS FACTORY PROGRAMMABLE CLOCK
GENERATOR
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
 Accepts crystal or reference
(center spread)
clock input
 Low cycle-cycle jitter
3 to 166 MHz reference clock input _{ Programmable output rise and}
8 to 48 MHz crystal input
fall times
 Programmable FSEL, SSEL,
SSON, PD, and OE input
 Ultra small 6-pin TDFN package
(1.2 mm x 1.4 mm)
functions
 Low power dissipation
Applications
 Crystal/XO replacement
 EMI reduction
 Portable devices
 Digital still camera
 IP phone
 Smart meter
Ordering Information:
See page 9.
Pin Assignments
Description
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.
VDD 1
XIN/CLKIN 2 Si51210
XOUT 3
6 VSS
SSCLK2/REFCLK_D
5 FSEL/SSEL/SSON/
PD/OE1
SSCLK1/REFCLK
4 _{FSEL/SSEL/SSON/}
OE2
Patents pending
Functional Block Diagram
XIN/
CLKIN
2
XOUT ³
VDD 1
VSS 6
PLL with
Modulation
Control
V-REG
To Core
Programmable
Configuration
Register
To Pin 4 and
Pin 5
Buffers,
Dividers,
and
Switch
Matrix
4 SSCLK1/
REFCLK/
0E2/FSEL/
SSEL/SS0N
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.