Timing Selector Guide
SPRING 2014
YEAR
10
10 YEAR
OPER ATING LIFE
BEST-IN-CL ASS STABILIT Y
OVER TEMPER ATURE
2 WEEK LEAD TIMES
THE INDUSTRY'S BEST
LOW- COST, HIGH-VOLUME
CMOS FOUNDRIES
2 / C L O C K A N D O S C I L L AT O R S E L E C T O R
Clock and Oscillator Timing IC Solutions
Silicon Labs is a one stop shop
providing a complete portfolio of
clocks, buffers, oscillators and jitter attenuating clocks.
One-Stop-Shop
— industry-leading portfolio of oscillators, clock
generators, clock buffers and jitter attenuating clocks
Fast
— custom oscillators and clocks in minutes, not months
Clock Tree Services
— receive clock tree design guidance from Silicon
Labs’ timing experts in under 48 hours
Support
— expert technical support and deep applications knowledge
to accelerate your development schedules
Flexible
— Silicon Labs’ clocks and oscillators support any combination
of frequencies, minimizing BOM count and complexity
Customized
— our flagship products are highly customizable over the
web and ship in days, not weeks
Performance
— highly-integrated, low jitter timing solutions simplify
design and optimize system performance
C L O C K A N D O S C I L L AT O R S E L E C T O R /
3
Clock Generation
WEB-CONFIGURABLE FACTORY-CUSTOMIZED CLOCK GENERATORS AVAILABLE AT:
www.silabs.com/custom-timing
Any-Frequency, Any-Output Differential/CMOS Clocks
Silicon Labs’ differential + LVCMOS clock generators provide any rate, any output frequency synthesis. Any
combination of output frequencies can be generated exactly with 0 ppm error. Independent signal format and
VDDO options provide integrated level translation, supporting LVPECL/LVDS/HCSL/LVCMOS clock generation up
to 710 MHz with sub 1 ps rms phase jitter.
Si5338 FEATURES
• Generates any frequency on any output, from 160 kHz
to 350 MHz and select frequencies to 710 MHz
• Exact clock synthesis (0 ppm error)
• Crystal or clock input
• 4 differential outputs or 8 single-ended outputs
• Any format, on any output: LVPECL, LVDS, HCSL,
LVCMOS, HSTL, SSTL and CML
• Independent VDDO per output eliminates external
level translators (1.5, 1.8, 2.5, 3.3 V)
• Low phase jitter: 1 ps rms
• I
2
C programmable or pin-controlled
• Excellent PSRR, no discrete components
• Spread spectrum clock generation
• User-definable control pins: Powerdown,
Output Enable, Frequency Select, Spread Select
• Factory-customizable clocks w/2 week lead times
www.silabs.com/custom-timing
DATACOM LINE CARD
25 MHz 1.8 V CMOS
GbE
Ethernet
PHY
GbE
Ethernet
PHY
25 MHz 1.8 V CMOS
25 MHz
Generator
Clock
Si5335/38
Si5338
66.6 MHz ±5% 3.3 V CMOS
µProcessor
100 MHz 2.5 V LVPECL
FPGA
1.544 MHz/2.048 MHz 3.3 V CMOS
T1/E1
Framer
PART NUMBER CONTROL
CLOCK
INPUT
INPUT/
FREQUENCY (MHZ)
OUTPUTS
OUTPUT
FREQUENCY (MHZ)
PHASE
JITTER
(RMS)
VDD
VDDO
OUTPUT
PACKAGE
Si5334
Si5335
Si5338
Pin
Pin
I
2
C
1/4
1/4
1/4
5 - 710 (Clock),
8 - 30 (Xtal)
10 - 350 (Clock),
25/27 (Xtal)
5 - 710 (Clock),
8 - 30 (Xtal)
0.16 - 710 MHz
0.16 - 350 MHz
0.16 - 200 MHz
1 - 350 MHz
0.16 - 710 MHz
0.16 - 350 MHz
0.16 - 200 MHz
1.0 ps
1.0 ps
1.0 ps
1.8, 2.5, 3.3 V
1.8, 2.5, 3.3 V
1.8, 2.5, 3.3 V
1.8, 2.5, 3.3 V
1.8, 2.5, 3.3 V
1.8, 2.5, 3.3 V
LVCMOS, LVDS, LVPECL,
HCSL, SSTL, HSTL
LVCMOS, LVDS, LVPECL,
HCSL, SSTL, HSTL, CML
LVCMOS, LVDS, LVPECL,
HCSL, SSTL, HSTL, CML
QFN24
QFN24
QFN24
4 / C L O C K A N D O S C I L L AT O R S E L E C T O R
Tiny CMOS Clocks
Silicon Labs’ highly flexible, factory and I
2
C programmable tiny clock LVCMOS generators can be customized to generate
multiple frequencies with significantly lower jitter, lower power and smaller size than competing solutions. Customization
options are available for frequency selection, output enable control, or minimizing EMI, including customizable spread
percentage, modulation rate, output impedance and rise time/fall time.
Si512xx TINY CLOCK FEATURES
• Up to three customizable output frequencies from
3 to 200 MHz
• Accepts 8 to 48 MHz crystal or 3 to 166 MHz external
reference clock
• Low cycle-to-cycle jitter: <150 ps
• Low power: 2.3 mA (typ) at 48 MHz output,
25 MHz xtal in and VDD = 3.3 V
• Center spread modulation from 0.25 to 1.0%,
with 0.125% resolution
• Programmable spread modulation rate from 30 - 62 kHz
• Customizable drive strengths (four levels
for each output)
• Customizable control pins (PD#/OE/SSON#/FS)
• Supply range: 1.8 V for Si51214;
2.5 to 3.3 V for other devices
• Ultra-compact packages
• 6-pin TDFN (1.2 mm x 1.4 mm x 0.75 mm)
• 8-pin TDFN (1.6 mm x 1.4 mm x 0.75 mm)
• Factory programmable OTP
• Two week sample lead time
DIGITAL STILL CAMERA
38 MHz/
40 MHz
CMOS/CCD Driver/
AFE
Si51210
Tiny Clock
Generator
27 MHz
Memory
WLAN
12 MHz
Si51211
Tiny Clock
Generator
12 MHz
74.25 MHz/
74.1758 MHz
µProcessor
USB
HDMI Cable
LCD Driver
PART NUMBER
CONTROL
CLOCK
INPUT/
OUTPUTS
INPUT
FREQUENCY (MHz)
OUTPUT
FREQUENCY (MHz)
PERIOD
JITTER
(PP)
VDD
VDDO
OUTPUT
PACKAGE
Si51210
Si51211
Si51214
Si51219
Si5350A
Si5350C
Si5351A
Pin
Pin
Pin
Pin
Pin
Pin
I
2
C
1/2
1/3
1/2
1/3
1/3
1/3
1/3
3 - 166 (Clock), 8 - 48 (Xtal)
3 - 166 (Clock), 8 - 48 (Xtal)
3 - 166 (Clock), 8 - 48 (Xtal)
3 - 166 (Clock), 8 - 48 (Xtal)
25/27 (Xtal)
10 - 100 (Clock), 25/27 (Xtal)
25/27 (Xtal)
3 to 200 MHz
3 to 200 MHz
3 to 133 MHz
3 to 200 MHz
8 kHz to 160 MHz
8 kHz to 160 MHz
8 kHz to 160 MHz
—
—
—
—
100 ps
100 ps
100 ps
2.5 to 3.3 V
2.5 to 3.3 V
1.8 V
2.5 to 3.3 V
2.5, 3.3 V
2.5, 3.3 V
2.5, 3.3 V
—
1.8, 2.5, 3.3 V
—
1.8, 2.5, 3.3 V
1.8, 2.5, 3.3 V
1.8, 2.5, 3.3 V
1.8, 2.5, 3.3 V
LVCMOS
LVCMOS
LVCMOS
LVCMOS
LVCMOS
LVCMOS
LVCMOS
TDFN6
TDFN8
TDFN6
TSSOP8
MSOP10
MSOP10
MSOP10
C L O C K A N D O S C I L L AT O R S E L E C T O R /
5
Any-Frequency, Any-Output CMOS Clocks
Silicon Labs’ highly flexible factory and I
2
C programmable LVCMOS clock generators can be customized to generate
multiple independent non-integer-related frequencies with equivalent frequency synthesis capability of 8 PLLs, with exact
frequency synthesis (0 ppm error), significantly lower jitter, lower power and smaller size than competing solutions. Factory
customization options are available to minimize EMI, including configurable edge rates, output impedance, output skew
and spread spectrum.
Si5350 FEATURES
• Generates any frequency on any output,
8 kHz to 160 MHz
• Exact clock synthesis: 0 ppm error
• Similar frequency flexibility as 8 independent PLLs
• Crystal or clock input
• <100 ps pk-pk period jitter
• Glitchless switching between output frequencies
• I
2
C programmable or pin-controlled
• Excellent PSRR: no discrete components
• Two week sample lead time for any custom clock
• Integrated load capacitors
• Spread spectrum clock generation
-0.1 to -2.5% down, ±0.1 to ±1.5% center
• User-definable control pins Powerdown,
Output Enable, Spread Enable, Frequency
Select control pins
DVD PLAYER
User
Interface
MOD
RF Video Out
DVD Drive
Video
Encoder
Triple
DAC
S-Video/CVBS
SDRAM
DVD
ASSP
Triple
DAC
Si5350
Clock
Generator
ROM/Flash
Component
Video
Digital
Audio
Transmitter
Headphones
AMP
Microphone
Si3000
Audio
Codec
Line Out
Speakers
PART NUMBER
CONTROL
CLOCK
INPUT/
OUTPUTS
INPUT
FREQUENCY
(MHz)
OUTPUT
FREQUENCY (MHz)
PERIOD
JITTER
(PP)
VDD
VDDO
OUTPUT
PACKAGE
Si5350A/51A
Si5350B/51B
Si5350C/51C
Si5355
Pin/I
2
C
Pin/I
2
C
Pin/I
2
C
Pin
1/8
1/8
1/8
1/8
25/27 (Xtal)
25/27 (Xtal)
10 - 100 (Clock),
25/27 (Xtal)
5 - 200 (Clock)
25/27 (Xtal)
8 kHz - 160 MHz
8 kHz - 160 MHz
8 kHz - 160 MHz
1 - 200 MHz
100 ps
100 ps
100 ps
50 ps
2.5, 3.3 V
2.5, 3.3 V
2.5, 3.3 V
1.8, 2.5, 3.3 V
1.8, 2.5, 3.3 V
1.8, 2.5, 3.3 V
1.8, 2.5, 3.3 V
1.8, 2.5, 3.3 V
LVCMOS
LVCMOS
LVCMOS
LVCMOS
QFN20
QFN20
QFN20
QFN24
