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Timing Selector Guide

SPRING 2014

YEAR

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 /

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

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

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

1.8, 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

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

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

1/2

1/3

1/2

1/3

3 - 166 (Clock), 8 - 48 (Xtal)

25/27 (Xtal)

10 - 100 (Clock), 25/27 (Xtal)

25/27 (Xtal)

3 to 200 MHz

3 to 133 MHz

3 to 200 MHz

8 kHz to 160 MHz

—

100 ps

2.5 to 3.3 V

1.8 V

2.5 to 3.3 V

2.5, 3.3 V

—

1.8, 2.5, 3.3 V

—

1.8, 2.5, 3.3 V

LVCMOS

TDFN6

TDFN8

TDFN6

TSSOP8

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 /

Any-Frequency, Any-Output CMOS Clocks

Silicon Labs’ highly flexible factory and I

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

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

1/8

25/27 (Xtal)

10 - 100 (Clock),

25/27 (Xtal)

5 - 200 (Clock)

25/27 (Xtal)

8 kHz - 160 MHz

1 - 200 MHz

100 ps

50 ps

2.5, 3.3 V

1.8, 2.5, 3.3 V

LVCMOS

QFN20

QFN24