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EMI Reduction Clocks

Si5355/56 Programmable Clock Generator ICs

Silicon Labs' programmable spread spectrum clock generators feature a wide range of programming options that allow system designers to minimize electromagnetic interference (EMI) at the application level.

Configurable parameters to reduce electromagnetic interference include a wide range of signal integrity adjustments like rise/fall times, output impedance, drive strength, programmable edge rates, programmable skew and spread spectrum percentage/modulation rate.

More Info...

Using Configurable Tiny Clocks to Reduce Space, Power and EMI

Features

SL16010/20 and SL15100/300/303

Output frequencies from 1 to 200 MHz
CLKOUT, REFOUT or SSCLK output options
CLKIN or XO input options
8 to 48 MHz crystal input range
1 to 166 MHz clock input range
Spread percent from 0 to 5.0%
Down or center spread options
Spread modulation frequency from 16 to 128 kHz
On-chip programmable crystal capacitive load (CL): 8 to 20 pF
User-definable control pins: PD#, OE or SSON#
Frequency select, spread select
7 drive strength (programmable tr/tf) options

Si5350/51, Si5355 and Si5334/35/38

Any frequency from 1 MHz to 200 MHz
Single input with 8 CMOS outputs organized into 4 banks
Independent VDDO per output eliminates external level translators (1.8, 2.5, 3.3 V)
Low period jitter: 50 ps pk-pk
Crystal (25 or 27 MHz) or clock (5 to 200 MHz) input
I²C programmable (Si5338/56) and ClockBuilder web-configurable (Si5335) support spread spectrum

Tiny Clock Family Si51210/11/14/19

6TDFN Tiny Clock 2 outputs = 1.4 x 1.2 = 1.7 mm²
8TDFN Tiny Clock 3 outputs = 1.4 x 1.6 = 2.2 mm²
Ultra-low power dissipation (6 mA TYP for 3 outputs)
< 2 week lead time for factory-customized parts
Accepts crystal or reference clock input
Generates up to 3 CMOS outputs (3 to 200 MHz)
Programmable FSEL, SSEL, SSON, PD and OE
1.8, 2.5-3.3 V voltage supply range

Si52142/43/44/46/47

Low power consumption (< 6 mA) HCSL output drivers
Supports 2, 4, 6, 9 PCIe outputs
Integrated termination resistors on PCIe outputs
I²C control interface for AC parameter and frequency tuning
Up to 9 PCIe outputs from clock generator
Operate from widely available, low cost crystals (25 MHz)
Supports industrial grade (-40 to + 85° C)
24-, 32- and 48-pin QFN packages

Applications

Printers
Multi-Function Printers
Digital Copiers
PC/NBPC
LCD Monitors
HDTV
Switches and Routers
Ethernet Appliances
Storage
Servers
Embedded

Technologies

Learn More: Silicon Labs' MultiSynth technology

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Data Sheet (23)

Document Name	Description	Version	Last Updated
Si51210.pdf	Si51210 Data Sheet	0.7	1/27/2012
Si51211.pdf	Si51211 Data Sheet	0.7	1/27/2012
Si51214.pdf	Si51214 Data Sheet	0.7	1/27/2012
Si51219.pdf	Si51219 Data Sheet	0.7	1/27/2012
Si52142.pdf	Si52142 Data Sheet	0.1	1/9/2012
Si52143.pdf	Si52143 Data Sheet	0.1	1/9/2012
Si52144.pdf	Si52144 Data Sheet	0.1	1/9/2012
Si52146.pdf	Si52146 Data Sheet	1.0	1/9/2012
Si52147.pdf	Si52147 Data Sheet	1.0	4/26/2012
Si5330.pdf	Si5330 Data Sheet	1.0	4/5/2012
Si5335.pdf	Si5335 Data Sheet	1.0	4/9/2012
Si5338.pdf	Si5338 Data Sheet	1.1	3/28/2012
Si5351.pdf	Si5351 Data Sheet	0.95	8/2/2011
Si5356.pdf	Si5356A Data Sheet	1.0	5/1/2012
SL15100.pdf	SL15100 Data Sheet	1.8	3/8/2011
SL15100-38AH.pdf	SL15100-38AH Data Sheet	1.0	4/5/2012
SL15300.pdf	SL15300 Data Sheet	2.0	3/8/2011
SL15303.pdf	SL15303 Data Sheet	2.0	3/8/2011
SL16010.pdf	SL16010 Data Sheet	2.6	3/8/2011
SL16020.pdf	SL16020 Data Sheet	2.2	3/8/2011
SL28SRC01.pdf	SL28SRC01 Data Sheet	AA	3/8/2011
SL28SRC02.pdf	SL28SRC02 Data Sheet	AA	3/8/2011
SL28SRC04.pdf	SL28SRC04 Data Sheet	AA	3/8/2011

Data Short (1)

Document Name	Description	Version	Last Updated
Si5350-51_short.pdf	Si5350/51 Data Short	10.20.10	11/3/2010

User Guides (11)

Document Name	Description	Version	Last Updated
Si51210-14-EVB.pdf	Si51210/14-EVB Tiny Clock User's Guide	0.1	1/26/2012
Si51211-EVB.pdf	Si51211-EVB User's Guide	0.1	1/26/2012
Si51219-EVB.pdf	Si51219-EVB User's Guide	0.1	1/26/2012
Si52144-EVB.pdf	Si52144-EVB User's Guide	0.1	1/9/2012
Si52147-EVB.pdf	Si52147-EVB User's Guide	0.1	1/9/2012
Si5338-56-PROG-EVB.pdf	Si5338/56-PROG-EVB Users Guide	0.4	6/25/2010
Si5338-EVB.pdf	Si5338-EVB User Guide	1.4	11/16/2011
Si5356EVB.pdf	Si5356-EVB User Guide	0.2	6/25/2010
Si535x-20QFN-EVB.pdf	Si535x-20QFN-EVB User's Guide	0.1	11/2/2010
Si535x-24QSOP-EVB.pdf	Si535x-24QSOP-EVB User's Guide	0.2	11/2/2010
Si5xx-ML52x-EVB.pdf	Si5xx-ML52x-EVB User Guide	0.2	9/23/2009

Application Notes (16)

Document Name	Description	Version	Last Updated
AN360.pdf	AN360: Crystal Selection Guide for Si533x and Si5355/56 Devices	0.5	3/28/2012
AN377.pdf	AN377: Timing and Synchronization in Broadcast Video	0.1	9/9/2009
AN408.pdf	AN408: Termination Options for Any-Frequency, Any Output Clock Generators and Clock Buffers	0.4	11/23/2010
AN428.pdf	AN428: Jump Start: In-System, Flash-Based Programming for Silicon Labs’ Timing Products	0.6	10/5/2010
AN473.pdf	AN473: Configuring the Si5338 Evaluation Board in Zero Delay Mode	0.1	12/10/2009
AN491.pdf	AN491: Power Supply Rejection for Low Jitter Clocks	0.1	4/2/2010
AN551.pdf	AN551: Crystal Selection Guide for Si5350/51 Devices	0.3	3/13/2012
AN554.pdf	AN554: Si5350/51 PCB Layout Guide	0.1	11/2/2010
an56.pdf	AN56: Calculating Total Output Jitter for PLLs	0.3	5/4/2012
AN562.pdf	AN562: PCI Express 3.0 Jitter Requirements	0.1	1/5/2011
AN581.pdf	AN581: Meeting SerDes Jitter Requirements Simplified with Silicon Labs Clocks and Oscillators	0.1	9/2/2011
AN619.pdf	AN619: Manually Generating an Si5351 Register Map	0.1	12/19/2011
AN623.pdf	AN623: Customizing the Si5335 with ClockBuilder	1.0	11/17/2011
AN624.pdf	AN624: Si5335 Solves Timing Challenges in PCI Express, Computing, Communications and FPGA-Based Systems	1.0	11/17/2011
AN636.pdf	AN636: Si5214x and Si5315x Signal Integrity Tuning to Improve Connectivity	0.1	1/12/2012
AN565.pdf	Configuring the Si5356A	0.1	4/25/2011

White Papers (6)

Document Name	Description	Version	Last Updated
Configurable-Tiny-Clocks-Reduce-Space-Power-and-EMI.pdf	Configurable Tiny Clocks Reduce Space, Power and EMI in Consumer Electronics Designs	1.0	1/27/2012
MultiSynthWhitePaper.pdf	MultiSynth White Paper	041510	4/15/2010
Reducing-EMI_WP.pdf	Reducing EMI and Improving Signal Integrity Using Spread Spectrum Clocking	1.0	5/31/2011
PCIe-Clock-Source-Selection.pdf	Selecting the Optimum PCIe Clock Source	1.0	1/10/2012
Si5350-51 Frequency Shifting_WP.pdf	Si5350-51 Frequency Shifting White Paper	0.1	11/2/2010
Timing-ICs-Keep-Beat-with-Needs-of-Todays-Embedded-Market.pdf	Timing ICs Keep Beat with Needs of Today’s Embedded Market	1.0	11/21/2011

Miscellaneous (8)

Document Name	Description	Version	Last Updated
ppr-programmable-product-request-form.docx	Programmable Product Request Form (PPR)	3.0	3/23/2012
Si5338-RM.pdf	Si5338 Reference Manual: Configuring the Si5338 without ClockBuilder Desktop (replaces AN411)	1.0	3/28/2012
Si5350-TMSTK_QS_Guide.pdf	Si5350 Timing ToolStick Quick-Start Guide	0.1	11/2/2010
Silicon-Labs-Timing-Cross-Reference.pdf	Silicon Labs Timing Cross-Reference to Xilinx, Altera and Lattice FPGA Devices	3.0	5/3/2012
timing-solutions-for-cavium-processors.pdf	Silicon Labs' Timing Solutions for Cavium Processors	1.2	7/15/2011
timing-solutions-for-freescale-processors.pdf	Silicon Labs' Timing Solutions for Freescale Processors	1.0	2/10/2012
Timing-Solutions-for-Altera.pdf	Timing Solutions for Altera	0.3	12/7/2011
timing-solutions-for-plx-technology.pdf	Timing Solutions for PLX Technology	1.0	11/8/2011

PCN (9)

Document Name	Description	Version	Last Updated
1107132 Si5330, Si5334, Si5338, Si5355, Si5356 Shipment Media Change std.pdf	1107132 Si5330, Si5334, Si5338, Si5355, Si5356 Shipment Media Change std
11090810 Test to UTL std.pdf	11090810 Test to UTL std
1109084_SL Assembly Transfer to UTAC Thailand std reissue.pdf	1109084 SL Assembly Transfer to UTAC Thailand std reissue
1110101B_Bulletin to expand OFC for ship OSEP parts.pdf	1110101B_Bulletin to expand OFC for ship OSEP parts
1203281B_Si5338_DocumentationUpdate_Bulletin_std.pdf	1203281B_Si5338_DocumentationUpdate_Bulletin_std
1204051B_Si5330 Datasheet v1.0 availability-Silicon_Labs Bulletin.pdf	1204051B_Si5330 Datasheet v1.0 availability-Silicon_Labs Bulletin
1204091B_ClockBuilder Desktop Software v5.0.0 Availability-Silicon_Labs.pdf	1204091B_ClockBuilder Desktop Software v5.0.0 Availability-Silicon_Labs
1204101B_Si5335_Datasheet_v1.0_availability_Bulletin.pdf	1204101B_Si5335_Datasheet_v1.0_availability_Bulletin
1205011B_Si5356A_Si5355_Datasheet_v1.0_Availability_Bulletin.pdf	1205011B_Si5356A_Si5355_Datasheet_v1.0_Availability_Bulletin

Development Tools

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Software (3)

Document Name	Description	Version	Updated
AN428SW.zip	AN428 Jumpstart Software Ver 1.3	1.3	8/23/2010
release_notes_clockbuilder.txt	Release Notes for ClockBuilder Desktop		6/27/2011
ClockBuilderDesktopSwInstall.zip	Si5335/38/51/56 ClockBuilder Desktop Software Version 5.0	5.0	3/17/2012

Models (35)

Document Name	Description	Version	Updated
si5330a-a00200-gm.ibs	Si5330A a00200 IBIS Model	3.1	11/9/2010
si5330a-a00202-gm.ibs	Si5330A a00202 IBIS Model	3.1	11/9/2010
si5330b-a00204-gm.ibs	Si5330B a00204 IBIS Model	3.2	11/21/2010
si5330b-a00206-gm.ibs	Si5330B a00206	3.2	11/21/2010
si5330b-a00205-gm.ibs	Si5330B a00305 IBIS Model	3.2	11/21/2010
si5330c-a00207-gm.ibs	Si5330C a00207 IBIS Model	3.2	11/21/2010
si5330c-a00208-gm.ibs	Si5330C a00208 IBIS Model	3.2	11/21/2010
si5330c-a00209-gm.ibs	Si5330C a00209 IBIS Model	3.2	11/21/2010
si5335A-axxxxx-gmr.ibs	Si5335A IBIS Model	3.2	11/30/2011
si5335B-axxxxx-gmr.ibs	Si5335B IBIS Model	3.2	11/30/2011
si5335C-axxxxx-gmr.ibs	Si5335C IBIS Model	3.2	11/30/2011
si5335D-axxxxx-gmr.ibs	Si5335D IBIS Model	3.2	11/30/2011
si5338a-axxxxx-gm.ibs	Si5338A axxxxx IBIS Model	3.6	6/14/2011
si5338b-axxxxx-gm.ibs	Si5338B axxxxx IBIS Model	3.6	6/14/2011
si5338c-axxxxx-gm.ibs	Si5338C axxxxx IBIS Model	3.6	6/14/2011
si5338d-axxxxx-gm.ibs	Si5338D axxxxx IBIS Model	3.6	6/14/2011
si5338e-axxxxx-gm.ibs	Si5338E axxxxx IBIS Model	3.6	6/14/2011
si5338f-axxxxx-gm.ibs	Si5338F axxxxx IBIS Model	3.6	6/14/2011
si5338g-axxxxx-gm.ibs	Si5338G axxxxx IBIS Model	3.6	6/14/2011
si5338h-axxxxx-gm.ibs	Si5338H axxxxx IBIS Model	3.6	6/14/2011
si5338j-axxxxx-gm.ibs	Si5338J axxxxx IBIS Model	3.6	6/14/2011
si5338k-axxxxx-gm.ibs	Si5338K axxxxx IBIS Model	3.6	6/14/2011
si5338l-axxxxx-gm.ibs	Si5338L axxxxx IBIS Model	3.6	6/14/2011
si5338m-axxxxx-gm.ibs	Si5338M axxxxx IBIS Model	3.6	6/14/2011
si5338n-axxxxx-gm.ibs	Si5338N axxxxx IBIS Model	3.6	6/14/2011
si5338p-axxxxx-gm.ibs	Si5338P axxxxx IBIS Model	3.6	6/14/2011
si5338q-axxxxx-gm.ibs	Si5338Q axxxxx IBIS Model	3.6	6/14/2011
si5351a-a-gm.ibs	Si5351A-A-GM IBIS Model	3.1	8/22/2011
si5351a-a-gt.ibs	Si5351A-A-GT IBIS Model	3.1	8/23/2011
si5351a-a-gu.ibs	Si5351A-A-GU IBIS Model	3.1	8/23/2011
si5351b-a-gm.ibs	Si5351B-A-GM IBIS Model	3.1	8/23/2011
si5351b-a-gu.ibs	Si5351B-A-GU IBIS Model	3.1	8/23/2011
si5351c-a-gm.ibs	Si5351C-A-GM IBIS Model	3.1	8/23/2011
si5351c-a-gu.ibs	Si5351C-A-GU IBIS Model	3.1	8/23/2011
si5356a-axxxxx-gm.ibs	Si5356A axxxxx IBIS Model	3.2	11/30/2010

Product Matrix

Part Number	Available Documents	Control	Package	Reference Inputs	Clock Outputs	Input Frequency	Output Frequency	Phase Jitter (RMS)	Output Format(s)	VDD	VDDO
Si51210	Data Sheet	Pin	6-pin TDFN	1	2	3 - 166 MHz (Clock), 8 - 48 MHz (Xtal)	3 - 200 MHz	—	LVCMOS	2.5 - 3.3 V	—
Si51211	Data Sheet	Pin	8-pin TDFN	2	3	3 - 166 MHz (Clock), 8 - 48 MHz (Xtal)	3 - 200 MHz	—	LVCMOS	2.5 - 3.3 V	1.8 V, 2.5 V, 3.3 V
Si51214	Data Sheet	Pin	6-pin TDFN	1	2	3 - 166 MHz (Clock), 8 - 48 MHz (Xtal)	3 - 200 MHz	—	LVCMOS	1.8 V	—
Si51219	Data Sheet	Pin	8-pin TSSOP	2	3	3 - 166 MHz (Clock), 8 - 48 MHz (Xtal)	3 - 200 MHz	—	LVCMOS	2.5 - 3.3 V	1.8 V, 2.5 V, 3.3 V
Si52142	Data Sheet	I2C/Pin	24-pin QFN	1	3	25 MHz	100 MHz, 25 MHz	1.0 ps	HSCL, LVCMOS	3.3 V	3.3 V
Si52143	Data Sheet	I2C/Pin	24-pin QFN	1	5	25 MHz	100 MHz, 25 MHz	1.0 ps	HSCL, LVCMOS	3.3 V	3.3 V
Si52144	Data Sheet	I2C/Pin	24-pin QFN	1	4	25 MHz	100 MHz	1.0 ps	HSCL	3.3 V	3.3 V
Si52146	Data Sheet	I2C/Pin	32-pin QFN	1	6	25 MHz	100 MHz	1.0 ps	HSCL	3.3 V	3.3 V
Si52147	Data Sheet	I2C/Pin	32-pin QFN	1	9	25 MHz	100 MHz	1.0 ps	HSCL	3.3 V	3.3 V
Si5330A	Data Sheet	Pin	4x4mm 24-QFN	1	4	5 - 710 MHz	5 - 170 MHz	0.15 ps	LVPECL	2.5 V, 3.3 V	2.5 V, 3.3 V
Si5330B	Data Sheet	Pin	4x4mm 24-QFN	1	4	5 - 710 MHz	5 - 170 MHz	0.15 ps	LVDS	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5330C	Data Sheet	Pin	4x4 mm 24-QFN	1	4	5 - 200 MHz	5 - 250 MHz	0.15 ps	HCSL	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5335A	Data Sheet	Pin	24-pin QFN	1	4	10 - 350 (Clock) 25 or 27 (Xtal)	1 - 350 MHz	1.0 ps	LVCMOS, LVDS, LVPECL, HCSL, SSTL, HSTL, CML	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5335B	Data Sheet	Pin	24-pin QFN	1	4	10 - 350 (Clock) 25/27 (Xtal)	1 - 350 MHz	1.0 ps	LVCMOS, LVDS, LVPECL, HCSL, SSTL, HSTL, CML	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5335C	Data Sheet	Pin	24-pin QFN	1	4	10 - 350 (Clock) 25/27 (Xtal)	1 - 350 MHz	1.0 ps	LVCMOS, LVDS, LVPECL, HCSL, SSTL, HSTL, CML	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5335D	Data Sheet	Pin	24-pin QFN	1	4	10 - 350 (Clock) 25/27 (Xtal)	1 - 350 MHz	1.0 ps	LVCMOS, LVDS, LVPECL, HCSL, SSTL, HSTL, CML	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5338A	Data Sheet	I2C	4x4 mm 24-QFN	1	4	8 - 30 MHz (Xtal) or 5 - 710 MHz (Clock)	0.16 - 710 MHz	1.0 ps	LVPECL, LVDS, LVCMOS, HCSL, SSTL, HSTL	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5338B	Data Sheet	I2C	4x4 mm 24-QFN	1	4	8 - 30 MHz (Xtal) or 5 - 710 MHz (Clock)	0.16 - 200 MHz	1.0 ps	LVPECL, LVDS, LVCMOS, HCSL, SSTL, HSTL	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5338C	Data Sheet	I2C	4x4 mm 24-QFN	1	4	8 - 30 MHz (Xtal) or 5 - 710 MHz (Clock)	0.16 - 200 MHz	1.0 ps	LVPECL, LVDS, LVCMOS, HCSL, SSTL, HSTL	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5338D	Data Sheet	I2C	4x4 mm 24-QFN	1	4	8 - 30 MHz (Xtal) or 5 - 710 MHz (Clock)	0.16 - 710 MHz	1.0 ps	LVPECL, LVDS, LVCMOS, HCSL, SSTL, HSTL	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5338E	Data Sheet	I2C	4x4 mm 24-QFN	1	4	8 - 30 MHz (Xtal) or 5 - 710 MHz (Clock)	0.16 - 200 MHz	1.0 ps	LVPECL, LVDS, LVCMOS, HCSL, SSTL, HSTL	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5338F	Data Sheet	I2C	4x4 mm 24-QFN	1	4	8 - 30 MHz (Xtal) or 5 - 710 MHz (Clock)	0.16 - 200 MHz	1.0 ps	LVPECL, LVDS, LVCMOS, HCSL, SSTL, HSTL	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5338G	Data Sheet	I2C	4x4 mm 24-QFN	1	4	8 - 30 MHz (Xtal) or 5 - 710 MHz (Clock)	0.16 - 710 MHz	1.0 ps	LVPECL, LVDS, LVCMOS, HCSL, SSTL, HSTL	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5338H	Data Sheet	I2C	4x4 mm 24-QFN	1	4	8 - 30 MHz (Xtal) or 5 - 710 MHz (Clock)	0.16 - 200 MHz	1.0 ps	LVPECL, LVDS, LVCMOS, HCSL, SSTL, HSTL	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5338J	Data Sheet	I2C	4x4 mm 24-QFN	1	4	8 - 30 MHz (Xtal) or 5 - 710 MHz (Clock)	0.16 - 200 MHz	1.0 ps	LVPECL, LVDS, LVCMOS, HCSL, SSTL, HSTL	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5338K	Data Sheet	I2C	4x4 mm 24-QFN	1	4	8 - 30 MHz (Xtal) or 5 - 710 MHz (Clock)	0.16 - 710 MHz	1.0 ps	LVPECL, LVDS, LVCMOS, HCSL, SSTL, HSTL	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5338L	Data Sheet	I2C	4x4 mm 24-QFN	1	4	8 - 30 MHz (Xtal) or 5 - 710 MHz (Clock)	0.16 - 200 MHz	1.0 ps	LVPECL, LVDS, LVCMOS, HCSL, SSTL, HSTL	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5338M	Data Sheet	I2C	4x4 mm 24-QFN	1	4	8 - 30 MHz (Xtal) or 5 - 710 MHz (Clock)	0.16 - 200 MHz	1.0 ps	LVPECL, LVDS, LVCMOS, HCSL, SSTL, HSTL	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5338N	Data Sheet	I2C	4x4 mm 24-QFN	4	4	8 - 30 MHz (Xtal) or 5 - 710 MHz (Clock)	0.16 - 710 MHz	1.0 ps	LVPECL, LVDS, LVCMOS, HCSL, SSTL, HSTL	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5338P	Data Sheet	I2C	4x4 mm 24-QFN	4	4	8 - 30 MHz (Xtal) or 5 - 710 MHz (Clock)	0.16 - 200 MHz	1.0 ps	LVPECL, LVDS, LVCMOS, HCSL, SSTL, HSTL	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5338Q	Data Sheet	I2C	4x4 mm 24-QFN	4	4	8 - 30 MHz (Xtal) or 5 - 710 MHz (Clock)	0.16 - 200 MHz	1.0 ps	LVPECL, LVDS, LVCMOS, HCSL, SSTL, HSTL	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
Si5351A-A-GM	Data Sheet Data Short	I2C	4x4 mm 20-QFN	1	8	25/27 MHz (Xtal)	0.008 - 133 MHz	3.5 ps	LVCMOS	2.5 V, 3.3 V	2.5 V, 3.3 V
Si5351A-A-GT	Data Sheet Data Short	I2C	10-pin MSOP	1	3	25/27 MHz (Xtal)	0.008 - 133 MHz	3.5 ps	LVCMOS	2.5 V, 3.3 V	2.5 V, 3.3 V
Si5351A-A-GU	Data Sheet Data Short	I2C	24-pin QSOP	1	8	25/27 MHz (Xtal)	0.008 - 133 MHz	3.5 ps	LVCMOS	2.5 V, 3.3 V	2.5 V, 3.3 V
Si5351B-A-GM	Data Sheet Data Short	I2C	4x4 mm 20-QFN	1	8	25/27 MHz (Xtal)	0.008 - 133 MHz	3.5 ps	LVCMOS	2.5 V, 3.3 V	2.5 V, 3.3 V
Si5351B-A-GU	Data Sheet Data Short	I2C	24-pin QSOP	1	8	25/27 MHz (Xtal)	0.008 - 133 MHz	3.5 ps	LVCMOS	2.5 V, 3.3 V	2.5 V, 3.3 V
Si5351C-A-GM	Data Sheet Data Short	I2C	4x4 mm 20-QFN	2	8	10 - 100 MHz (Clock), 25/27 MHz (Xtal)	0.008 - 133 MHz	3.5 ps	LVCMOS	2.5 V, 3.3 V	2.5 V, 3.3 V
Si5351C-A-GU	Data Sheet Data Short	I2C	24-pin QSOP	2	8	10 - 100 MHz (Clock), 25/27 MHz (Xtal)	0.008 - 133 MHz	3.5 ps	LVCMOS	2.5 V, 3.3 V	2.5 V, 3.3 V
Si5356	Data Sheet	I2C	4x4 mm 24-QFN	1	8	25/27 MHz (Xtal) or 5 - 200 MHz (Clock)	1 - 200 MHz	2.0 ps	LVCMOS	1.8 V, 2.5 V, 3.3 V	1.8 V, 2.5 V, 3.3 V
SL15100	Data Sheet	Pin	8-pin TSSOP	1	2	3 - 166 MHz (Clock), 8 - 48 MHz (Xtal)	3 - 200 MHz	> 1.0 ps	LVCMOS	2.5 V, 3.3 V	—
SL15300	Data Sheet	Pin	8-pin TSSOP	1	4	3 - 166 MHz (Clock), 8 - 48 MHz (Xtal)	3 - 200 MHz	> 1.0 ps	LVCMOS	1.8 V, 2.5 V, 3.3 V	—
SL15303	Data Sheet	Pin	8-pin TSSOP	1	3	3 - 166 MHz (Clock), 8 - 48 MHz (Xtal)	3 - 200 MHz	> 1.0 ps	LVCMOS	1.8 V, 2.5 V, 3.3 V	—
SL16010DC	Data Sheet	I2C/Pin	10-pin TDFN	1	2	27 MHz	100 MHz, 27 MHz	> 1.0 ps	LVCMOS	3.3 V	—
SL16020DC	Data Sheet	I2C/Pin	10-pin TDFN	1	2	27 MHz	100 MHz, 27 MHz	> 1.0 ps	LVCMOS	3.3 V	—
SL28SRC01	Data Sheet	Pin	16-pin TSSOP	1	1	14.318 MHz	100 MHz	1.0 ps	HCSL	3.3 V	3.3 V
SL28SRC02	Data Sheet	Pin	20-pin TSSOP	1	2	14.318 MHz	100 MHz	1.0 ps	HCSL	3.3 V	3.3 V
SL28SRC04	Data Sheet	Pin	24-pin TSSOP	1	4	14.318 MHz	100 MHz	1.0 ps	HCSL	3.3 V	3.3 V

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The factory programmable Si5121x 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 generate 1 to 2 or 1 to 3 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.

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Selecting the Optimum PCIe Clock Source

To ensure proper compliance with the PCIe standard, systems require careful attention to the timing subsystem and architecture. This article explores some of the standard clocking architectures for PCIe and considers their benefits for typical system applications, including: clock architecture selection (Common Refclk, Separate Refclk or Data Clocked Refclk), requirements in applications that use FPGAs, jitter performance of the reference clock, use of spread spectrum clocking, and more.

SyncE and IEEE 1588: Sync Distribution for a Unified Network

Since Ethernet or packet based networks operate asynchronously, many of the traditional applications that depend on synchronization are not supported. Designers increasingly need to combine services supplied by data efficient packet networks with the ones served by the large installed base of traditional SONET/SDH networks. Both Synchronous Ethernet (SyncE) and packet timing using the IEEE 1588 protocol offer viable solutions in unifying service delivery over both networks. Download this new app note from Silicon Labs to discover methods for transporting synchronization and potential synchronized timing implementations.

Prototyping with Frequency-Flexible Crystal Oscillators

Developers of new systems ideally should make decisions regarding clocking requirements early in the design process. Although clocking rates are critical parameters that should be known in advance, determining these rates sometimes requires experimentation and re-evaluation. The use of frequency-flexible, programmable crystal oscillators (XOs) as prototyping tools can facilitate the process of validating system performance and help streamline the overall product development cycle.

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