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Si5357 Datasheet Preview

Si5357 Datasheet

12-Output Any-Frequency Clock Generator

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Si5357 Data Sheet
12-Output Any-Frequency Clock Generator
Based on Silicon Labs proprietary MultiSynthflexible frequency synthesis technology,
the Si5357 generates any combination of output frequencies with excellent jitter per-
formance. The device's highly flexible architecture enables a single device to generate
a wide range of integer and non-integer related frequencies on up to 12 clock outputs
with 0 ppm frequency synthesis error. The device offers multiple banks of outputs that
can each be tied to independent voltages, enabling usage in mixed-supply applications.
Given its frequency, format, and supply voltage flexibility, the Si5357 is ideally suited to
replace multiple clock ICs and oscillators with a single device.
The Si5357 is quickly and easily configured using ClockBuilder Prosoftware. Clock-
Builder Pro assigns a custom part number for each unique configuration. Devices are
factory-programmable free of charge, making it easy to get a custom clock uniquely
tailored for each application. Devices can also be in-circuit programmed via an I2C serial
interface.
Applications:
• Servers, Storage
• Print Imaging
• Audio processing
• Broadcast Video
• Test and Measurement
• Industrial, Embedded Computing
KEY FEATURES
• Any-frequency 12-output LVCMOS
programmable clock generator
• Offered in 32-pin QFN, up to 12 outputs
• MultiSynth technology enables any-
frequency synthesis on any output up to
170 MHz
• Highly configurable output path featuring a
cross point mux
• Up to three independent fractional
synthesis output paths
• Up to five independent integer dividers
• Input frequency range:
• External crystal: 16 to 50 MHz
• Differential clock: 10 to 170 MHz
• LVCMOS clock: 10 to 170 MHz
• Output frequency range: 5 to 170 MHz
• Temperature range: –40 to +85 °C
• RoHS-6 compliant
• Down and center spread spectrum
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
1
Rev. 1.0 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • July 26, 2021
1




Skyworks Solutions

Si5357 Datasheet Preview

Si5357 Datasheet

12-Output Any-Frequency Clock Generator

No Preview Available !

Table of Contents
1. Features List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2 Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2.1 Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.3 Frequency Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.4 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.4.1 External Reference Input (XA/XB) . . . . . . . . . . . . . . . . . . . . . . 6
3.4.2 Input Clocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.4.3 Input Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.5 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.5.1 LVCMOS Output Terminations . . . . . . . . . . . . . . . . . . . . . . . 7
3.5.2 LVCMOS Output Signal Swing . . . . . . . . . . . . . . . . . . . . . . . 7
3.5.3 LVCMOS Output Polarity . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.5.4 Output Enable/Disable . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.5.5 Synchronous Output Disable Feature . . . . . . . . . . . . . . . . . . . . . 8
3.6 Spread Spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.7 Universal Hardware Input Pins. . . . . . . . . . . . . . . . . . . . . . . . . 8
3.8 Custom Factory Pre-programmed Parts . . . . . . . . . . . . . . . . . . . . . 9
3.9 I2C Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.10 In-Circuit Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4. Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . .11
6. Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.1 Pin Descriptions (32-QFN) . . . . . . . . . . . . . . . . . . . . . . . . . .18
7. Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.1 Si5357 5x5 mm 32-QFN Package Diagram . . . . . . . . . . . . . . . . . . . .21
8. PCB Land Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9. Top Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
10. Document Change List . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2
Rev. 1.0 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • July 26, 2021
2


Part Number Si5357
Description 12-Output Any-Frequency Clock Generator
Maker Skyworks Solutions
PDF Download

Si5357 Datasheet PDF






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