Si5332 Data Sheet
6/8/12-Output Any-Frequency Clock Generator
KEY FEATURES
Based on Silicon Labs proprietary
flexible frequency synthesis technology,
the Si5332 generates any combination of output frequencies with excellent jitter perfor-
mance (230 fs rms). 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 differ-
ential 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. Further, the signal format of each clock output is user-config-
urable. Given its frequency, format, and supply voltage flexibility, the Si5332 is ideally
suited to replace multiple clock ICs and oscillators with a single device.
The Si5332 is quickly and easily configured using ClockBuilder
software. Clock-
Builder Pro assigns a custom part number for each unique configuration. Devices
ordered with custom part numbers are factory-programmed free of charge, making it
easy to get a custom clock uniquely tailored for each application. Si5332 can also be
programmed via an I2C serial interface.
Pro
™
MultiSynth
™
• Any-Frequency 6/8/12-output
programmable clock generators
• Offered in three different package sizes,
supporting different combinations of output
clocks and user configurable hardware
input pins
• 32-pin QFN, up to 6 outputs
• 40-pin QFN, up to 8 outputs
• 48-pin QFN, up to 12 outputs
• MultiSynth technology enables any-
frequency synthesis on any output up to
250 MHz
• Highly configurable output path featuring a
cross point mux
• Up to three independent fractional
synthesis output paths
• Up to five independent integer dividers
• Embedded 50 MHz crystal option
Applications:
•
•
•
•
Servers, Storage, Search Acceleration
Ethernet Switches, Routers
Small Cells, Mobile Backhaul/Fronthaul
Print Imaging
•
•
•
•
Communications
Broadcast Video
Test and Measurement
Industrial, Embedded Computing
• Input frequency range:
• External crystal: 16 to 50 MHz
• Differential clock: 10 to 250 MHz
• LVCMOS clock: 10 to 170 MHz
• Output frequency range:
• Differential: 5 to 312.5 MHz
• LVCMOS: 5 to 170 MHz
• User-configurable clock output signal
format per output: LVDS, LVPECL, HCSL,
LVCMOS
• Temperature range: –40 to +85 °C
• Down and center spread spectrum
• RoHS-6 compliant
•
Si5332 Family Reference Manual
silabs.com
| Building a more connected world.
Rev. 1.0
Table of Contents
1. Features List
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2. Ordering Guide
3. Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Functional Block Diagrams
3.2 Modes of Operation .
3.2.1 Initialization .
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. 7
. 9
. 9
. 9
.10
.10
.10
.10
.11
.11
.12
.16
.16
.16
.16
.16
.16
.17
.17
.17
.18
.19
.19
.19
3.3 Frequency Configuration .
3.4 Inputs . . . . . . . . . . .
3.4.1 External Reference Input (XA/XB)
3.4.2 Input Clocks . . . . . . .
3.4.3 Input Selection . . . . . .
3.5 Outputs . . . . . . . . . . . . . . . .
3.5.1 Output Signal Format . . . . . . . . .
3.5.2 Differential Output Terminations . . . . . .
3.5.3 LVCMOS Output Terminations . . . . . .
3.5.4 LVCMOS Output Signal Swing . . . . . .
3.5.5 LVCMOS Output Polarity . . . . . . . .
3.5.6 LVCMOS Output Configurable Tr/Tf . . . .
3.5.7 Output Enable/Disable . . . . . . . . .
3.5.8 Differential Output Configurable Skew Settings.
3.5.9 Output Driver State When Disabled . . . .
3.5.10 Synchronous Output Disable Feature . . .
3.6 Spread Spectrum.
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3.7 Universal Hardware Input Pins .
3.9 I2C Serial Interface .
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3.8 Custom Factory Pre-programmed Parts .
3.10 In-Circuit Programming .
4. Register Map
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
. . . . . . . . . . . . . . . . . . . . . . . . . . 21
5. Electrical Specifications
6. Pin Descriptions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
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.35
.40
.44
6.1 Pin Descriptions (48-QFN)
6.2 Pin Descriptions (40-QFN)
6.3 Pin Descriptions (32-QFN)
7. Package Outline
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
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.48
.49
.50
.52
7.1 Si5332 6x6 mm 48-QFN Package Diagram, External Crystal Versions (Si5332A/B/C/D) .
7.2 Si5332 6x6 mm 40-QFN Package Diagram, External Crystal Versions (Si5332A/B/C/D) .
7.3 Si5332 5x5 mm 32-QFN Package Diagram, External Crystal Versions (Si5332A/B/C/D) .
7.4 Si5332 6x6 mm 48-QFN Package Diagram, Embedded Crystal Versions (Si5332E/F/G/H) .
silabs.com
| Building a more connected world.
Rev. 1.0 | 2
7.5 Si5332 6x6 mm 40-QFN Package Diagram, Embedded Crystal Versions (Si5332E/F/G/H) .
7.6 Si5332 5x5 mm 32-QFN Package Diagram, Embedded Crystal Versions (Si5332E/F/G/H) .
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.53
.54
8. PCB Land Pattern
. . . . . . . . . . . . . . . . . . . . . . . . . . . .55
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.55
.57
.59
.61
.63
.65
8.1 Si5332A/B/C/D 48-QFN Land Pattern .
8.2 Si5332A/B/C/D 40-QFN Land Pattern .
8.3 Si5332A/B/C/D 32-QFN Land Pattern .
8.4 Si5332E/F/G/H 48-LGA Land Pattern .
8.5 Si5332E/F/G/H 40-LGA Land Pattern .
8.6 Si5332E/F/G/H 32-LGA Land Pattern .
9. Top Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10. Document Change List
67
. . . . . . . . . . . . . . . . . . . . . . . . . . 68
silabs.com
| Building a more connected world.
Rev. 1.0 | 3
Si5332 Data Sheet
Features List
1. Features List
• Any-Frequency 6/8/12-output programmable clock generators
• Offered in three different package sizes, supporting different
combinations of output clocks and user configurable hardware
input pins
• 32-pin QFN, up to 6 outputs
• 40-pin QFN, up to 8 outputs
• 48-pin QFN, up to 12 outputs
• MultiSynth
™
technology enables any-frequency synthesis on
any output up to 250 MHz
• Embedded 50 MHz crystal option
• Highly configurable output path featuring a cross point mux
• Up to three independent fractional synthesis output paths
• Up to five independent integer dividers
• Ordering options for embedded 50 MHz reference crystal
• Input frequency range:
• External crystal: 16 to 50 MHz
• Differential clock: 10 to 250 MHz
• LVCMOS clock: 10 to 170 MHz
• Output frequency range:
• Differential: 5 to 312.5 MHz
• LVCMOS: 5 to 170 MHz
• Embedded crystal option on 8-output and 12-output devices.
• User-configurable clock output signal format per output: LVDS,
LVPECL, HCSL, LVCMOS
• Low phase jitter: 230 fs rms
• PCIe Gen1/2/3/4, SRIS compliant
• 1.8 V, 2.5 V, 3.3 V core VDD
• Adjustable output-output delay
• Independent glitchless on-the-fly output frequency changes
• Very low power consumption
• Independent output supply pins for each bank of outputs:
• 1.8 V, 2.5 V, or 3.3 V differential
• 1.5 V, 1.8 V, 2.5 V, 3.3 V LVCMOS
• Programmable spread spectrum
• Down and center spread from –0.1% –2.5% in 0.01% steps
at 30 to 33 kHz
• Integrated power supply filtering
• Serial interface: I
2
C
• ClockBuilder Pro software utility simplifies device configuration
and assigns custom part numbers
• Temperature range: –40 to +85 °C
• RoHS-6 compliant
silabs.com
| Building a more connected world.
Rev. 1.0 | 4
Si5332 Data Sheet
Ordering Guide
2. Ordering Guide
Blank devices, in-system programmable
Si5332X - C - GMpR
Operating Temp Range: -40 to +85 C
GM = QFN, ROHS6 compliant
p = 1 for 6-output, 32-pin QFN
2 for 8-output, 40-pin QFN
3 for 12-output, 48-pin QFN
R = Tape & Reel (ordering option)
C = Product Revision
Ordering Part
Number
Si5332A
Si5332B
Si5332C
Si5332D
Si5332E
Si5332F
Si5332G
Si5332H
Frequency Synthesis Mode
Integer and Fractional mode
Integer and Fractional mode
Integer mode only
Integer mode only
Integer and Fractional mode
Integer and Fractional mode
Integer mode only
Integer mode only
Output Clock
Frequency Range
External crystal 5MHz - 312.5MHz
or Clock
5MHz - 200MHz
5MHz - 312.5MHz
5MHz - 200MHz
Embedded 5MHz - 312.5MHz
crystal or
5MHz - 200MHz
External Clock 5MHz - 312.5MHz
5MHz - 200MHz
Input Type
Operating
Temperature Range
-40 to +85C
Pre-programmed devices using a ClockBuilder Pro configuration file
Si5332X CXXXXX - GMpR
Operating Temp Range: -40 to +85 C
GM = QFN, ROHS6 compliant
P = 1 for 6-output, 32-pin QFN
2 for 8-output, 40-pin QFN
3 for 12-output, 48-pin QFN
R = Tape & Reel (ordering option)
C = Product Revision
XXXXX = NVM code. Aa unique 5-digit ordering sequence
will be assigned by ClockBuilder Pro
Ordering Part
Number
Si5332A
Si5332B
Si5332C
Si5332D
Si5332E
Si5332F
Si5332G
Si5332H
Frequency Synthesis Mode
Integer and Fractional mode
Integer and Fractional mode
Integer mode only
Integer mode only
Integer and Fractional mode
Integer and Fractional mode
Integer mode only
Integer mode only
Output Clock
Frequency Range
External crystal 5MHz - 312.5MHz
or Clock
5MHz - 200MHz
5MHz - 312.5MHz
5MHz - 200MHz
Embedded 5MHz - 312.5MHz
crystal or
5MHz - 200MHz
External Clock 5MHz - 312.5MHz
5MHz - 200MHz
Input Type
Operating
Temperature Range
-40 to +85C
Figure 2.1. Orderable Part Number Guide
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