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 (190 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. Using the Si5332's I2C
interface, the device may be user-configured at power-up or internally-configured NVM
programmed with new configuration using the ClockBuilder Pro Field Programmer.
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, up to 6 outputs
• 40-pin, up to 8 outputs
• 48-pin, 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 333.33 MHz
• LVCMOS: 5 to 170 MHz
• User-configurable clock output signal
format per output: LVDS, LVPECL, HCSL,
LVCMOS
• Multi-profile configuration support
• 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. 1.2
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
.18
.18
.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 Output Enable/Disable . . . . . . . . .
3.5.7 Differential Output Configurable Skew Settings.
3.5.8 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
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
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.37
.42
.47
6.1 Pin Descriptions (48-QFN) .
6.2 Pin Descriptions (40-QFN) .
6.3 Pin Descriptions (32-QFN) .
7. Package Outline
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
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.51
.52
.53
.55
.56
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-LGA Package Diagram, Embedded Crystal Versions (Si5332E/F/G/H)
7.5 Si5332 6x6 mm 40-LGA Package Diagram, Embedded Crystal Versions (Si5332E/F/G/H)
silabs.com
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Rev. 1.2 | 2
7.6 Si5332 5x5 mm 32-LGA Package Diagram, Embedded Crystal Versions (Si5332E/F/G/H)
.
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.57
8. PCB Land Pattern
. . . . . . . . . . . . . . . . . . . . . . . . . . . .58
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.58
.60
.62
.64
.66
.68
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
70
. . . . . . . . . . . . . . . . . . . . . . . . . . 71
silabs.com
| Building a more connected world.
Rev. 1.2 | 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, up to 6 outputs
• 40-pin, up to 8 outputs
• 48-pin, up to 12 outputs
• MultiSynth
™
technology enables any-frequency synthesis on
any output up to 250 MHz
• Integer output frequencies up to 333.33 MHz
• Embedded 50 MHz crystal option (E/F/G/H grades)
• Highly configurable output path featuring a cross point mux
• Two 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 333.33 MHz
• LVCMOS: 5 to 170 MHz
• User-configurable clock output signal format per output: LVDS,
LVPECL, HCSL, LVCMOS
• Low phase jitter:
• 175 fs RMS (embedded crystal)
• 190 fs RMS (external crystal)
• PCIe Gen1/2/3/4, SRIS compliant
• 1.8 V, 2.5 V, 3.3 V core VDD
• Adjustable output-output delay
• Multi-profile configuration support:
• Store up to 16 input/output configurations in the same cus-
tom part number
• 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% to 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
• Operating temperature range: –40 to +85 °C
• RoHS-6 compliant
silabs.com
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Rev. 1.2 | 4
Si5332 Data Sheet
Ordering Guide
2. Ordering Guide
Blank Devices, In-System Programmable
Si5332X - D - GMpR
Operating Temp Range: -40 to +85 C
GM = QFN, ROHS6 compliant
p = 1 for 6-output, 32-pin QFN/LGA
2 for 8-output, 40-pin QFN/LGA
3 for 12-output, 48-pin QFN/LGA
R = Tape & Reel (ordering option)
D = 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 - 333.33MHz
or Clock
5MHz - 200MHz
5MHz - 333.33MHz
5MHz - 200MHz
Embedded 5MHz - 333.33MHz
crystal or
5MHz - 200MHz
External Clock 5MHz - 333.33MHz
5MHz - 200MHz
Input Type
Operating
Temperature Range
-40 to +85C
Pre-programmed devices using a ClockBuilder Pro configuration file
Si5332X DXXXXX - GMpR
Operating Temp Range: -40 to +85 C
GM = ROHS-6 compliant package designator
P = 1 for 6-output, 32-pin QFN/LGA
2 for 8-output, 40-pin QFN/LGA
3 for 12-output, 48-pin QFN/LGA
R = Tape & Reel (ordering option)
D = 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 - 333.33MHz
or Clock
5MHz - 200MHz
5MHz - 333.33MHz
5MHz - 200MHz
Embedded 5MHz - 333.33MHz
crystal or
5MHz - 200MHz
External Clock 5MHz - 333.33MHz
5MHz - 200MHz
Input Type
Operating
Temperature Range
-40 to +85C
Figure 2.1. Orderable Part Number Guide
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