Part Number: Si5324C-C-GM

Manufacturer: Skyworks Solutions, Inc.

Description: IC CLOCK MULT 2KHZ-346MHZ 36VQFN

Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of SI5324C-C-GM

Datasheet  SI5324C-C-GM datasheet
Category Integrated Circuits (ICs)
Family Clock/Timing – Application Specific
Manufacturer Silicon Labs
Series DSPLL?
Packaging Tray
Part Status Active
Main Purpose Ethernet (WAN), SONET/SDH/STM, Video
Input Clock
Number of Circuits 1
Ratio – Input:Output 2:2
Differential – Input:Output Yes/Yes
Frequency – Max 346MHz
Voltage – Supply 1.71 V ~ 3.63 V
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Package / Case 36-VFQFN Exposed Pad
Supplier Device Package 36-QFN (6×6)

SI5324C-C-GM Introduction

The Si5324C-C-GM clock multiplier is a high-performance piece of hardware made to multiply clocks precisely while reducing delay. It was made for applications that need jitter performance of less than 1 ps over a wide range of loop bandwidths, from 4 Hz to 525 Hz. The Si5324C-C-GM can take in two clocks with frequencies between 2 kHz and 710 MHz and send out two clocks with frequencies between 2 kHz and 945 MHz, with some selectable frequencies going up to 1.4 GHz. Because of this, it can be used in many situations where accurate clock multiplication and low jitter are important for getting the best system performance.

SI5324C-C-GM Features and Benefits

The Si5324C-C-GM clock multiplier has a number of features and benefits that help it work well and be used in a wide range of situations.

● Sub-1 ps Jitter Performance

The Si5324C-C-GM is made to have sub-1 ps jitter performance, which means that clock multiplication will be very accurate and stable. This function is very important for applications that need precise timing and synchronization. It reduces timing errors and makes the system run better overall.

● Low-Bandwidth Operation

The clock multiplier is best for low-bandwidth uses with loop bandwidths from 4 Hz to 525 Hz. This makes it a good choice for things like telecommunications, data communications, and test and measurement tools that need precise clock multiplication and synchronization.

● Wide Range of Input and Output Clock Frequencies

The Si5324C-C-GM offers a wide range of clock frequencies for both input and output. It can take two input clocks from 2 kHz to 710 MHz, giving you a choice of where to get your clock from. Output clocks run from 2 kHz to 945 MHz, and certain frequencies can go as high as 1.4 GHz. This makes the device flexible enough to meet a wide range of clock needs in different situations.

● Attenuation of Jitter

The clock multiplier uses advanced methods to reduce the effect of jitter on the clocks it sends out. This makes sure that the output clocks keep their integrity and steadiness even if the input clocks are jittery. The Si5324C-C-GM improves signal clarity and makes timing more accurate by reducing jitter.

● Improved System Performance

The Si5324C-C-GM’s excellent delay performance, low bandwidth operation, and wide input/output clock range all help improve system performance in different situations. The device’s precise clock multiplication and synchronization improve data transmission, reduce errors, and allow important systems to run on time.

● Flexible Configuration

The Si5324C-C-GM can be set up for different working modes, so users can change how it works to meet the needs of their applications. This makes it easier to use with a wide range of systems and makes it easier to add to current designs.

Overall, the Si5324C-C-GM clock multiplier has sub-1 ps jitter performance, low-bandwidth operation, a wide clock range, and jitter attenuation capabilities. These features improve system performance, ensure accurate timing, and allow reliable data transmission in applications like telecommunications, data communications, test and measurement equipment, and more.

Electrical Characteristics

The Si5324C-C-GM clock multiplier exhibits the following important electrical characteristics:

Input clock frequency range

  • Accepts two input clocks, XA and XB.
  • XA input clock frequency range: 2 kHz to 710 MHz
  • XB input clock frequency range: 2 kHz to 710 MHz
  • Output Clock Frequency Range:
  • Generates two output clocks, x0 and x1.
  • Output clock frequency range: 2 kHz to 945 MHz
  • Selectable frequencies extend up to 1.4 GHz.

Supply Voltage

  • VDD supply voltage range: 2.375V to 3.63V.

Power Consumption

  • Typical power consumption: 275 mW.
  • Power-down mode: 10 mW.
  • These electrical characteristics provide an overview of the operating range and power requirements of the Si5324C-C-GM clock multiplier.

Application Circuit Design Considerations

When making an application circuit with the Si5324C-C-GM clock repeater, there are a few things to keep in mind to make sure it works well and has as little noise and interference as possible. Here are some important planning considerations:

● Decoupling the power supply

Proper decoupling of the power source is important for stable operation and less noise. Place decoupling capacitors near the Si5324C-C-GM’s VDD pins. This will make sure the power source is connected with low inductance and reduce voltage changes.

● Clock Input Termination

It is best to end the input clocks (XA and XB) with the right series termination resistors for the best signal integrity and less leakage. The impedance of the trace and the impedance of the output of the clock source can be used to figure out the values of these resistors.

● Clock Output Termination

It is important to make sure that the output clocks (x0 and x1) are properly terminated to keep the signal clean and reduce echoes. End the output clocks with resistors in series that match the transmission line resistance, and if necessary, use resistors in parallel at the receiving end.

● Layout Guidelines

Follow good practices for PCB planning to cut down on noise and interference. Keep clock traces as short as possible, don’t cross high-speed signals, and give sensitive traces and noisy components enough space. To keep noise from spreading between analog and digital parts, use different ground planes or areas for each.

● Grounding

Make sure the Si5324C-C-GM and its other parts have a solid, low-impedance ground link. Use specialized ground planes or traces to reduce ground noise and ground loops. Clock Signal Integrity: When routing a PCB, pay attention to the signal integrity. Use controlled impedance traces for clock signals, keep the right lengths and distances between traces, and use as few vias and stubs as possible. Use methods for matching impedance to make sure signals get through and to cut down on reflections.

Think about the temperature. During use, the Si5324C-C-GM may give off some heat. Make sure there is good thermal control by making sure there is enough copper area or heat sinking to get rid of the heat. Follow the manufacturer’s instructions for thermal considerations and make sure the IC works within the suggested temperature range.

By taking these application circuit design factors into account, engineers can get the most out of the Si5324C-C-GM clock multiplier, reduce noise and interference, and make sure their electronic systems have reliable and accurate clock multiplication.


In conclusion, the Si5324C-C-GM clock multiplier is an important part for getting jitter performance of less than 1 ps and accurate clock multiplication. Its low bandwidth operation, wide input/output clock range, and ability to select frequencies up to 1.4 GHz make it a useful asset for many applications. To get the most out of it, you should look at the datasheet for detailed specs and instructions. By adding the Si5324C-C-GM to your plans, you can improve the speed and accuracy of clocking. Contact our experts at ICRFQ to learn about all the things this great IC can do and to get personalized help with your ideas.

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