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Si5338C-B-GM

Si5338C-B-GM

MPN: SI5338C-B-GM
Skyworks Solutions Inc.
Ethernet, Fibre Channel, PCI Express (PCIe), Telecom Clock Generator IC 200MHz 1 Output 24-QFN (4x4)
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Overview

The Si5338C-B-GM is a high-performance, any-frequency, quad-output clock generator capable of synthesizing any combination of frequencies up to 200MHz. It utilizes Skyworks proprietary MultiSynth technology to provide sub-picosecond jitter on every output while maintaining independent frequency scaling. The device is highly flexible, supporting multiple differential and single-ended I/O standards including LVPECL, LVDS, HCSL, and LVCMOS.

Why Choose This Part

The primary advantage is its ability to replace four independent crystal oscillators with a single IC, significantly reducing BOM cost and board space. It features an I2C/SMBus interface for real-time configuration and includes advanced diagnostics such as loss of signal (LOS) and loss of lock (LOL) alarms. Its wide supply range of 1.71V to 3.63V ensures compatibility with modern low-voltage digital rails.

Applications

PCI Express Timing
Provides compliant clocking for PCIe Gen 1, 2, 3, and 4 systems, including support for SRNS (Separate Reference No Spread) architectures.
Ethernet Switches and Routers
Generates synchronized, low-jitter reference clocks for high-speed network interfaces and line cards.
Broadcast Video Equipment
Used in professional audio/video timing to synchronize multiple signal chains with high precision synthesis.
Telecom Line Cards
Serves as a centralized timing source for telecommunications infrastructure requiring diverse output standards from a single crystal input.

Key Specifications

PLL Yes
Input CML, CMOS, HCSL, HSCL, HSTL, LVDS, LVPECL, SSTL, Crystal
Output HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL
Main Purpose Ethernet, Fibre Channel, PCI Express (PCIe), Telecom
Mounting Type Surface Mount
Package / Case 24-VFQFN Exposed Pad
Frequency - Max 200MHz
Voltage - Supply 1.71V ~ 3.63V
Number of Circuits 1
Ratio - Input:Output 3:4
Operating Temperature -40degC ~ 85degC
Supplier Device Package 24-QFN (4x4)
Differential - Input:Output Yes/Yes

Getting Started

Engineers should use the ClockBuilder Pro software to generate configuration files and evaluate performance. Initial prototyping is best performed using the Si5338-EVB evaluation board, which allows for direct frequency programming via USB. The device can be factory pre-programmed or configured in-system via the I2C interface.

SI5338C-B Family

Also available as: SI5338C-B-GMR

Also Consider

Si5338B-B-GM Skyworks Solutions Inc. - Offers a higher maximum frequency of 350MHz compared to the 200MHz limit of the C-grade variant.
Si5351A-B-GT Skyworks Solutions Inc. - A more cost-effective solution for applications only requiring simple LVCMOS outputs without differential signaling requirements.
CDCEL913 TITexas Instruments - A competitive 3-PLL clock synthesizer for low-power applications needing a smaller 14-pin TSSOP footprint.

Categories

Industrial & Automation > Industrial Communication