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Si5351B-B11531-GM

Si5351B-B11531-GM

MPN: SI5351B-B11531-GM
Skyworks Solutions Inc.
Clock Generator, VCXO IC 200MHz 1 20-VFQFN Exposed Pad
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Overview

The Si5351B-B11531-GM is a highly flexible clock generator and VCXO IC capable of generating up to 8 non-integer-related frequencies from 8 kHz to 200 MHz. This I2C-programmable device utilizes a dual PLL architecture to provide high-resolution frequency synthesis with 0 ppm error, replacing multiple crystal oscillators in complex systems.

Why Choose This Part

The Si5351B features a built-in Voltage Controlled Crystal Oscillator (VCXO) and supports wide supply voltages from 1.71V to 3.6V. Its I2C interface allows for dynamic frequency reconfiguration, while the 20-VFQFN package provides a compact footprint with optimized thermal performance.

Applications

Audio/Video Equipment
Generating precise master clocks for professional audio interfaces, gaming consoles, and video playback systems.
Industrial Instrumentation
Providing stable clock references for handheld measurement devices and laser range finders.
Networking and Storage
Acting as a centralized clock source for residential gateways, servers, and communication switches.
XO Replacement
Consolidating multiple discrete crystal oscillators into a single 4x4 mm QFN package to save PCB real estate.

Key Specifications

PLL Yes
Type Clock Generator, VCXO
Input Clock, Crystal
Output HCSL, LVCMOS
Mounting Type Surface Mount
Package / Case 20-VFQFN Exposed Pad
Frequency - Max 200MHz
Voltage - Supply 2.25V ~ 2.75V, 3V ~ 3.6V
Divider/Multiplier Yes/No
Number of Circuits 1
Ratio - Input:Output 1:8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 20-QFN (4x4)
Differential - Input:Output No/No

Getting Started

Designers can use the Skyworks ClockBuilder Pro software to configure the internal registers and generate custom frequency plans. The device is controlled via a standard I2C interface and can be interfaced with most microcontrollers for real-time frequency adjustments.

SI5351B-B11531 Family

Also available as: SI5351B-B11531-GMR

Also Consider

Si5351A-B-GT Skyworks Solutions Inc. - A standard 10-MSOP version without the VCXO functionality for simpler clock generation needs.

Categories

Clocks & Timing > Clock Generators & PLLs Clocks & Timing