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SI5351A-B-GTR

SI5351A-B-GTR

Skyworks Solutions Inc.
Clock Generator IC 200MHz 2 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
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Overview

The SI5351A-B-GTR is a highly flexible, I2C-programmable CMOS clock generator capable of synthesizing up to three unique frequencies from 8 kHz to 200 MHz. It utilizes a dual-PLL architecture to provide exact frequency synthesis with 0 ppm error, effectively replacing multiple crystals and oscillators in complex embedded designs.

Why Choose This Part

This IC offers glitchless frequency changes and configurable spread spectrum at each output to minimize EMI. Its internal architecture eliminates the need for external power supply filtering due to high PSRR, while the I2C interface allows for real-time adjustments and level translation across 1.71V to 3.6V domains.

Applications

Ethernet and Networking
Provides precise reference clocks for switches, routers, and PCIE Gen 1 compatible systems.
Consumer Electronics
Replaces multiple discrete timing components in printers, scanners, and digital cameras to reduce BOM cost and PCB footprint.
Handheld Instrumentation
Leverages low power consumption (22mA typ) and small 10-MSOP packaging for battery-operated portable devices.

Key Specifications

PLL Yes
Type Clock Generator
Input Crystal
Output LVCMOS
Mounting Type Surface Mount
Package / Case 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Frequency - Max 200MHz
Voltage - Supply 1.71V ~ 3.6V
Divider/Multiplier Yes/No
Number of Circuits 2
Ratio - Input:Output 1:3
Operating Temperature -40degC ~ 85degC
Supplier Device Package 10-MSOP
Differential - Input:Output No/No

Getting Started

Designers can evaluate this part using the Skyworks Solutions Si5351-B-EVB evaluation board and the ClockBuilder Pro software tool for configuration. Implementation requires an external 25 MHz or 27 MHz crystal and an I2C controller to load the register maps upon system power-up.

Also Consider

SI5351A-B-GM Skyworks Solutions Inc. - QFN-20 version of the same silicon providing up to 8 independent clock outputs instead of 3.

Categories

Clocks & Timing > Clock Generators & PLLs