Si51214 Data Sheet

Two Output Factory Programmable Clock Generator

The factory programmable Si51214 is the industry’s lowest power, smallest footprint

and frequency flexible programmable clock generator targeting low power, low cost and

high volume consumer and embedded applications. The device operates from a single

crystal or an external clock source and generates 1 to 2 outputs up to 133 MHz. The

device is factory programmed to provide customized output frequencies and control

input such as frequency select, spread spectrum on, power down and output enable.

Center spread spectrum can also be programmed to reduce EMI to meet board level

system requirements.

KEY FEATURES

• Generates up to 2 CMOS clock outputs

from 3 to 133 MHz

• Accepts crystal or reference clock input

• 3 to 165 MHz reference clock input

• 8 to 48 MHz crystal input

• Programmable FSEL, SSONb, PD, and

OE input functions

Applications

• Crystal/XO replacement

• EMI reduction

• Portable devices

• Digital still camera

• IP phone

• Smart meter

3

2

1

6

4

5

To Pin 4 and Pin

5

To Core

Programmable

Configuration

Register

PLL with

Modulation

Control

Buffers,

Dividers,

and

Switch

Matrix

SSCLK1/

REFCLK/

OE/FSEL/SSONb

SSCLK2/OE/

SSONb/PD

XIN/

CLKIN

XOUT

VDD

VSS

V-REG

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

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Rev. 1.1 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • November 23, 2021

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