Si5350B

8

Rev. 0.9

2. Typical Application

2.1. Si5350B Replaces Multiple Clocks and XOs

The Si5350B is a clock generation device that provides both synchronous and free-running clocks for applications

where power, board size, and cost are critical. An application where both free-running and synchronous clocks are

required is shown in Figure 1.

Figure 1. Example of an Si5350B in an Audio/Video Application

2.2. Replacing a Crystal with a Clock

The Si5350B can be driven with a clock signal through the XA input pin.

Figure 2. Si5350B Driven by a Clock Signal

Ethernet

PHY

USB

Controller

HDMI

Port

28.322 MHz

48 MHz

125 MHz

Video/Audio

Processor

74.25/1.001 MHz

24.576 MHz

OSC

XA

XB

CLK0

CLK1

CLK2

CLK3

CLK4

CLK5

PLL

VCXO

Multi

Synth

0

Multi

Synth

1

Multi

Synth

2

74.25 MHz

VC

27 MHz

Si5350B

Multi

Synth

3

Multi

Synth

4

Multi

Synth

5

Multi

Synth

N

Multi

Synth

0

Multi

Synth

1

PLLB

PLLA

XA

XB

OSC

25/27 MHz

Note: Float the XB input while driving

the XA input with a clock

0.1 µF