ICS8442BY REVISION A NOVEMBER 18, 2013

10

©2013 Integrated Device Technology, Inc.

ICS8442B Data Sheet

700MHz, CRYSTAL OSCILLATOR-TO-DIFFERENTIAL LVDS FREQUENCY SYNTHESIZER

The schematic of the ICS8442B layout example used in this

layout guideline is shown in

Figure 6A. The ICS8442B recom-

mended PCB board layout for this example is shown in

Figure

6B. This layout example is used as a general guideline. The

layout in the actual system will depend on the selected com-

ponent types, the density of the components, the density of the

traces, and the stack up of the P.C. board.

+

-

VDDA

C14

0.1u

C2

VDD

C16

10u

Zo = 50 Ohm

U1

ICS8442

1

2

3

4

5

6

7

8

17

18

19

20

21

22

23

24

M5

M6

M7

M8

N0

N1

nc

GND

MR

S_CLOCK

S_DATA

S_LOAD

VDDA

nXTAL_SEL

T_CLK

X_OUT

C15

0.1u

Zo = 50 Ohm

+

-

C1

R7

10

Zo = 50 Ohm

Zo = 50 Ohm

C11

0.01u

R1

100

X1

R2

100