ICS83947AI147 datasheet(7/10 Pages) ICST

7 / 10 page

83947AYI-147

http://www.icst.com/products/hiperclocks.html

REV. A SEPTEMBER 24, 2004

Integrated

Circuit

Systems, Inc.

ICS83947I-147

LOW SKEW, 1-TO-9

LVCMOS/LVTTL FANOUT BUFFER

APPLICATION SCHEMATIC EXAMPLE

Figure 1 shows an example of ICS83947I-147 application sche-

matic. In this example, the device is operated at V

CC=3.3V. The

decoupling capacitors should be located as close as possible

to the power pin. The input is driven by a 3.3V LVCMOS driver.

0.1u

VCC

Zo = 50 Ohm

0.1u

(U1-22)

0.1u

(U1-10)

VDDO

(U1-18)

0.1u

VDDO

(U1-14)

Zo = 50

ICS83947I-147

GND

CLK_SEL

CLK0

CLK1

CLK_EN

VDD

GND

VDDO

GND

VDDO

GND

VCC

VDD=3.3V

LVCMOS

Zo = 50

Zo = 50 Ohm

(U1-27)

VDD

VDDO=3.3V

LVCMOS

0.1u

(U1-31)

For the LVCMOS output drivers, only one termination example

is shown in this schematic. Additional termination approaches

are shown in the LVCMOS Termination Application Note (refer

to ICS website).

FIGURE 1. ICS83947I-147 SCHEMATIC LAYOUT

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