83947AYI-147LF Integrated Device Technology (Idt), 83947AYI-147LF Datasheet - Page 7

• Manufacturer Part Number: 83947AYI-147LF
• Description: Clock Driver 2-IN LVCMOS/LVTTL 32-Pin LQFP Tray
• Manufacturer: Integrated Device Technology (Idt)

Specifications of 83947AYI-147LF

• Package: 32LQFP
• Configuration: 1 x 2:1
• Input Signal Type: LVCMOS/LVTTL
• Maximum Output Frequency: 250 MHz
• Operating Supply Voltage: 2.5|3.3 V

83947AYI-147
A
Figure 1 shows an example of ICS83947I-147 application sche-
matic. In this example, the device is operated at V
decoupling capacitors should be located as close as possible
to the power pin. The input is driven by a 3.3V LVCMOS driver.
PPLICATION
S
VDDO
(U1-10)
CHEMATIC
C1
0.1u
VCC
VCC
LVCMOS
LVCMOS
(U1-14)
C2
0.1u
E
R3
R3
XAMPLE
(U1-18)
VDD=3.3V
VDDO=3.3V
43
43
C3
0.1u
F
Zo = 50 Ohm
Zo = 50 Ohm
(U1-22)
IGURE
C4
0.1u
1. ICS83947I-147 S
C5
0.1u
(U1-27)
CC
=3.3V. The
VDD
C2
0.1u
www.idt.com
(U1-31)
1
2
3
4
5
6
7
8
C3
0.1u
7
GND
CLK_SEL
CLK0
CLK1
CLK_EN
OE
VDD
GND
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).
VDDO
CHEMATIC
LVCMOS/LVTTL F
VDDO
VDDO
U1
ICS83947I-147
GND
GND
GND
L
Q3
Q4
Q5
AYOUT
24
23
22
21
20
19
18
17
R1
R2
43
43
ICS83947I-147
Zo = 50
Zo = 50
L
OW
ANOUT
S
REV. A AUGUST 12, 2010
KEW
, 1-
B
UFFER
TO
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