ICS8305 Integrated Circuit System, ICS8305 Datasheet - Page 11

• Manufacturer Part Number: ICS8305
• Manufacturer: Integrated Circuit System

S
This application note provides general design guide using
ICS8305 LVCMOS buffer. Figure 3 shows a schematic example
of the ICS8305 LVCMOS clock buffer. In this example, the input
8305AG
CHEMATIC
VDD
3,.3V LVCMOS
Ro ~ 7 Ohm
E
XAMPLE
R3
VDD
R4
1K
43
F
IGURE
Zo = 50
1K
R5
4. E
XAMPLE
R6
1K
ICS8305 LVCMOS C
VDD
www.icst.com/products/hiperclocks.html
1
2
3
4
5
6
7
8
U1
GND
OE
VDD
CLK_EN
CLK
nCLK
CLK_SEL
LVCMOS_CLK
ICS8305
VDD=3.3V
LVCMOS-
L
OW
11
is driven by an LVCMOS driver. CLK_EN is set at logic low to
select LVCMOS_CLK input.
VDDO
VDDO
GND
GND
S
Q0
Q1
Q2
Q3
KEW
LOCK
16
15
14
13
12
11
10
9
(U1,3)
TO
, 1-
O
C1
-LVCMOS/LVTTL F
0.1u
UTPUT
VDD
TO
(U1,11)
-4, M
B
C2
0.1u
UFFER
(U1,15)
R1
43
R2
43
ULTIPLEXED
S
C3
0.1u
CHEMATIC
Zo = 50
Zo = 50
ANOUT
D
ICS8305
IFFERENTIAL
REV. A JUNE 27, 2003
LVCMOS Receiv er
LVCMOS Receiv er
B
UFFER
/