ICS8430-71B ICST [Integrated Circuit Systems], ICS8430-71B Datasheet - Page 10

• Manufacturer Part Number: ICS8430-71B
• Description: 700MHZ, LOW JITTER, CRYSTAL INTERFACE / LVCMOS-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
• Manufacturer: ICST [Integrated Circuit Systems]

L
The schematic of the ICS8430B-71 layout example used in
this layout guideline is shown in Figure 5A. The ICS8430B-71
recommended PCB board layout for this example is shown in
Figure 5B. This layout example is used as a general guideline.
8430BY -71
AYOUT
G
UIDELINE
Integrated
Circuit
Systems, Inc.
ICS8430B-71
1
2
3
4
5
6
7
8
U1
M5
M6
M7
M8
N0
N1
N2
VEE
C14
0.1u
F
IGURE
www.icst.com/products/hiperclocks.html
C1
0.1u
C15
PRELIMINARY
TEST_CLK
XTAL_SEL
S_CLOCK
5A. S
S_LOAD
LVCMOS-
S_DATA
X_OUT
VCCA
MR
CHEMATIC OF
X1
24
23
22
21
20
19
18
17
Zo = 50 Ohm
Zo = 50 Ohm
10
REF_IN
XTAL_SEL
S_LOAD
S_DATA
S_CLOCK
TL1
TL2
TO
700MH
The layout in the actual system will depend on the selected
component types, the density of the components, the density
of the traces, and the stack up of the P.C. board.
R
ECOMMENDED
-3.3V LVPECL F
C2
IN+
IN-
VCCA
Z
, L
L
AYOUT
OW
C11
0.01u
VCC
R1
125
R2
84
J
ITTER
REQUENCY
VCC
R3
125
R4
84
, C
ICS8430B-71
R7
10
10u
C16
+
-
RYSTAL
REV. A SEPTEMBER 20, 2005
S
YNTHESIZER
I
NTERFACE
/