ics84330c Integrated Device Technology, ics84330c Datasheet - Page 11

• Manufacturer Part Number: ics84330c
• Description: 700mhz, Low Jitter, Crystal-to-3.3v Differential Lvpecl Frequency Synthesizer
• Manufacturer: Integrated Device Technology

Layout Guideline
The schematic of the ICS84330C layout example used in this
layout guideline is shown in Figure 6A. The ICS84330C
recommended PCB board layout for this example is shown in
Figure 6B. This layout example is used as a general guideline. The
Figure 6A. ICS84330C Schematic of Recommended Layout
IDT™ / ICS™ LVPECL FREQUENCY SYNTHESIZER
ICS84330C
700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER
RU0
SP
RD0
1K
RU1
SP
RD1
1K
VCC=3.3V
SP = Space (i.e. not intstalled)
M [8:0]= 110010000 (400)
N[1:0] =00 (Divide by 2)
RU7
1K
RD7
SP
VCC
RU8
1K
RD8
SP
RU9
SP
RD9
1K
RU10
1K
RD10
SP
RU11
SP
RD6
1K
M4
M5
M6
M7
M8
N2
N1
U1
ICS84330
RU12
1K
RD12
SP
12
13
14
15
16
17
18
M4
M5
M6
M7
M8
N0
N1
11
C4
0.1u
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.
SP
C1
FREF_EXT
XTAL_SEL
S_CLOCK
S_LOAD
S_DATA
VCCA
16MHz, 18pF
Zo = 50 Ohm
Zo = 50 Ohm
X_IN
C3
0.1uF
X1
4
3
2
1
28
27
26
Fout = 200 M Hz
C2
SP
VCCA
ICS84330CV REV. C JANUARY 28, 2009
0.01u
R2
50
C11
R7
10
R3
50
VCC
R1
50
10u
C16
+
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