IDT / ICS VCXO-TO-LVCMOS OUTPUTS
11
ICS81006AK REV. B OCTOBER 8, 2008
ICS81006
VCXO-TO-6 LVCMOS OUTPUTS
SCHEMATIC EXAMPLE
Figure 2 shows an example of ICS81006I application schematic.
The decoupling capacitors should be located as close as
possible to the power pin. For the LVCMOS 20
Ω output drivers,
series termination example is shown in the schematic. Additional
termination approaches are shown in the LVCMOS Termination
Application Note.
FIGURE 2. ICS81006I SCHEMATIC EXAMPLE
INPUTS:
CONTROL PINS:
All control pins have internal pull-ups or pull-downs; additional
resistance is not required but can be added for additional
protection. A 1k
Ω resistor can be used. The VC pin can not be
floated.
RECOMMENDATIONS FOR UNUSED INPUT AND OUTPUT PINS
OUTPUTS:
LVCMOS OUTPUT:
All unused LVCMOS output can be left floating. We recommend
that there is no trace attached.
C2
SPARE
R5
1K
VC = 0V to VDD
VDD
C1
SPARE
U1
81006
2
3
4
5
6
7
8
9
11
12
13
14
17
18
19
20
10
16
15
1
XTAL_OUT
VDD
VC
DIV_SEL_Q5
OE
1
GN
D
Q5
VD
D
O
GND
Q3
VDDO
Q2
VD
D
O
Q0
GN
D
OE
0
Q4
Q
1
GND
XTAL_IN
Zo = 50
(U1-13)
C3
0.1uF
Unused outputs can be left floating. There should be
no trace attached to unused outputs. Device
characterized and specification limits set with all
outputs terminated.
C6
0.1uF
C5
0.1uF
C7
10uf
Pull-up
example
(U1-9)
R4
1K
Quartz crystal should be
placed as close to the
device as possible.
VDDO
Pull-down
example
VDD
R3
1K
VDDO
R1
30
VDD
R2
30
VC
C4
0.1uF
XTAL
(U1-17)
Zo = 50
VDD
(U1-3)
81006I
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相关代理商/技术参数
ICS81006AKT 制造商:ICS 制造商全称:ICS 功能描述:VCXO-TO-6 LVCMOS OUTPUTS
ICS81006I 制造商:IDT 制造商全称:Integrated Device Technology 功能描述:VCXO-TO-LVCMOS OUTPUTS
ICS810-06I 制造商:ICS 制造商全称:ICS 功能描述:VCXO-TO-6 LVCMOS OUTPUTS
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