參數(shù)資料
型號(hào)： RO2104D
廠商： RF Monolithics, Inc.
英文描述： 303.825 MHz SAW Resonator
中文描述： 303.825兆赫聲表面波諧振器
文件頁(yè)數(shù)： 2/2頁(yè)
文件大?。?/td> 98K
代理商： RO2104D
303.825 MHz SAW Resonator
RF Monolithics, Inc.
RFM Europe
1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
Phone: (972) 233-2903
Phone: 44 1963 251383
Fax: (972) 387-8148
Fax: 44 1963 251510
E-mail: info@rfm.com
http://www.rfm.com
RO2104D-072804
Page 2 of 2
-80 -60 -40 -20
0 +20 +40 +60
0
-50
-100
-150
+80
-200
0
-50
-100
-150
-200
f
C
= f
O
, T
C
= T
O
T = T
C
- T
O
( °C )
(
o
)
0.05 pF*
0.05 pF
Cp
Co
+
=
*Case Parasitics
Cp
Rm
Lm
Cm
Equivalent LC Mode
l
Temperature Characteristics
The curve shown on the right accounts for resonator contribution only and
does not include LC component temperature contributions
.
Pin
1
2
3
4
5
6
Connection
NC
Terminal
NC
NC
Terminal
NC
Power Test
Electrical Connections
The SAW resonator is bidirectional and
may be installed with either orientation.
The two terminals are interchangeable
and unnumbered. The callout NC indi-
cates no internal connection. The NC
pads assist with mechanical positioning
and stability. External grounding of the
NC pads is recommended to help reduce
parasitic capacitance in the circuit.
Typical Test Circuit
The test circuit inductor, L
TEST
, is tuned to resonate with the static
capacitance, C
O
, at F
C
.
Electrical Test
Typical Application Circuits
From 50
Network Analyzer
To 50
Network Analyzer
2
3
6
5
4
1
Low-Loss
Matching
Network to
50
50
Source
at F
C
P
INCIDENT
P
REFLECTED
2 3
6 5 4
1
Modulation
Input
ROXXXXC
Bottom View
200k
C1
L1
(Antenna)
47
+9VDC
C2
RF Bypass
470
Typical Low-Power Transmitter Application
2 3
6 5 4
1
+VDC
ROXXXXC
Bottom View
200k
C1
L1
+VDC
C2
RF Bypass
Typical Local Oscillator Application
Output
2 3
6 5 4
1
1
2
3
6
5
4
1
2
3
6
5
4
A
B
C
D
J
E
G
H
I
Case Dimensions
Dimension
mm
Nom
3.80
3.80
1.20
1.10
2.54
1.0
2.0
0.6
1.8
Inches
Nom
0.15
0.15
0.05
0.043
0.10
0.04
0.08
0.024
0.07
Min
3.60
3.60
1.00
0.95
2.39
0.90
1.90
0.50
1.70
Max
4.0
4.0
1.40
1.25
2.69
1.10
2.10
0.70
1.90
Min
0.14
0.14
0.04
0.037
0.090
0.035
0.75
0.020
0.067
Max
0.16
0.16
0.055
0.05
0.110
0.043
0.83
0.028
0.075
A
B
C
D
E
G
H
I
J
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