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Electrical Connections
The SAW resonator is bidirectional and
may be installed with either orientation.
Pin
1
Connection
NC
Power Test
The two terminals are interchangeable
and unnumbered. The callout NC
indicates no internal connection. The NC
pads assist with mechanical positioning
and stability. External grounding of the NC
2
3
4
5
Terminal
NC
NC
Terminal
50 Ω Source
at F C
P INCIDENT
P REFLECTED
Low-Loss
Matching
Network to
50 Ω
6
1
2
5
3
4
pads is recommended to help reduce
6
NC
parasitic capacitance in the circuit.
Typical Application Circuits
B
C
G
H
Typical Low-Power Transmitter Application
1
6
6
1
Modulation
Input
200k Ω
C1
+9VDC
A 2
5
E
5
2
I
L1
(Antenna)
47
4
3
1
2
3
3
4
6
5
4
Case Dimensions
D
J
ROXXXXC
Bottom View
C2
470
Typical Local Oscillator Application
200k Ω
RF Bypass
Output
Dimension
Min
mm
Nom
Max
Min
Inches
Nom
Max
+VDC
C1
L1
+VDC
A
B
C
D
E
3.60
3.60
1.00
0.95
2.39
3.80
3.80
1.20
1.10
2.54
4.0
4.0
1.40
1.25
2.69
0.14
0.14
0.04
0.033
0.090
0.15
0.15
0.05
0.043
0.10
0.16
0.16
0.055
0.05
0.110
ROXXXXC
Bottom View
6
1
2
5
3
4
C2
RF Bypass
G
H
0.90
1.90
1.0
2.0
1.10
2.10
0.035
0.75
0.04
0.08
0.043
0.83
I
J
0.50
1.70
0.6
1.8
0.70
1.90
0.020
0.067
0.024
0.07
0.028
0.075
Equivalent LC Model
0.05 pF*
Typical Test Circuit
The test circuit inductor, L TEST , is tuned to resonate with the static
capacitance, C O , at F C .
Electrical Test
Cp
Co = Cp + 0.05 pF
*Case Parasitics
Rm
Lm
Cm
Temperature Characteristics
The curve shown on the right accounts for resonator contribution only and
does not include LC component temperature contributions.
6
1
0
f C = f O , T C = T O
0
From 50 Ω
5
2
To 50 Ω
-50
-50
Network Analyzer
Network Analyzer
4
3
-100
-150
-200
-80 -60 -40 -20
-100
-150
-200
0 +20 +40 +60 +80
Δ T = T C - T O ( °C )
www.RFM.com E-mail: info@rfm.com
?2008 by RF Monolithics, Inc.
Page 2 of 2
RO3164D - 3/27/08
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