RO3164E-1_15 Datasheet, PDF (2/2 Pages) Murata Manufacturing Co., Ltd. – 868.35 MHz SAW Resonator

Electrical Connections
The SAW resonator is bidirectional and
Pin
may be installed with either orientation.
1
The two terminals are interchangeable
and unnumbered. The callout NC
2
indicates no internal connection. The NC
3
pads assist with mechanical positioning
4
and stability. External grounding of the NC
pads is recommended to help reduce
5
parasitic capacitance in the circuit.
6
Connection
NC
Terminal
NC
NC
Terminal
NC
B
C
1
6
G
6
H
1
A2
5
E F5
2I
3
4
4
3
D
J
Case Dimensions
Dimension
Min
A
2.87
B
2.87
C
1.12
D
0.77
E
2.67
F
1.47
G
0.72
H
1.37
I
0.47
J
1.17
mm
Nom
3.0
3.0
1.25
0.90
2.80
1.6
0.85
1.5
0.60
1.30
Max
3.13
3.13
1.38
1.03
2.93
1.73
0.98
1.63
0.73
1.43
Min
0.113
0.113
0.044
0.030
0.105
0.058
0.028
0.054
0.019
0.046
Inches
Nom
0.118
0.118
0.049
0.035
0.110
0.063
0.033
0.059
0.024
0.051
Max
0.123
0.123
0.054
0.040
0.115
0.068
0.038
0.064
0.029
0.056
Typical Test Circuit
The test circuit inductor, L_TEST, is tuned to resonate with the static
capacitance, C_O, at F_C.
Electrical Test
From 50 Ω
Network Analyzer
6
1
5
2
4
3
To 50 Ω
Network Analyzer
Power Test
50 Ω Source
at F _C
P _INCIDENT
P _REFLECTED
Low-Loss
Matching
Network to
50 Ω
2
3
1
6
5
4
Typical Application Circuits
Typical Low-Power Transmitter Application
200k Ω
Modulation
Input
C1
2
3
1
6
5
4
C2
ROXXXXC
Bottom View
+VDC
470
Typical Local Oscillator Application
200k Ω
C1
+9VDC
47
L1
(Antenna)
RF Bypass
Output
+VDC
L1
ROXXXXC
Bottom View
2
3
1
6
5
4
C2
RF Bypass
Equivalent LC Model
0.05 pF*
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.
f_C = f_O , T_C = T _O
0
0
-50
-50
-100
-100
-150
-150
-200
-200
-80 -60 -40 -20 0 +20 +40 +60 +80
ΔT = T_C - T _O ( °C )
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©2008 by RF Monolithics, Inc.
Page 2 of 2
RO3164E - 3/27/08