RO3164D-3 Datasheet, PDF (2/2 Pages) Murata Manufacturing Co., Ltd. – 868.35 MHz SAW Resonator

868.35 MHz
SAW Resonator
Electrical Connections
Pin
The SAW resonator is bidirectional and
1
may be installed with either orientation.
The two terminals are interchangeable
2
and unnumbered. The callout NC indi-
3
cates no internal connection. The NC
4
pads assist with mechanical positioning
5
and stability. External grounding of the
NC pads is recommended to help reduce
6
parasitic capacitance in the circuit.
Connection
NC
Terminal
NC
NC
Terminal
NC
B
C
1
6
G
6
H
1
A2
5
E
5
2I
3
4
4
3
D
J
Case Dimensions
Dimension
mm
Min Nom Max Min
A
3.60 3.80 4.0 0.14
B
3.60 3.80 4.0 0.14
C
1.00 1.20 1.40 0.04
D
0.95 1.10 1.25 0.033
E
2.39 2.54 2.69 0.090
G
0.90 1.0 1.10 0.035
H
1.90 2.0 2.10 0.75
I
0.50 0.6 0.70 0.020
J
1.70 1.8 1.90 0.067
Inches
Nom
0.15
0.15
0.05
0.043
0.10
0.04
0.08
0.024
0.07
Max
0.16
0.16
0.055
0.05
0.110
0.043
0.83
0.028
0.075
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
∆T = T_C - T _O ( °C )
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RO3164D-3(R) - 4/29/09