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RO3164D-3
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Ideal for 868.35 MHz Transmitters
Very Low Series Resistance
Quartz Stability
Complies with Directive 2002/95/EC (RoHS)
868.35 MHz
SAW Resonator
Pb
The RO3164D-3 is a true one-port, surface-acoustic-wave (SAW) resonator in a surface-mount ceramic
case. It provides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency transmitters
operating at 868.35 MHz.
Absolute Maximum Ratings
Rating
Input Power Level
Value
12
VDC
SM3838-6 Case
°C
3.8 X 3.8
260
°C
Soldering Temperature (10 seconds / 5 cycles maximum)
Characteristic
Center Frequency, +25°C ±2°C
Sym
fC
Insertion Loss
Quality Factor
Temperature Stability
Frequency Aging
Notes
2,3,4,5
ΔfC
Center Frequence Tolerance from 868.350 MHz
Unloaded Q
1.1
QU
5,6,7
24000
QL
Turnover Temperature
TO
Turnover Frequency
fO
Maximum
868.425
Units
MHz
±75
kHz
2.0
dB
4000
10
6,7,8
Frequency Temperature Coefficient
FTC
Absolute Value during the First Year
|fA|
1
5
Motional Resistance
RM
Motional Inductance
LM
Motional Capacitance
CM
Shunt Static Capacitance
CO
5, 6, 9
LTEST
2, 7
5, 6, 7, 9
Lid Symbolization (in addition to Lot and/or Date Codes)
Standard Reel Quantity
Typical
2,5,6
50 Ω Loaded Q
Test Fixture Shunt Inductance
Minimum
868.275
IL
DC Insulation Resistance between Any Two Terminals
RF Equivalent RLC Model
dBm
-40 to +85
DC Voltage
Case Temperature
Units
0
25
40
°C
fC
kHz
0.032
ppm/°C2
ppm/yr
<±10
1.0
MΩ
18.0
Ω
12.0
µH
2.1
fF
2.0
pF
19.4
nH
845 / YWWS
Reel Size 7 Inch
500 Pieces / Reel
Reel Size 13 Inch
3000 Pieces / Reel
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
NOTES:
1.
2.
3.
4.
5.
6.
Frequency aging is the change in fC with time and is specified at +65°C or less.
Aging may exceed the specification for prolonged temperatures above +65°C.
Typically, aging is greatest the first year after manufacture, decreasing in
subsequent years.
The center frequency, fC, is measured at the minimum insertion loss point, ILMIN,
with the resonator in the 50 Ω test system (VSWR ≤ 1.2:1). The shunt
inductance, LTEST, is tuned for parallel resonance with CO at fC. Typically,
fOSCILLATOR or fTRANSMITTER is approximately equal to the resonator fC.
One or more of the following United States patents apply: 4,454,488 and
4,616,197.
Typically, equipment utilizing this device requires emissions testing and
government approval, which is the responsibility of the equipment manufacturer.
Unless noted otherwise, case temperature TC = +25°C±2°C.
The design, manufacturing process, and specifications of this device are subject
©2010-2015 by Murata Electronics N.A., Inc.
RO3164D-3 (R) 2/10/15
7.
8.
9.
Page 1 of 2
to change without notice.
Derived mathematically from one or more of the following directly measured
parameters: fC, IL, 3 dB bandwidth, fC versus TC, and CO.
Turnover temperature, TO, is the temperature of maximum (or turnover)
frequency, fO. The nominal frequency at any case temperature, TC, may be
calculated from: f = fO [1 - FTC (TO -TC)2]. Typically oscillator TO is
approximately equal to the specified resonator TO.
This equivalent RLC model approximates resonator performance near the
resonant frequency and is provided for reference only. The capacitance CO is
the static (nonmotional) capacitance between the two terminals measured at low
frequency (10 MHz) with a capacitance meter. The measurement includes
parasitic capacitance with "NC” pads unconnected. Case parasitic capacitance
is approximately 0.05 pF. Transducer parallel capacitance can by calculated as:
CP ≈ CO - 0.05 pF.
www.murata.com
Electrical Connections
Pin
The SAW resonator is bidirectional and
may be installed with either orientation.
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 pads is recommended to help reduce
parasitic capacitance in the circuit.
Power Test
Connection
1
NC
2
Terminal
3
NC
4
NC
5
Terminal
6
NC
50 Ω Source
at F C
P INCIDENT
Low-Loss
Matching
Network to
50 Ω
P REFLECTED
1
6
2
3
5
4
Typical Application Circuits
B
G
C
H
Typical Low-Power Transmitter Application
6
1
A 2
5
3
4
E
6
1
5
2
4
3
Modulation
Input
200k Ω
+9VDC
C1
(Antenna)
1
6
D
47
L1
I
2
3
5
4
J
C2
ROXXXXC
Bottom View
RF Bypass
470
Typical Local Oscillator Application
Case Dimensions
Dimension
A
B
C
D
E
G
H
I
J
Min
3.60
3.60
1.00
0.95
2.39
0.90
1.90
0.50
1.70
Output
200k Ω
mm
Nom
3.80
3.80
1.20
1.10
2.54
1.0
2.0
0.6
1.8
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
0.033
0.090
0.035
0.75
0.020
0.067
Inches
Nom
0.15
0.15
0.05
0.043
0.10
0.04
0.08
0.024
0.07
+VDC
Max
0.16
0.16
0.055
0.05
0.110
0.043
0.83
0.028
0.075
C1
+VDC
L1
1
6
2
3
5
4
C2
ROXXXXC
Bottom View
RF Bypass
Equivalent LC Model
0.05 pF*
Typical Test Circuit
Co = Cp + 0.05 pF
Cp
The test circuit inductor, LTEST, is tuned to resonate with the static
*Case Parasitics
capacitance, CO, at FC.
Electrical Test
Rm
Lm
Cm
Temperature Characteristics
The curve shown on the right accounts for resonator contribution only and
does not include LC component temperature contributions.
fC = f O , T C = T O
6
1
5
2
4
3
To 50 Ω
Network Analyzer
-50
-50
-100
-100
-150
-150
(f-fo ) / fo (ppm)
From 50 Ω
Network Analyzer
0
0
-200
-80 -60 -40 -20
-200
0 +20 +40 +60 +80
ΔT = T C - T O ( °C )
©2010-2015 by Murata Electronics N.A., Inc.
RO3164D-3 (R) 2/10/15
Page 2 of 2
www.murata.com
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