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RO3134A_14 Datasheet, PDF (1/2 Pages) Murata Manufacturing Co., Ltd. – 372.5 MHz SAW Resonator
RFM products are now
Murata products.
• Very Low Series Resistance
• Quartz Stability
• Surface-mount Ceramic Case
Pb
• Complies with Directive 2002/95/EC (RoHS)
The RO3134A is a one-port surface-acoustic-wave (SAW) resonator packaged in a surface-mount ceramic
case. It provides reliable, fundamental-mode quartz frequency stabilization of local oscillators operating at
372.5 MHz.
Absolute Maximum Ratings
Rating
CW RF Power Dissipation (See Typical Test Circuit)
DC Voltage Between Terminals (Observe ESD Precautions)
Case Temperature
Soldering Temperature (10 seconds / 5 cycles maximum)
Value
+10
±30
-40 to +85
260
Units
dBm
VDC
°C
°C
RO3134A
372.5 MHz
SAW
Resonator
SM5035-4
Characteristic
Frequency, +25 °C
Nominal Frequency
Tolerance from 372.500 MHz
Insertion Loss
Quality Factor
Unloaded Q
50 Loaded Q
Temperature Stability
Turnover Temperature
Turnover Frequency
Frequency Temperature Coefficient
Frequency Aging
Absolute Value during the First Year
DC Insulation Resistance between Any Two Terminals
RF Equivalent RLC Model Motional Resistance
Motional Inductance
Motional Capacitance
Shunt Static Capacitance
Test Fixture Shunt Inductance
Lid Symbolization
Sym
fC
fC
IL
QU
QL
TO
fO
FTC
|fA|
RM
LM
CM
CO
LTEST
Notes
2, 3, 4, 5
2, 5, 6
5, 6, 7
6, 7, 8
1, 6
5
5, 6, 7, 9
5, 6, 9
2, 7
Minimum
372.400
Typical
1.0
15,400
1,700
10
25
fC
0.032
10
1.0
12.7
83
2.2
2.4
76
836//YYWWSR
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Maximum
372.600
±100
2.2
Units
MHz
kHz
dB
40
°C
ppm/°C2
ppm/yr
M

µH
fF
pF
nH
NOTES:
1. Frequency aging is the change in fC with time and is specified at +65 °C or 8.
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.
2.
The center frequency, fC, is measured at the minimum insertion loss point,
ILMIN, with the resonator in the 50  test system (VSWR  1.2:1). The
9.
shunt inductance, LTEST, is tuned for parallel resonance with CO at fC.
Typically, fOSCILLATOR or fTRANSMITTER is approximately equal to the
resonator fC.
3. One or more of the following United States patents apply: 4,454,488 and
4,616,197.
4. Typically, equipment utilizing this device requires emissions testing and
government approval, which is the responsibility of the equipment
manufacturer.
5. Unless noted otherwise, case temperature TC = +25 ± 2 °C.
6. The design, manufacturing process, and specifications of this device are
subject to change without notice.
7. Derived mathematically from one or more of the following directly
measured parameters: fC, IL, 3 dB bandwidth, fC versus TC, and CO.
©2010-2014 by Murata Electronics N.A., Inc.
RO3134A (R) 4/22/14
Page 1 of 2
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.
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