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RO3104 Datasheet(PDF) 1 Page - Murata Manufacturing Co., Ltd.

Part # RO3104
Description  303.825 MHz SAW Resonator
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Manufacturer  MURATA [Murata Manufacturing Co., Ltd.]
Direct Link  http://www.murata.com
Logo MURATA - Murata Manufacturing Co., Ltd.

RO3104 Datasheet(HTML) 1 Page - Murata Manufacturing Co., Ltd.

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www.RFM.com E-mail: info@rfm.com
Page 1 of 2
©2009 by RF Monolithics, Inc.
RO3104 - 2/4/09
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Center Frequency (+25 °C)
Absolute Frequency
fC
2, 3, 4, 5
303.750
303.900
MHz
Tolerance from 303.825 MHz
∆fC
±75
kHz
Insertion Loss
IL
2, 5, 6
1.3
2.0
dB
Quality Factor
Unloaded Q
QU
5, 6, 7
13000
50
Ω Loaded Q
QL
1700
Temperature Stability
Turnover Temperature
TO
6, 7, 8
10
25
40
°C
Turnover Frequency
fO
fc
Frequency Temperature Coefficient
FTC
0.037
ppm/°C2
Frequency Aging
Absolute Value during the First Year
|fA|1
≤10
ppm/yr
DC Insulation Resistance between Any Two Pins
5
1.0
M
RF Equivalent RLC Model
Motional Resistance
RM
5, 7, 9
15
Motional Inductance
LM
103
µH
Motional Capacitance
CM
2.6
fF
Pin 1 to Pin 2 Static Capacitance
CO
5, 6, 9
2.3
pF
Transducer Static Capacitance
CP
5, 6, 7, 9
2.0
pF
Test Fixture Shunt Inductance
LTEST
2, 7
122
nH
Lid Symbolization (in Addition to Lot and/or Date Codes)
RFM RO3104
TO39-3 Case
• Ideal for 303.825 MHz Transmitters in USA and Others
• Very Low Series Resistance
• Quartz Stability
• Rugged, Hermetic, Low-Profile TO39 Case
• Complies with Directive 2002/95/EC (RoHS)
The RO3104 is a true one-port, surface-acoustic-wave (SAW) resonator in a low-profile TO39 case. It
provides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency transmitters operating
at 303.825 MHz (often referred to as the 303.875 MHz channel). The RO3104 is designed for remote-control
and wireless security transmitters operating in the USA under FCC Part 15, in Japan, in Australia, and in
Korea.
Absolute Maximum Ratings
Rating
Value
Units
CW RF Power Dissipation (See: Typical Test Circuit)
+0
dBm
DC Voltage Between Any Two Pins (Observe ESD Precautions)
±30
VDC
Case Temperature
-40 to +85
°C
Soldering Temperature (10 seconds / 5 cycles maximum)
260
°C
303.825 MHz
SAW
Resonator
RO3104
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
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 significantly in subsequent years.
2.
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 less than the resonator fC.
3.
One or more of the following United States patents apply: 4,454,488 and
4,616,197 and others pending.
4.
Typically, equipment designs utilizing this device require emissions testing
and government approval, which is the responsibility of the equipment
manufacturer.
5.
Unless noted otherwise, case temperature TC = +25°C±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.
8.
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 T
O is 20°C
less than the specified resonator TO.
9.
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 pin1 and pin 2 measured
at low frequency (10 MHz) with a capacitance meter. The measurement
includes case parasitic capacitance with a floating case. For usual
grounded case applications (with ground connected to either pin 1 or pin 2
and to the case), add approximately 0.25 pF to CO.
Pb


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