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RP1308
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Ideal for 433.92 MHz Low-Power Transmitters
Nominal Insertion Phase Shift of 180° at Resonance
Quartz Stability
433.92 MHz
SAW Resonator
Rugged, Hermetic, Low-Profile TO39 Case
Pb
Complies with Directive 2002/95/EC (RoHS)
The RP1308 is a two-port, 180° surface-acoustic-wave (SAW) resonator in a low-profile TO39
case. It provides reliable, fundamental-mode, quartz frequency stabilization of AM, FSK, or PSK
transmitters operating at 433.92 MHz. The RP1308 was designed specifically for remote-control
and wireless security transmitters operating in Europe under ETSI I-ETS 300 220 and in Germany
under FTZ 17 TR 2100.
Absolute Maximum Ratings
Rating
Value
Units
CW RF Power Dissipation (See: Typical Test Circuit)
+0
dBm
VDC
°C
TO39-3 Case
DC Voltage Between Any Two Pins (Observe ESD Precautions)
Case Temperature
±30
-40 to +85
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
MHz
Center Frequency
fC
Absolute Frequency
433.845
433.995
2, 3, 4, 5,
ΔfC
IL
Tolerance from 433.920 MHz
±75
8.0
kHz
dB
Insertion Loss
Quality Factor
2, 5, 6
5, 6, 7
6.3
QU
QL
TO
fO
Unloaded Q
12,000
50 Ω Loaded Q
6,300
51
Temperature Stability
Turnover Temperature
Turnover Frequency
Frequency Temp. Coefficient
Absolute Value during First Year
36
1.0
1.4
66
°C
fC+11
0.037
≤ 10
6, 7, 8
kHz
ppm/°C2
ppm/yr
FTC
|fA|
Frequency Aging
6
5
DC Insulation Resistance between Any Two Pins
MΩ
Ω
RF Equivalent RLC
RM
LM
CM
CO
Motional Resistance
Motional Inductance
Motional Capacitance
Shunt Static Capacitance
107
481.378
0.279470
1.7
152
2.0
5, 7, 9
5, 6, 9
µH
fF
pF
Lid Symbolization (in addition to Lot and/or Date Codes)
RFM P1308
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 frequency fC is the frequency of minimum IL with the resonator in the specified test fixture in a 50 Ω test system with VSWR ≤ 1.2:1. Typically,
fOSCILLATOR or fTRANSMITTER is less than the resonator fC.
3. One or more of the following United States patents apply: 4,454,488; 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°C± 5°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 TO is 20° 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
C
O is the measured static (nonmotional) capacitance between either pin 1 and ground or pin 2 and ground. The measurement includes case parasitic
capacitance.
©2010-2015 by Murata Electronics N.A., Inc.
RP1308 (R) 2/12/15
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