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PDF RO2103A Data sheet ( Hoja de datos )
| Número de pieza | RO2103A | |
| Descripción | 418.0 MHz SAW Resonator | |
| Fabricantes | RF Monolithics | |
| Logotipo |  |
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® RO2103A
• Ideal for 418 MHz Transmitters in the U.K. and U.S.
• Very Low Series Resistance
• Quartz Stability
• Surface-Mount, Ceramic Case with 21 mm2 Footprint
• Complies with Directive 2002/95/EC (RoHS)
The RO2103A 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 operat-
ing at 418.0 MHz. This SAW is designed for remote-control and wireless security transmitters operating in
the United Kingdom under DTI MPT 1340 and in the USA under FCC Part 15.
418.0 MHz
SAW
Resonator
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 max.)
Value
+0
±30
-40 to +85
260
Units
dBm
VDC
°C
°C
SM-2 Case
Electrical Characteristics
Characteristic
Frequency (+25 °C)
Nominal Frequency
Tolerance from 418.000 MHz
Insertion Loss
Quality Factor
Unloaded Q
50 Ω 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
Transducer 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
417.925
Typical
1.0
16,100
1,700
10 25
fC
0.032
10
1.0
12
74.8223
1.93705
1.6 1.9
80
106
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
Maximum
418.075
±75
2.0
Units
MHz
kHz
dB
40 °C
ppm/°C2
ppm/yr
MΩ
26 Ω
µH
fF
2.2 pF
nH
1. Frequency aging is the change in fC with time and is specified at +65°C or less. 8. Turnover temperature, TO, is the temperature of maximum (or turnover) fre-
Aging may exceed the specification for prolonged temperatures above +65°C.
quency, fO. The nominal frequency at any case temperature, TC, may be calcu-
2.
Typically, aging is greatest the first year after manufacture, decreasing in subse-
quent 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, fOS-
9.
lated 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 reso-
nant frequency and is provided for reference only. The capacitance CO is the
static (nonmotional) capacitance between the two terminals measured at low
CILLATOR or fTRANSMITTER is approximately equal to the resonator fC.
frequency (10 MHz) with a capacitance meter. The measurement includes para-
3. One or more of the following United States patents apply: 4,454,488 and
sitic capacitance with "NC” pads unconnected. Case parasitic capacitance is
4,616,197.
approximately 0.05 pF. Transducer parallel capacitance can by calculated as:
4. Typically, equipment utilizing this device requires emissions testing and govern-
ment approval, which is the responsibility of the equipment manufacturer.
CP ≈ CO - 0.05 pF.
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.
RF Monolithics, Inc. Phone: (972) 233-2903
Fax: (972) 387-8148
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: [email protected]
http://www.rfm.com
RO2103A-061901
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