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RO2103A Datasheet(PDF) 1 Page - RF Monolithics, Inc

Part # RO2103A
Description  418.0 MHz SAW Resonator
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Manufacturer  RFM [RF Monolithics, Inc]
Direct Link  http://www.rfm.com
Logo RFM - RF Monolithics, Inc

RO2103A Datasheet(HTML) 1 Page - RF Monolithics, Inc

  RO2103A Datasheet HTML 1Page - RF Monolithics, Inc RO2103A Datasheet HTML 2Page - RF Monolithics, Inc  
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®
RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-8148
E-mail: info@rfm.com
Page 1 of 2
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
http://www.rfm.com
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
RO2103A-061901
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Frequency (+25 °C)
Nominal Frequency
fC
2, 3, 4, 5
417.925
418.075
MHz
Tolerance from 418.000 MHz
∆f
C
±75
kHz
Insertion Loss
IL
2, 5, 6
1.0
2.0
dB
Quality Factor
Unloaded Q
QU
5, 6, 7
16,100
50
Ω Loaded Q
QL
1,700
Temperature Stability
Turnover Temperature
TO
6, 7, 8
10
25
40
°C
Turnover Frequency
fO
fC
Frequency Temperature Coefficient
FTC
0.032
ppm/°C2
Frequency Aging
Absolute Value during the First Year
|fA|
1, 6
10
ppm/yr
DC Insulation Resistance between Any Two Terminals
5
1.0
M
RF Equivalent RLC Model
Motional Resistance
RM
5, 6, 7, 9
12
26
Motional Inductance
LM
74.8223
µH
Motional Capacitance
CM
1.93705
fF
Transducer Static Capacitance
CO
5, 6, 9
1.6
1.9
2.2
pF
Test Fixture Shunt Inductance
LTEST
2, 7
80
nH
Lid Symbolization
106
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.
Absolute Maximum Ratings
Rating
Value
Units
CW RF Power Dissipation (See Typical Test Circuit)
+0
dBm
DC Voltage Between Terminals (Observe ESD Precautions)
±30
VDC
Case Temperature
-40 to +85
°C
Soldering Temperature (10 seconds / 5 cycles max.)
260
°C
418.0 MHz
SAW
Resonator
RO2103A
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 in subse-
quent 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, fOS-
CILLATOR 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 govern-
ment 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) fre-
quency, fO. The nominal frequency at any case temperature, TC, may be calcu-
lated from: f= fO [1- FTC (TO -TC)
2]. Typically oscillator T
O is approximately
equal to the specified resonator TO.
9.
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
frequency (10 MHz) with a capacitance meter. The measurement includes para-
sitic 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.
SM-2 Case


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