RO3103D
• Ideal for 418.0 MHz Transmitters
• Very Low Series Resistance
418.00 MHz
SAW
• Quartz Stability
• Surface-Mount, Ceramic Case with 21 mm2 Footprint
• Complies with Directive 2002/95/EC (RoHS)
Pb
Resonator
The RO3103D 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
operating at 418.0 MHz. This SAW is designed specifically for AM transmitters in wireless security and remote
control applications operating in the USA under FCC Part 15, in Australia, in Japan, and in Korea.
Absolute Maximum Ratings
Rating
Value
Units
dBm
VDC
°C
CW RF Power Dissipation (See Typical Test Circuit)
DC Voltage Between Terminals (Observe ESD Precautions)
Case Temperature
0
12
-40 to +85
260
SM3838-6 Case
3.8 X 3.8
Soldering Temperature (10 seconds / 5 cycles max.)
°C
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
f
Frequency (+25 °C)
Nominal Frequency
417.925
418.075
MHz
kHz
dB
C
2, 3, 4, 5
Δf
Tolerance from 418.0 MHz
±75
2.0
C
Insertion Loss
Quality Factor
IL
2, 5, 6
5, 6, 7
1.4
10400
1400
25
Q
Unloaded Q
U
Q
T
50 Ω Loaded Q
L
Temperature Stability
Turnover Temperature
Turnover Frequency
10
40
°C
O
f
f
6, 7, 8
O
C
2
Frequency Temperature Coefficient
Absolute Value during the First Year
FTC
0.032
10
ppm/°C
|f |
Frequency Aging
1, 6
5
ppm/yr
MΩ
Ω
A
DC Insulation Resistance between Any Two Terminals
1.0
R
RF Equivalent RLC Model
Motional Resistance
16.7
64.8
2.2
M
5, 6, 7,
9,
L
Motional Inductance
µH
M
C
Motional Capacitance
Transducer Static Capacitance
fF
M
C
5, 6, 9
2, 7
2.4
pF
O
L
Test Fixture Shunt Inductance
Lid Symbolization
60.1
nH
TEST
717 // YWWS
500 Pieces/Reel
3000 Pieces/Reel
Reel Size 7 Inch
Reel Size 13 Inch
Standard Reel Quantity
10
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
2.
Frequency aging is the change in f with time and is specified at +65°C or
C
subject to change.
Derived mathematically from one or more of the following directly
measured parameters: f , IL, 3 dB bandwidth, f versus T , and C .
7.
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.
C
C
C
O
Turnover temperature, T , is the temperature of maximum (or turnover)
O
The center frequency, f , is measured at the minimum insertion loss point,
frequency, f . The nominal frequency at any case temperature, T , may be
C
O
C
IL , with the resonator in the 50 Ω test system (VSWR ≤ 1.2:1). The
2
MIN
calculated from: f = f [1 - FTC (T -T ) ]. Typically oscillator T is
approximately equal to the specified resonator T .
This equivalent RLC model approximates resonator performance near the
resonant frequency and is provided for reference only. The capacitance C
is the static (nonmotional) capacitance between the two terminals
measured at low frequency (10 MHz) with a capacitance meter. The
O
O
C
O
shunt inductance, L
, is tuned for parallel resonance with C at f .
TEST
O C
O
Typically, f
or f
is approximately equal to the
TRANSMITTER
OSCILLATOR
9.
resonator f .
C
O
3.
4.
One or more of the following United States patents apply: 4,454,488 and
4,616,197.
Typically, equipment utilizing this device requires emissions testing and
government approval, which is the responsibility of the equipment
manufacturer.
measurement includes parasitic capacitance with "NC” pads unconnected.
Case parasitic capacitance is approximately 0.05 pF. Transducer parallel
capacitance can by calculated as: C ≈ C - 0.05 pF.
P
O
5.
6.
Unless noted otherwise, case temperature T = +25°C±2°C.
C
10. Tape and Reel Standard Per ANSI / EIA 481.
The design, manufacturing process, and specifications of this device are
www.RFM.com
E-mail: info@rfm.com
Page 1 of 2
©2008 by RF Monolithics, Inc.
RO3103D - 3/26/08