RFM products are now Murata products.

RFM products are now Murata products.
RFM products are now
Murata products.
RO3103E
•
•
•
•
•
Ideal for 418.00 MHz Remote Control and Security Transmitters
Very Low Series Resistance
Quartz Stability
Pb
Surface-mount Ceramic Case
Complies with Directive 2002/95/EC (RoHS)
418.00 MHz
SAW
Resonator
The RO3103E 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 418.00 MHz. This SAW is designed specifically for AM transmitters used in remote control and
wireless security applications.
Absolute Maximum Ratings
Rating
Value
Units
0
dBm
CW RF Power Dissipation (See Test Circuit)
DC Voltage Between Terminals (Observe ESD Precautions)
Case Temperature
12
VDC
-40 to +85
°C
+260
°C
Soldering Temperature (10 seconds / 5 cycles maximum)
SM3030-6 Case
3.0 X 3.0
Electrical Characteristics
Characteristic
Frequency, +25 °C
Sym
fC
Nominal Frequency
Tolerance from 418.00 MHz
Quality Factor
Temperature Stability
Frequency Aging
2, 3, 4, 5
fC
Insertion Loss
IL
Unloaded Q
QU
50 Loaded Q
QL
Turnover Temperature
TO
Turnover Frequency
fO
FTC
|fA|
25
5
Motional Inductance
LM
Motional Capacitance
CM
Transducer Static Capacitance
CO
5, 6, 9
LTEST
2, 7
5, 6, 7,
9,
MHz
±75
kHz
2.0
dB
40
°C
fC
ppm/°C2
ppm/yr
0.032
RM
Units
418.075
1500
1, 6
Motional Resistance
Maximum
10700
10
Lid Symbolization
Standard Reel Quantity
1.3
6, 7, 8
Frequency Temperature Coefficient
Typical
417.925
5, 6, 7
Absolute Value during the First Year
Test Fixture Shunt Inductance
Minimum
2, 5, 6
DC Insulation Resistance between Any Two Terminals
RF Equivalent RLC Model
Notes
10
1.0
M
16.7

67
µH
2.2
fF
2.4
pF
62
nH
676 // YWWS
Reel Size 7 Inch
10
Reel Size 13 Inch
500 Pieces/Reel
3000 Pieces/Reel
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
NOTES:
1.
2.
3.
4.
5.
6.
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 subsequent years.
The center frequency, fC, is measured at the minimum insertion loss point,
ILMIN, with the resonator in the 50  test system (VSWR  1.2:1). The
shunt inductance, LTEST, is tuned for parallel resonance with CO at fC.
Typically, fOSCILLATOR or fTRANSMITTER is approximately equal to the
resonator fC.
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.
Unless noted otherwise, case temperature TC = +25 ± 2 °C.
The design, manufacturing process, and specifications of this device are
©2010-2014 by Murata Electronics N.A., Inc.
RO3103E (R) 4/8/14
7.
8.
9.
10.
Page 1 of 2
subject to change.
Derived mathematically from one or more of the following directly
measured parameters: fC, IL, 3 dB bandwidth, fC versus TC, and CO.
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
approximately equal to the specified resonator TO.
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 the two terminals
measured at low frequency (10 MHz) with a capacitance meter. The
measurement includes parasitic 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.
Tape and Reel Standard Per ANSI / EIA 481.
www.murata.com
Pin
The SAW resonator is bidirectional and
may be installed with either orientation.
The two terminals are interchangeable
and unnumbered. The callout NC
indicates no internal connection. The NC
pads assist with mechanical positioning
and stability. External grounding of the NC
pads is recommended to help reduce
parasitic capacitance in the circuit.
B
NC
2
Terminal
3
NC
4
NC
5
Terminal
6
NC
6
A 2
5
3
4
E
F
The curve shown accounts for resonator contribution only and does not
include external LC component temperature effects.
fC = f O , T C = T O
0
G
C
1
Temperature Characteristics
Connection
1
0
-50
-50
-100
-100
-150
-150
(f-fo ) / fo (ppm)
Electrical Connections
-200
-80 -60 -40 -20
H
6
1
5
2
4
3
-200
0 +20 +40 +60 +80
T = TC - T O ( °C )
I
Characterization Test Circuit
Inductor LTEST is tuned to resonate with the static capacitance, CO, at FC.
D
J
6
1
From 50 
Network Analyzer
5
2
4
3
To 50 
Network Analyzer
K
L
N
K
N
Power Dissipation Test
O
N
M
M
50  Source
at F C
Case and Typical PCB Land Dimensions
Ref
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
Min
2.87
2.87
1.12
0.77
2.67
1.47
0.72
1.37
0.47
1.17
mm
Nom
3.00
3.00
1.25
0.90
2.80
1.60
0.85
1.50
0.60
1.30
3.20
1.70
1.05
0.81
0.38
Max
3.13
3.13
1.38
1.03
2.93
1.73
0.98
1.63
0.73
1.43
Min
0.113
0.113
0.044
0.030
0.105
0.058
0.028
0.054
0.019
0.046
P INCIDENT
Low-Loss
Matching
Network to
50 
P REFLECTED
Inches
Nom
0.118
0.118
0.049
0.035
0.110
0.063
0.033
0.059
0.024
0.051
0.126
0.067
0.041
0.032
0.015
Max
0.123
0.123
0.054
0.040
0.115
0.068
0.038
0.064
0.029
0.056
1
6
5
4
Typical Low-Power Transmitter Application
Modulation
Input
200k 
+9VDC
C1
47
L1
(Antenna)
1
6
2
3
5
4
C2
ROXXXXC
Bottom View
RF Bypass
470
Typical Local Oscillator Application
Output
200k 
C1
Equivalent RLC Model
+VDC
L1
0.05 pF*
Cp
Lm
3
Example Application Circuits
+VDC
Rm
2
1
Co = Cp + 0.05 pF
6
2
3
5
4
C2
*Case Parasitics
ROXXXXC
Bottom View
RF Bypass
Cm
©2010-2014 by Murata Electronics N.A., Inc.
RO3103E (R) 4/8/14
Page 2 of 2
www.murata.com
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement