RO3120C Datasheet, PDF (1/2 Pages) Murata Manufacturing Co., Ltd. – 403.55 MHz SAW Resonator

• Ideal for 403.55 MHz Transmitters
• Very Low Series Resistance
• Quartz Stability
• Complies with Directive 2002/95/EC (RoHS) Pb
The RO3120C 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 403.55 MHz.
RO3120C
403.55 MHz
SAW
Resonator
Absolute Maximum Ratings
Rating
Input Power Level
DC Voltage
Storage Temperature
Soldering Temperature, 10 seconds / 5 cycles maximum
Electrical Characteristics
Characteristic
Center Frequency (+25 °C) Absolute Frequency
Tolerance from 433.420 MHz
Quality Factor
Unloaded Q
50 ohm Loaded Q
Insertion Loss
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
Shunt Static Capacitance
Lid Symbolization (in addition to Lot and/or Date Codes)
Standard Reel Quantity
Reel Size 7 Inch
Reel Size 13 Inch
Value
0
12
-40 to +85
260
Sym
f_C
∆f_C
Q_U
Q_L
IL
T_O
f_O
FTC
|f_A|
R_M
L_M
C_M
C_O
Notes
2,3,4,5
2,5,6
6,7,8
1
5
5, 7, 9
5, 6, 9
Units
dBm
VDC
°C
°C
SM5050-8 Case
5 X 5 mm
Minimum
403.475
Typical
14400
1000
1.0
10
25
f_C
0.032
≤10
1.0
12.4
70.6
2.2
3.7
811 // YWWS
500 Pieces/Reel
3000 Pieces/Reel
Maximum
403.625
±75
Units
MHz
kHz
2.0
dB
40
°C
ppm/°C²
ppm/yr
MΩ
Ω
µH
fF
pF
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1. Frequency aging is the change in f_C with time and is specified at +65°C or less. 7. Derived mathematically from one or more of the following directly measured
Aging may exceed the specification for prolonged temperatures above +65°C.
parameters: f_C, IL, 3 dB bandwidth, f_C versus T_C, and C_O.
Typically, aging is greatest the first year after manufacture, decreasing in subse- 8. Turnover temperature, T_O, is the temperature of maximum (or turnover) fre-
quent years.
quency, f_O. The nominal frequency at any case temperature, T_C, may be calcu-
2.
3.
4.
5.
6.
The center frequency, f_C, is measured at the minimum insertion loss point, IL_MIN,
with the resonator in the 50 Ω test system (VSWR ≤ 1.2:1). The shunt induc-
tance, L_TEST, is tuned for parallel resonance with C_O at f_C. Typically, f_OSCILLA-
TOR ^{or f}TRANSMITTER ^{is approximately equal to the resonator f}C^.
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 govern-
ment approval, which is the responsibility of the equipment manufacturer.
Unless noted otherwise, case temperature T_C = +25°C±2°C.
The design, manufacturing process, and specifications of this device are subject
9.
lated from: f = f_O [1 - FTC (T_O -T_C)²]. Typically oscillator T_O is approximately
equal to the specified resonator T_O.
This equivalent RLC model approximates resonator performance near the reso-
nant frequency and is provided for reference only. The capacitance C_O is the
static (nonmotional) capacitance between the two terminals measured at low fre-
quency (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:
C_P ≈ C_O - 0.05 pF.
to change without notice.
www.RFM.com E-mail: [e-mail]
©2008-2011 by RF Monolithics, Inc.
Page 1 of 2
RO2207C 03/30/11