RO2134A Datasheet, PDF (1/2 Pages) RF Monolithics, Inc – 372.5 MHz SAW Resonator

®
• Very Low Series Resistance
• Quartz Stability
• Surface-Mount, Ceramic Case with 21 mm² Footprint
• Complies with Directive 2002/95/EC (RoHS)
The RO2134A is a one-port, surface-acoustic-wave (SAW) resonator in a surface-mount ceramic case. It
provides reliable, fundamental-mode stabilization of fixed-frequency transmitters operating at 372.5 MHz.
RO2134A
372.5 MHz
SAW
Resonator
Absolute Maximum Ratings
Rating
CW RF Power Dissipation
DC Voltage Between Terminals (Observe ESD Precautions)
Case Temperature
Soldering Temperature (10 seconds / 5 cycles MAX.)
Value
+10
±30
-40 to +85
+260
Units
dBm
VDC
°C
°C
SM-2 Case
Electrical Characteristics
Characteristic
Center Frequency at +25 °C Absolute Frequency
Tolerance from 372.5 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 (in Addition to to Lot and/or Date Code)
Sym
f_C
∆f_C
IL
Q_U
Q_L
T_O
f_O
FTC
|fA|
R_M
L_M
C_M
C_P
L_TEST
Notes
2, 3, 4, 5
2
5, 6, 7
6, 7, 8
1
5
5, 7, 9
5, 6, 9
2, 3
Minimum
Typical
372.5
0.9
16,100
1,700
10
25
f_C
0.032
≤10
1.0
11.525
79.074
2.31
2.34
76.39
131
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
Maximum
±100
2.2
Units
MHz
kHz
dB
40
°C
ppm/°C²
50
ppm/yr
MΩ
29
Ω
µH
fF
pF
nH
1. Lifetime (10 year) frequency aging.
9. This equivalent RLC model approximates resonator performance near the
2.
The center frequency, f_C, is measured at the minimum insertion loss point,
resonant frequency and is provided for reference only. The capacitance C_O is
IL_MIN, with the resonator in the 50 Ω test system (VSWR ≤ 1.2:1). The shunt
inductance, L_TEST, is tuned for parallel resonance with C_O at f_C.
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 gov-
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: C_P ≈ C_O - 0.05 pF.
ernment approval, which is the responsibility of the equipment manufacturer.
5.
Unless noted otherwise, case temperature T_C = +25°C±2°C.
6. The design, manufacturing process, and specifications of this device are sub-
ject to change without notice.
7. Derived mathematically from one or more of the following directly measured
parameters: f_C, IL, 3 dB bandwidth, f_C versus T_C, and C_O.
8.
Turnover temperature, T_O, is the temperature of maximum (or turnover) fre-
quency, f_O. The nominal frequency at any case temperature, T_C, may be cal-
culated from: f = f_O [1 - FTC (T_O -T_C)²].
RF Monolithics, Inc. Phone: [phone]
Fax: [phone]
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Fax: [phone]
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RO2134A-060205
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