RO2193A Datasheet, PDF (1/2 Pages) RF Monolithics, Inc – 379.3 MHz SAW Resonator

®
RO2193A
• Ideal for 390 MHz Superhet Receiver LO
• Very Low Series Resistance
• Quartz Stability
• Rugged, Hermetic, Surface Mount SM-2 Package
• Complies with Directive 2002/95/EC (RoHS)
The RO2193A 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 local oscillators operating at
approximately 379.3 MHz. This SAW is designed for 390 MHz superhet receivers with 10.7 MHz IF. Applica-
tions include keyless-entry receivers operating in the USA under FCC Part 15, in Canada under DOC RSS-
210, and in Italy.
379.3 MHz
SAW
Resonator
Absolute Maximum Ratings
Rating
CW RF Power Dissipation
DC Voltage Between Any Two Pins (Observe ESD Precautions)
Case Temperature
Soldering Temperature (10 seconds / 5 cycles max.)
Value
+5
±30
-40 to +85
260
Electrical Characteristics
Characteristic
Center Frequency at +25 °C Absolute Frequency
Tolerance from 304.0 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
Pin 1 to Pin 2 Static Capacitance
Transducer Static Capacitance
Test Fixture Shunt Inductance
Lid Symbolization
Sym
f_C
∆f_C
IL
Q_U
Q_L
T_O
f_O
FTC
|fA|
R_M
L_M
C_M
C_O
C_P
L_TEST
Notes
2, 3, 4, 5
2, 5, 6
5, 6, 7
6, 7, 8
1
5
5, 7, 9
5, 6, 9
5, 6, 7, 9
2, 7
Units
dBm
VDC
°C
°C
Minimum
379.2
Typical
379.3
0.9
13,000
2,000
27
42
f_C-5
0.037
≤10
1.0
18
107
1.6
3.6
3.9
2.7
57
TBD
SM-2 Case
Maximum
379.4
±100
2.0
Units
MHz
kHz
dB
57
°C
kHz
ppm/°C²
ppm/yr
MΩ
25
Ω
µH
fF
4.2
pF
pF
nH
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1. Lifetime (10 year) frequency aging.
parameters: f_C, IL, 3 dB bandwidth, f_C versus T_C, and C_O.
2.
The center frequency, f_C, is measured at the minimum insertion loss point,
8.
Turnover temperature, T_O, is the temperature of maximum (or turnover) fre-
IL_MIN, with the resonator in the 50 Ω test system (VSWR ≤ 1.2:1). The shunt
quency, f_O. The nominal frequency at any case temperature, T_C, may be cal-
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
culated from: f = f_O [1 - FTC (T_O -T_C)²].
9. This equivalent RLC model approximates resonator performance near the
4,616,197.
4. Typically, equipment utilizing this device requires emissions testing and gov-
ernment approval, which is the responsibility of the equipment manufacturer.
5.
Unless noted otherwise, case temperature T_C = +25°C±2°C.
resonant frequency and is provided for reference only. The capacitance C_O 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 a floating case. Case parasitic capaci-
6. The design, manufacturing process, and specifications of this device are sub-
tance is approximately 0.25pF. Transducer parallel capacitance can be cal-
ject to change without notice.
7. Derived mathematically from one or more of the following directly measured
culated as: C_P ≈ C_O - 0.25pF.
RF Monolithics, Inc. Phone: [phone]
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Fax: [phone]
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RO2193A-070901
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