RO2073A-5 Datasheet, PDF (1/2 Pages) RF Monolithics, Inc – 315.05 MHz SAW Resonator

®
• Ideal for European 315.05 MHz Transmitters
• Surface-Mount Ceramic Case with 21 mm² Footprint
• Very Low Series Resistance
• Quartz Stability
• Complies with Directive 2002/95/EC (RoHS) Pb
The RO2073A-5 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 315.05 MHz. This SAW is designed specifically for remote-control and wireless security trans-
mitters operating in the USA under FCC Part 15, in Canada under DoC RSS-210, and in Italy.
Absolute Maximum Ratings
Rating
CW RF Power Dissipation (See: Typical Test Circuit)
DC voltage Between Terminals
Case Temperature
Soldering Temperature (10 seconds / 5 cycles max.)
Value
+0
±30
-40 to +85
+260
Units
dBm
VDC
°C
°C
RO2073A-5
315.05 MHz
SAW
Resonator
SM-2 Case
Electrical Characteristics
Characteristic
Center Frequency at +25 °C Absolute Frequency
Tolerance from 315.05 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
Shunt Static Capacitance
Test Fixture Shunt Inductance
Lid Symbolization (in addition to Lot and/or Date Codes)
Sym
f_C
∆f_C
IL
Q_U
Q_L
T_O
f_O
FTC
|fA|
R_M
L_M
C_M
C_O
L_TEST
Notes
2,3,4,5
2,5,6
5,6,7
6,7,8
1
5
5, 6, 7, 9
5, 6, 7,9
2, 7
Minimum
314.975
10
1.0
Typical
1.3
15,300
2,100
25
f_C
0.032
≤10
16
2.0
2.3
110
151
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
Maximum
315.125
±75
2.2
Units
MHz
kHz
dB
40
°C
29
127.430
2.00267
2.6
ppm/°C²
ppm/yr
MΩ
Ω
µH
fF
pF
nH
1. Lifetime (10 year) frequency aging.
quency, f_O. The nominal frequency at any case temperature, TC, may be cal-
2.
The center frequency, f_C, is measured at the minimum insertion loss point,
culated from: f = f_O [1 - FTC (T_O -T_C)²].
IL_MIN, with the resonator in the 50 Ω test system (VSWR ≤ 1.2:1). The shunt
9.
This equivalent RLC model approximates resonator performance near the
inductance, L_TEST, is tuned for parallel resonance with C_O at f_C.
resonant frequency and is provided for reference only. The capacitance C_O is
3. One or more of the following United States patents apply: 4,454,488 and
the static (nonmotional) capacitance between the two terminals measured at
4,616,197.
low frequency (10 MHz) with a capacitance meter. The measurement
4. Typically, equipment utilizing this device requires emissions testing and gov-
includes parasitic capacitance with “NC” pads unconnected. Case parasitic
ernment approval, which is the responsibility of the equipment manufacturer.
capacitance is approximately 0.05pF. Transducer parallel capacitance can be
5.
Unless noted otherwise, case temperature T_C = +25°C±2°C for all specifica-
calculated as: C_P ≈ C_O - 0.05 pF.
tions.
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-
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RO2073A-5-120805
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