RO3164 Datasheet, PDF (1/2 Pages) Murata Manufacturing Co., Ltd. – 868.35 MHz SAW Resonator

• Ideal for 868.350 MHz Transmitters
• Low Series Resistance
• Quartz Stability
• Rugged, Hermetic, Low-Profile TO39 Case
• Complies with Directive 2002/95/EC (RoHS)
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The RO3164 is a true one-port, surface-acoustic-wave (SAW) resonator in a low-profile TO39 case. It
provides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency transmitters operating
at 868.350 MHz. The RO3164 is designed specifically for wireless remote controls and security transmitters,
typically for automotive-keyless-entry, 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 Any Two Pins (Observe ESD Precautions)
Value
+0
±30
Units
dBm
VDC
Case Temperature
-40 to +85
°C
Soldering Temperature (10 seconds / 5 cycles max.)
260
°C
RO3164
868.350 MHz
SAW
Resonator
TO39-3 Case
Electrical Characteristics
Characteristic
Center Frequency (+25 °C) Absolute Frequency
Tolerance from 868.350 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 Pins
RF Equivalent RLC Model Motional Resistance
Motional Inductance
Motional Capacitance
Pin 1 to Pin 2 Static Capacitance
Test Fixture Shunt Inductance
Lid Symbolization (in Addition to Lot and/or Date Codes)
Sym
f_C
Δf_C
IL
Q_U
Q_L
T_O
f_O
FTC
|f_A|
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, 7, 9
5, 6, 9
2, 7
Minimum
868.150
Typical
Maximum
868.55
±200
1.0
2.0
5600
600
10
25
40
f_c
0.037
≤10
1.0
11
11
3
1.9
18
RFM / RO3164 / YYWWS ##
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
Units
MHz
kHz
dB
°C
kHz
ppm/°C²
ppm/yr
MΩ
Ω
µH
fF
pF
nH
1. Frequency aging is the change in f_C with time and is specified at +65°C or 7. Derived mathematically from one or more of the following directly
less. Aging may exceed the specification for prolonged temperatures
measured parameters: f_C, IL, 3 dB bandwidth, f_C versus T_C, and C_O.
above +65°C. Typically, aging is greatest the first year after manufacture, 8. Turnover temperature, T_O, is the temperature of maximum (or turnover)
2.
3.
4.
5.
decreasing significantly in subsequent years.
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 inductance, L_TEST, is tuned for parallel resonance with C_O at f_C.
Typically, f_OSCILLATOR or f_TRANSMITTER is less than the resonator f_C.
One or more of the following United States patents apply: 4,454,488 and
4,616,197 and others pending.
Typically, equipment designs utilizing this device require emissions testing
and government approval, which is the responsibility of the equipment
manufacturer.
Unless noted otherwise, case temperature T_C = +25°C±2°C.
9.
frequency, f_O. The nominal frequency at any case temperature, T_C, may be
calculated from: f = f_O [1 - FTC (T_O -T_C)²]. Typically, oscillator T_O is 20°C
less than the specified resonator T_O.
This equivalent RLC model approximates resonator performance near the
resonant frequency and is provided for reference only. The capacitance C_O
is the static (nonmotional) capacitance between pin1 and pin 2 measured
at low frequency (10 MHz) with a capacitance meter. The measurement
includes case parasitic capacitance with a floating case. For usual
grounded case applications (with ground connected to either pin 1 or pin 2
and to the case), add approximately 0.25 pF to C_O.
6. The design, manufacturing process, and specifications of this device are
subject to change without notice.
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©2008 by RF Monolithics, Inc.
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RO3164 - 3/27/08