RO3156D Datasheet, PDF (1/2 Pages) Murata Manufacturing Co., Ltd. – 868.95 MHz SAW Resonator

• Ideal for 868.95 MHz FCC Part 15 Transmitters
• Very Low Series Resistance
• Quartz Stability
• Complies with Directive 2002/95/EC (RoHS)
Pb
The RO3156D is a true 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 868.95 MHz.
This SAW is designed specifically for remote-control and data-link transmitters operating in the under ETSI
EN 300 220 regulations.
Absolute Maximum Ratings
Rating
Value
Units
Input Power Level
10
dBm
DC Voltage
12
VDC
Storage Temperature
-40 to +85
°C
Soldering Temperature, 10 seconds / 5 cycles maximum
260
°C
RO3156D
RO3156D-1
RO3156D-2
868.95 MHz
SAW
Resonator
Electrical Characteristics
SM3838-6 Case
3.8 X 3.8
Characteristic
Sym Notes Minimum Typical Maximum Units
Frequency, +25 °C
RO3156D
868.750
869.150
Tolerance from 916.5 MH
RO3156D-1
RO3156D-2
RO3156D
RO3156D-1
RO3156D-2
f_C
868.800
2, 3, 4, 5
868.850
∆f_C
869.100
869.050
±200
±150
±100
MHz
kHz
Insertion Loss
IL
2, 5, 6
1.20
2.5
dB
Quality Factor
Temperature Stability
Frequency Aging
Unloaded Q
50 Ω Loaded Q
Q_U
5, 6, 7
Q_L
Turnover Temperature
T_O
10
Turnover Frequency
f_O
6, 7, 8
Frequency Temperature Coefficient FTC
Absolute Value during the First Year |fA|
1
6300
850
25
fc
0.032
10
40
°C
MHz
ppm/°C²
ppm
DC Insulation Resistance between Any Two Terminals
5
1.0
MΩ
RF Equivalent RLC Model Motional Resistance
Motional Inductance
Motional Capacitance
Transducer Static Capacitance
Test Fixture Shunt Inductance
Lid Symbolization
R_M
15.7
Ω
L_M
5, 6, 7, 9
18.1
µH
C_M
1.85
fF
C_O
5, 6, 9
2.2
pF
L_TEST
2, 7
15.2
nH
RO3156D: 715, RO3156D-1: 924, RO3156D-2: 925 //YWWS
Standard Reel Quantity
Reel Size 7 Inch
Reel Size 13 Inch
500 Pieces / Reel
10
3000 Pieces / Reel
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)
2.
3.
4.
5.
6.
quent 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 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
government 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
to change without notice.
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
approximately equal to the specified resonator T_O.
9. 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 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.
10. Tape and Reel Standard Per ANSI/EIA 481.
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©2009 by RF Monolithics, Inc.
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RO3156D - 7/30/09