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RO3104
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Ideal for 303.825 MHz Transmitters in USA and Others
Very Low Series Resistance
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?
Quartz Stability
Rugged, Hermetic, Low-Profile TO39 Case
Complies with Directive 2002/95/EC (RoHS)
Pb
303.825 MHz
SAW
The RO3104 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 303.825 MHz (often referred to as the 303.875 MHz channel). The RO3104 is designed for remote-control
and wireless security transmitters operating in the USA under FCC Part 15, in Japan, in Australia, and in
Korea.
Absolute Maximum Ratings
Resonator
Rating
CW RF Power Dissipation (See: Typical Test Circuit)
DC Voltage Between Any Two Pins (Observe ESD Precautions)
Case Temperature
Soldering Temperature (10 seconds / 5 cycles maximum)
Value
+0
±30
-40 to +85
260
Units
dBm
VDC
°C
°C
TO39-3 Case
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Center Frequency (+25 °C)
Insertion Loss
Quality Factor
Absolute Frequency
Tolerance from 303.825 MHz
Unloaded Q
50 ? Loaded Q
f C
? f C
IL
Q U
Q L
2, 3, 4, 5
2, 5, 6
5, 6, 7
303.750
1.3
13000
1700
303.900
±75
2.0
MHz
kHz
dB
Temperature Stability
Turnover Temperature
T O
10
25
40
°C
Turnover Frequency
f O
6, 7, 8
f c
Frequency Temperature Coefficient
FTC
0.037
ppm/°C 2
Frequency Aging
Absolute Value during the First Year
|f A |
1
≤ 10
ppm/yr
DC Insulation Resistance between Any Two Pins
5
1.0
M ?
RF Equivalent RLC Model
Motional Resistance
R M
15
?
Test Fixture Shunt Inductance
Motional Inductance
Motional Capacitance
Pin 1 to Pin 2 Static Capacitance
Transducer Static Capacitance
L M
C M
C O
C P
L TEST
5, 7, 9
5, 6, 9
5, 6, 7, 9
2, 7
103
2.6
2.3
2.0
122
μH
fF
pF
pF
nH
Lid Symbolization (in Addition to Lot and/or Date Codes)
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
RFM RO3104
1.
2.
3.
4.
5.
6.
Frequency aging is the change in f C with time and is specified at +65°C or
less. Aging may exceed the specification for prolonged temperatures
above +65°C. Typically, aging is greatest the first year after manufacture,
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 ? 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.
The design, manufacturing process, and specifications of this device are
7.
8.
9.
subject to change without notice.
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 .
Turnover temperature, T O , is the temperature of maximum (or turnover)
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 .
www.RFM.com E-mail: info@rfm.com
?2009 by RF Monolithics, Inc.
Page 1 of 2
RO3104 - 2/4/09
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相关代理商/技术参数
RO3104A 功能描述:谐振器 303.825 MHz +/-75kHz Single Port RoHS:否 制造商:Murata 频率:30 MHz 容差:25 PPM 系列:XRCGB 端接类型:SMD/SMT 工作温度范围:- 10 C to + 70 C 尺寸:1.6 mm W x 2 mm L x 0.65 mm H 封装:Reel
RO3104C 功能描述:谐振器 303.825 MHz +/-75kHz Single Port RoHS:否 制造商:Murata 频率:30 MHz 容差:25 PPM 系列:XRCGB 端接类型:SMD/SMT 工作温度范围:- 10 C to + 70 C 尺寸:1.6 mm W x 2 mm L x 0.65 mm H 封装:Reel
RO3104D 功能描述:谐振器 303.825 MHz +/-75kHz Single Port RoHS:否 制造商:Murata 频率:30 MHz 容差:25 PPM 系列:XRCGB 端接类型:SMD/SMT 工作温度范围:- 10 C to + 70 C 尺寸:1.6 mm W x 2 mm L x 0.65 mm H 封装:Reel
RO3104E 功能描述:谐振器 303.825 MHz +/-75kHz Single Port RoHS:否 制造商:Murata 频率:30 MHz 容差:25 PPM 系列:XRCGB 端接类型:SMD/SMT 工作温度范围:- 10 C to + 70 C 尺寸:1.6 mm W x 2 mm L x 0.65 mm H 封装:Reel
RO3112 功能描述:谐振器 433.42 MHz +/-75kHz Single Port RoHS:否 制造商:Murata 频率:30 MHz 容差:25 PPM 系列:XRCGB 端接类型:SMD/SMT 工作温度范围:- 10 C to + 70 C 尺寸:1.6 mm W x 2 mm L x 0.65 mm H 封装:Reel
RO3112A 功能描述:谐振器 433.42 MHz +/-75kHz Single Port RoHS:否 制造商:Murata 频率:30 MHz 容差:25 PPM 系列:XRCGB 端接类型:SMD/SMT 工作温度范围:- 10 C to + 70 C 尺寸:1.6 mm W x 2 mm L x 0.65 mm H 封装:Reel
RO3112C 功能描述:谐振器 433.42 MHz +/-75kHz Single Port RoHS:否 制造商:Murata 频率:30 MHz 容差:25 PPM 系列:XRCGB 端接类型:SMD/SMT 工作温度范围:- 10 C to + 70 C 尺寸:1.6 mm W x 2 mm L x 0.65 mm H 封装:Reel
RO3112D 功能描述:谐振器 433.42 MHz +/-75kHz Single Port RoHS:否 制造商:Murata 频率:30 MHz 容差:25 PPM 系列:XRCGB 端接类型:SMD/SMT 工作温度范围:- 10 C to + 70 C 尺寸:1.6 mm W x 2 mm L x 0.65 mm H 封装:Reel