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RO3075E
?
Ideal for 345 MHz Automotive-Keyless-Entry Transmitters
Pb
? Very Low Series Resistance
? Quartz Stability
? Complies with Directive 2002/95/EC (RoHS)
The RO3075E 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 345 MHz. The RO3075E is designed for wireless remote control and security transmitters
operating in the USA under FCC Part 15.
Absolute Maximum Ratings
345.0 MHz
SAW
Rating
Input Power Level
DC Voltage
Storage Temperature Range
Operating Temperature Range
Value
0
12
-40 to +125
-40 to +105
Units
dBm
VDC
°C
°C
Soldering Temperature (10 seconds / 5 cycles max.)
Electrical Characteristics
260
°C
SM3030-6 Case
3.0 X 3.0
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Frequency (+25 °C)
Insertion Loss
Absolute Frequency
Tolerance from 345.0 MHz
f C
Δ f C
IL
2, 3, 4, 5
2, 5, 6
344.900
1.4
345.100
±100
2.2
MHz
kHz
dB
Quality Factor
Unloaded Q
50W Loaded Q
Q U
Q L
27000
4200
Temperature Stability
Turnover Temperature
T O
10
25
35
°C
Turnover Frequency
f O
6, 7, 8
f C
Frequency Temperature Coefficient
FTC
0.032
ppm/°C 2
Frequency Aging
Absolute Value during the First Year
|f A |
1, 6
10
ppm/yr
DC Insulation Resistance between Any Two Terminals
5
1.0
M Ω
RF Equivalent RLC Model
Motional Resistance
R M
18
Ω
Test Fixture Shunt Inductance
Motional Inductance
Motional Capacitance
Shunt Static Capacitance
L M
C M
C O
L TEST
5, 7, 9
5, 6, 9
2, 7
240
0.9
4.3
50
μH
fF
pF
nH
Lid Symbolization
694 // YWWS
Standard Reel Quantity
Reel Size 7 Inch
Reel Size 13 Inch
10
500 Pieces / Reel
3000 Pieces / Reel
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
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 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 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
7.
8.
9.
10.
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
approximately equal to 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 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.
Tape and Reel Standard Per ANSI / EIA 481.
www.RFM.com E-mail: info@rfm.com
?2008 by RF Monolithics, Inc.
Page 1 of 2
- 3/26/08
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相关PDF资料
RO3075 SAW RESONATOR 345.0MHZ TO39-3
RO3101A-1 SAW RESONATOR 433.92MHZ SM5035-4
RO3101A SAW RESONATOR 433.92MHZ SMD
RO3101C SAW RESONATOR 433.92MHZ SM5050-8
RO3101D SAW RESONATOR 433.92MHZ SM3838-6
RO3101E-1 SAW RESONATOR 433.92MHZ
RO3101E SAW RESONATOR 433.92MHZ SMD
RO3101 SAW RESONATOR 433.92MHZ TO39-3
相关代理商/技术参数
RO3101 功能描述:谐振器 433.92 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
RO3101A 功能描述:谐振器 433.92 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
RO3101A-1 功能描述:谐振器 433.92 MHz +/-50kHz 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
RO3101A-11 功能描述:谐振器 433.92MHz BW 75KHz IL 1.5dB Typ. 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
RO3101A-21 制造商:RFM 功能描述:IC,RESON,433.92MHZ,SMD,2SM - Tape and Reel
RO3101C 功能描述:谐振器 433.92 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
RO3101D 功能描述:谐振器 433.92 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
RO3101E 功能描述:谐振器 433.92 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