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| 型号： | RO3156A |
| 厂商： | RFM |
| 文件页数： | 1/2页 |
| 文件大小： | 0K |
| 描述： | SAW RESONATOR 868.95MHZ SM5035-4 |
| 标准包装： | 500 |
| 系列： | RO |
| 频率： | 868.95MHz |
| 类型： | SAW |
| 特点： | 内置电容 |
| 频率稳定性： | 0.032ppm |
| 频率公差： | ±200kHz |
| 阻抗： | 1 兆欧 |
| 电容： | 2.1pF |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 4-SMD |
| 尺寸/尺寸： | 0.197" L x 0.138" W（5.00mm x 3.50mm） |
| 高度： | 0.063"（1.60mm） |
| 包装： | 带卷 (TR) |
RO3156A
RO3156A-1
?
?
?
?
?
Ideal for European 868.95 MHz Transmitters
Very Low Series Resistance
Quartz Stability
Surface-mount Ceramic Case
Complies with Directive 2002/95/EC (RoHS)
RO3156A-2
868.95 MHz
The RO3156A 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 868.95 MHz. This SAW is designed specifically for remote-control and wireless security
transmitters operating under ETSI EN 300 220 in Europe.
Absolute Maximum Ratings
SAW
Resonator
Rating
CW RF Power Dissipation
DC Voltage Between Terminals
Case Temperature
Soldering Temperature, 10 seconds / 5 cycles maximum
Value
+5
±30
-40 to +85
260
Units
dBm
VDC
°C
°C
SM5035-4
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Frequency, +25 °C
RO3156A
868.750
869.150
RO3156A-1
f C
868.800
869.100
MHz
Tolerance from 868.95 MHz
RO3156A-2
RO3156A
RO3156A-1
? f C
2,3,4,5
868.850
869.050
±200
±150
kHz
RO3156A-2
±100
Insertion Loss
Quality Factor
Unloaded Q
IL
Q U
2,5,6
5,6,7
1.2
6200
2.0
dB
50 ? Loaded Q
Q L
850
Temperature Stability
Turnover Temperature
Turnover Frequency
T O
f O
6,7,8
10
25
f C
40
°C
kHz
Frequency Temperature Coefficient
FTC
0.032
ppm/°C 2
Frequency Aging
Absolute Value during the First Year
|fA|
1
<±10
ppm/yr
DC Insulation Resistance between Any Two Terminals
5
1.0
M ?
RF Equivalent RLC Model
Motional Resistance
R M
14.5
?
Test Fixture Shunt Inductance
Motional Inductance
Motional Capacitance
Shunt Static Capacitance
L M
C M
C O
L TEST
5, 6, 7, 9
5, 6, 9
2, 7
18.0
2.0
2.1
15.8
μH
fF
pF
nH
Lid Symbolization
RO3156A: 714, RO3156A-1: 923, RO3156A-2 828, //YWWS
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
2.
3.
4.
5.
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 subse-
quent 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 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 ± 2 °C.
6.
7.
8.
9.
The design, manufacturing process, and specifications of this device are 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.
www.RFM.com E-mail: info@rfm.com
? 2009-2011 by RF Monolithics, Inc.
Page 1 of 2
RO3156A - 7/5/11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| RO3156A-1 | 功能描述:谐振器 868.95 MHz +/-150kHz 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 |
| RO3156A-2 | 功能描述:谐振器 868.95 MHz +/-100kHz 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 |
| RO3156D | 功能描述:谐振器 868.95 MHz +/-200kHz 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 |
| RO3156D-1 | 功能描述:谐振器 868.95 MHz +/-150kHz 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 |
| RO3156D-2 | 功能描述:谐振器 868.95 MHz +/-100kHz 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 |
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