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RO3156A-2

更新时间： 2024-11-25 03:36:15
品牌 Logo 应用领域
RFM 晶体谐振器
页数 文件大小 规格书
2页 58K
描述
868.95 MHz SAW Resonator

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RO3156A-2 数据手册

 浏览型号RO3156A-2的Datasheet PDF文件第2页 
RO3156A  
RO3156A-1  
RO3156A-2  
• Ideal for European 868.95 MHz Transmitters  
• Very Low Series Resistance  
• Quartz Stability  
• Surface-Mount Ceramic Case with 21 mm2 Footprint  
• Complies with Directive 2002/95/EC (RoHS)  
868.95 MHz  
SAW  
Resonator  
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-ETS 300 220 in Europe and under FTZ 17 TR 2100 in Germany.  
Absolute Maximum Ratings  
Rating  
Value  
+5  
Units  
dBm  
VDC  
°C  
CW RF Power Dissipation  
DC Voltage Between Terminals  
Case Temperature  
±30  
-40 to +85  
260  
Soldering Temperature (10 seconds / 5 cycles max.)  
°C  
SM5035-4  
Electrical Characteristics  
Characteristic  
Sym  
Notes  
Minimum  
868.750  
868.800  
868.850  
Typical  
Maximum  
869.150  
869.100  
869.050  
±200  
Units  
Frequency (+25 °C) Nominal Frequency  
Tolerance from 868.95 MHz  
Insertion Loss  
RO3156A  
f
RO3156A-1  
RO3156A-2  
MHz  
C
2,3,4,5  
RO3156A  
Δf  
RO3156A-1  
RO3156A-2  
±150  
kHz  
dB  
C
±100  
IL  
2,5,6  
5,6,7  
1.2  
6200  
850  
25  
2.0  
Q
Quality Factor  
Unloaded Q  
U
Q
T
50 Ω Loaded Q  
L
Temperature Stability  
Turnover Temperature  
10  
40  
°C  
kHz  
O
f
f
Turnover Frequency  
6,7,8  
O
C
2
Frequency Temperature Coefficient  
Absolute Value during the First Year  
FTC  
|fA|  
0.032  
<±10  
ppm/°C  
Frequency Aging  
1
5
ppm/yr  
MΩ  
Ω
DC Insulation Resistance between Any Two Terminals  
1.0  
R
RF Equivalent RLC Model  
Motional Resistance  
Motional Inductance  
Motional Capacitance  
Shunt Static Capacitance  
14.5  
18.0  
2.0  
M
L
5, 6, 7, 9  
µH  
M
C
fF  
M
C
5, 6, 9  
2, 7  
2.1  
pF  
O
L
Test Fixture Shunt Inductance  
15.8  
nH  
TEST  
Lid Symbolization (in addition to Lot and/or Date Codes)  
714 // YWWS  
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.  
Notes:  
1.  
2.  
Frequency aging is the change in f with time and is specified at +65°C or  
C
6.  
7.  
The design, manufacturing process, and specifications of this device are  
subject to change without notice.  
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.  
Derived mathematically from one or more of the following directly  
measured parameters: f , IL, 3 dB bandwidth, f versus T , and C .  
C
C
C
O
The center frequency, f , is measured at the minimum insertion loss point,  
8.  
Turnover temperature, T , is the temperature of maximum (or turnover)  
C
O
IL , with the resonator in the 50 Ω test system (VSWR ≤ 1.2:1). The  
frequency, f . The nominal frequency at any case temperature, T , may be  
MIN  
O
C
2
shunt inductance, L  
, is tuned for parallel resonance with C at f .  
TEST  
O C  
calculated from: f = f [1 - FTC (T -T ) ]. Typically oscillator T is  
O O C O  
Typically, f  
or f  
is approximately equal to the  
OSCILLATOR  
TRANSMITTER  
approximately equal to the specified resonator T .  
O
resonator f .  
C
9.  
This equivalent RLC model approximates resonator performance near the  
3.  
4.  
One or more of the following United States patents apply: 4,454,488 and  
4,616,197.  
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  
Typically, equipment utilizing this device requires emissions testing and  
government approval, which is the responsibility of the equipment  
manufacturer.  
measurement includes parasitic capacitance with "NC” pads unconnected.  
Case parasitic capacitance is approximately 0.05 pF. Transducer parallel  
capacitance can by calculated as: C ≈ C - 0.05 pF.  
5.  
Unless noted otherwise, case temperature T = +25°C±2°C.  
C
P
O
www.RFM.com  
E-mail: info@rfm.com  
Page 1 of 2  
©2008 by RF Monolithics, Inc.  
RO3156A - 3/27/08  
12

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