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RO3118

更新时间： 2024-09-28 19:43:51
品牌 Logo 应用领域
村田 - MURATA 晶体谐振器
页数 文件大小 规格书
2页 132K
描述
1-PORT SAW RESONATOR, 318 MHz, ROHS COMPLIANT, HERMETIC, CASE TO39-3

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RO3118 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：ROHS COMPLIANT, HERMETIC, CASE TO39-3Reach Compliance Code：compliant
Factory Lead Time：20 weeks风险等级：8.63
晶体/谐振器类型：1-PORT频率容差 (MHz)：0.075
插入损耗：2 dB安装特点：THROUGH HOLE MOUNT
标称工作频率：318 MHz并联电容：3 pF
物理尺寸：D9.4XH3.18 (mm)/D0.37XH0.125 (inch)表面贴装：NO
Base Number Matches：1

RO3118 数据手册

 浏览型号RO3118的Datasheet PDF文件第2页 
RO3118  
• Designed for 318 MHz Transmitter Applications  
• Low Series Resistance  
• Quartz Stability  
• Rugged, Hermetic, Low-Profile TO39 Case  
• Complies with Directive 2002/95/EC (RoHS)  
318.00 MHz  
SAW  
Pb  
Resonator  
The RO3118 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 or near  
318 MHz.  
Absolute Maximum Ratings  
Rating  
Value  
+0  
Units  
dBm  
VDC  
°C  
CW RF Power Dissipation  
DC Voltage Between Terminals (Observe ESD Precautions)  
Case Temperature  
±30  
-40 to +85  
260  
Soldering Temperature (10 seconds / 5 cycles max.  
°C  
TO39-3 Case  
Electrical Characteristics  
Characteristic  
Sym  
Notes  
Minimum  
Typical  
Maximum  
Units  
f
Frequency (+25 °C)  
Nominal Frequency  
317.925  
318.075  
MHz  
kHz  
dB  
C
2, 3, 4, 5  
Δf  
Tolerance from 318.000 MHz  
±75  
2.0  
C
Insertion Loss  
Quality Factor  
IL  
2, 5, 6  
5, 6, 7  
1.5  
10700  
1400  
25  
Q
Unloaded Q  
U
Q
T
50 Ω Loaded Q  
L
Temperature Stability  
Turnover Temperature  
Turnover Frequency  
10  
40  
°C  
O
f
f +4.2  
6, 7, 8  
kHz  
O
C
2
Frequency Temperature Coefficient  
Absolute Value during the First Year  
FTC  
|fA|  
0.037  
10  
ppm/°C  
Frequency Aging  
1, 6  
5
ppm/yr  
MΩ  
Ω
DC Insulation Resistance between Any Two Pins  
1.0  
R
RF Equivalent RLC Model  
Motional Resistance  
15  
80  
M
L
Motional Inductance  
5, 6, 7, 9  
µH  
M
C
Motional Capacitance  
3.1  
2.6  
3.0  
96  
fF  
M
C
Pin 1 to Pin 2 Static Capacitance  
Transducer Static Capacitance  
5, 6, 9  
5, 6, 7, 9  
2, 7  
pF  
pF  
nH  
O
C
P
LTEST  
Test Fixture Shunt Inductance  
Lid Symbolization (in addition to Lot and/or Date Codes)  
RFM // RO3118  
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 significantly 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 20°C  
O O C O  
Typically, f  
or f  
is less than the resonator f .  
TRANSMITTER C  
OSCILLATOR  
less than the specified resonator T .  
O
3.  
4.  
One or more of the following United States patents apply: 4,454,488 and  
4,616,197 and others pending.  
9.  
This equivalent RLC model approximates resonator performance near the  
resonant frequency and is provided for reference only. The capacitance C  
O
Typically, equipment designs utilizing this device require emissions testing  
and government approval, which is the responsibility of the equipment  
manufacturer.  
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  
5.  
Unless noted otherwise, case temperature T = +25°C±2°C.  
C
and to the case), add approximately 0.25 pF to C .  
O
www.RFM.com  
E-mail: info@rfm.com  
Page 1 of 2  
©2008 by RF Monolithics, Inc.  
RO3118 - 3/27/08  
12

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