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RO3075

更新时间： 2024-09-27 19:56:47
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 129K
描述
1-PORT SAW RESONATOR, 345 MHz, HERMETIC, CASE TO39-3

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中文翻译

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RO3075 技术参数

生命周期：Obsolete包装说明：HERMETIC, CASE TO39-3
Reach Compliance Code：unknown风险等级：5.84
晶体/谐振器类型：1-PORT频率容差 (MHz)：0.1
插入损耗：1.8 dB安装特点：THROUGH HOLE MOUNT
标称工作频率：345 MHz并联电容：4 pF
物理尺寸：D9.3XH3.18 (mm)/D0.366XH0.125 (inch)表面贴装：NO
Base Number Matches：1

RO3075 数据手册

 浏览型号RO3075的Datasheet PDF文件第2页 
RO3075  
• Ideal for 345.0 MHz Transmitters  
• Very Low Series Resistance  
• Quartz Stability  
345.0 MHz  
SAW  
Resonator  
• Rugged, Hermetic, TO39-3 Package  
The RO3075 is a true one-port, surface-acoustic-wave (SAW) resonator in TO39-3 case. It provides reliable,  
fundamental-mode, quartz frequency stabilization of fixed-frequency transmitters operating at 345.0 MHz.  
Absolute Maximum Ratings  
Rating  
Value  
+5  
Units  
dBm  
VDC  
°C  
CW RF Power Dissipation  
DC Voltage Between Any Two Pins (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  
Center Frequency at +25 °C  
Absolute Frequency  
f
344.930  
345.070  
MHz  
kHz  
dB  
C
2, 3, 4, 5  
Tolerance from 345.0 MHz  
Δf  
±70  
0.9  
±100  
1.8  
C
Insertion Loss  
Quality Factor  
IL  
2, 5, 6  
5, 6, 7  
Unloaded Q  
Q
7900  
750  
25  
U
50 Ω Loaded Q  
Q
L
Temperature Stability  
Turnover Temperature  
Turnover Frequency  
T
f
10  
40  
°C  
O
f -5  
6, 7, 8  
kHz  
O
C
2
Frequency Temperature Coefficient  
Absolute Value during the First Year  
FTC  
|fA|  
0.037  
ppm/°C  
Frequency Aging  
≤10  
ppm/yr  
MΩ  
Ω
1
5
DC Insulation Resistance between Any Two Terminals  
1.0  
RF Equivalent RLC Model  
Motional Resistance  
R
10.5  
38  
M
Motional Inductance  
L
µH  
fF  
5, 7, 9  
M
Motional Capacitance  
C
5.6  
M
Pin 1 to Pin 2 Static Capacitance  
Transducer Static Capacitance  
C
5, 6, 9  
5, 6, 7, 9  
2, 7  
4.2  
pF  
O
C
4.0  
pF  
P
Test Fixture Shunt Inductance  
Lid Symbolization  
L
50.7  
nH  
TEST  
RFM / 3075  
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.  
Notes:  
1. Lifetime (10 year) frequency aging.  
7. Derived mathematically from one or more of the following directly  
measured parameters: f , IL, 3 dB bandwidth, f versus T , and C .  
2. The center frequency, f , is measured at the minimum insertion loss  
C
C
C
C
O
point, IL , with the resonator in the 50 Ω test system (VSWR ≤  
8. Turnover temperature, T , is the temperature of maximum (or  
MIN  
O
1.2:1). The shunt inductance, L  
, is tuned for parallel resonance  
turnover) frequency, f . The nominal frequency at any case  
O
TEST  
2
with C at f .  
O
C
temperature, T , may be calculated from: f = f [1 - FTC (T -T ) ].  
C O O C  
3. One or more of the following United States patents apply: 4,454,488  
9. This equivalent RLC model approximates resonator performance near  
the resonant frequency and is provided for reference only. The  
and 4,616,197.  
4. Typically, equipment utilizing this device requires emissions testing  
and government approval, which is the responsibility of the equipment  
manufacturer.  
capacitance C is the static (nonmotional) capacitance between the  
O
two terminals measured at low frequency (10 MHz) with a capacitance  
meter. The measurement includes parasitic capacitance with a floating  
case. Case parasitic capacitance is approximately 0.25pF.  
5. Unless noted otherwise, case temperature T = +25°C±2°C.  
6. The design, manufacturing process, and specifications of this device  
are subject to change without notice.  
C
Transducer parallel capacitance can be calculated as: C ≈ C  
-
P
O
0.25pF.  
www.RFM.com  
E-mail: info@rfm.com  
Page 1 of 2  
©2008 by RF Monolithics, Inc.  
RO3075 - 3/26/08  
12

中文翻译

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