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SQ418

更新时间： 2024-11-16 06:13:35
品牌 Logo 应用领域
VANLONG 谐振器
页数 文件大小 规格书
2页 117K
描述
418.00 MHz Two-Port SAW Resonator

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SQ418 数据手册

 浏览型号SQ418的Datasheet PDF文件第2页 
418.00 MHz Two-Port SAW Resonator  
•
•
•
•
Ideal for 418.00 MHz Transmitters  
Nominal Phase Shift of 180° at Resonance  
Quartz Stability  
SQ418  
Rugged, Hermetic, Low Profile TO-39 Package  
Absolute Maximum Rating (Ta=25°C)  
Parameter  
CW RF Power Dissipation  
Rating  
10  
Unit  
dBm  
V
P
DC Voltage  
VDC  
TA  
Tstg  
±30  
Operating Temperature Range  
Storage Temperature Range  
-10 ~ +60  
-40 ~ +85  
°C  
°C  
Electronic Characteristics  
Parameter  
Sym  
fC  
Minimum  
Typical  
418.00  
-
Maximum  
Unit  
MHz  
KHz  
NS  
-
NS  
± 75  
8.0  
-
Frequency (25°C)  
Nominal Frequency  
Tolerance from 418.00 MHz  
∆fC  
IL  
Insertion Loss  
Quality Factor  
-
-
-
6.0  
dB  
Unloaded Q-Value  
QU  
QL  
13,000  
6,500  
-
-
-
50Ω Loaded Q-Value  
Turnover Temperature  
Turnover Frequency  
Temperature Stability  
TO  
fO  
25  
-
-
fc  
55  
-
°C  
KHz  
ppm/°C2  
Frequency Temperature Coefficient  
Absolute Value during the First Year  
FTC  
-
-0.032  
-
Frequency Aging  
|fA|  
-
-
-
-
10  
-
ppm/yr  
DC Insulation Resistance Between any Two Pins  
1.0  
MΩ  
RF Equivalent RLC Model  
Motional Resistance  
RM  
LM  
-
99.5  
493.9925  
0.29377  
1.75  
151.0  
Ω
µH  
fF  
Motional Inductance  
-
-
-
-
Motional Capacitance  
Pin 1 to Pin 2 Static Capacitance  
CM  
CO  
1.50  
2.00  
pF  
NS = Not Specified  
Notes:  
1.  
The center frequency, fC, is measured at the minimum IL point with  
the resonator in the 50Ω test system.  
6.  
7.  
8.  
Derived mathematically from one or more of the following directly  
measured parameters: fC, IL, 3 dB bandwidth, fC versus TC, and C0.  
2.  
3.  
Unless noted otherwise, case temperature TC = +25°C ± 2°C.  
The specifications of this device are based on the test circuit shown  
above and subject to change or obsolescence without notice.  
Frequency aging is the change in fC 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.  
Typically, equipment utilizing this device requires emissions testing  
and government approval, which is the responsibility of the  
equipment manufacturer.  
4.  
5.  
Turnover temperature, T0, is the temperature of maximum (or  
turnover) frequency, f0. The nominal frequency at any case  
temperature, TC, may be calculated from: f = f0 [1 - FTC (T0 - TC)2].  
9.  
Our liability is only assumed for the Surface Acoustic Wave (SAW)  
component(s) per se, not for applications, processes and circuits  
implemented within components or assemblies.  
This equivalent RLC model approximates resonator performance  
near the resonant frequency and is provided for reference only. The  
capacitance C0 is the measured static (nonmotional) capacitance  
between Pin1 and Pin2. The measurement includes case parasitic  
capacitance.  
10. For questions on technology, prices and delivery please contact our  
sales offices or e-mail to sales@vanlong.com.  
Phone: +86 10 6301 4184  
Fax: +86 10 6301 9167  
Email: sales@vanlong.com  
Web: http://www.vanlong.com  
SQ418  
© 2004 by Vanlong Technology Co., Ltd.  
12

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