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B39401-R2705-U310 [EPCOS]

2-PORT SAW RESONATOR, 403.55MHz;
B39401-R2705-U310
型号： B39401-R2705-U310
厂家： EPCOS    EPCOS
描述：

2-PORT SAW RESONATOR, 403.55MHz

晶体 谐振器
文件： 总4页 (文件大小：40K)
中文：  中文翻译
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SAW Components  
Data Sheet R 2705  
SAW Components  
Resonator  
R 2705  
403,55 MHz  
Data Sheet  
SMD Ceramic package QCC8C  
Features  
■ 2-port resonator  
■ nominal 180˚-phase at resonance  
■ Provides reliable, fundamental mode, quartz fre-  
quency stabilization i.e. in transmitters or local  
oscillators  
Terminals  
■ Ni, gold plated  
Dimensions in mm, approx. weight 0,1 g  
Pin configuration  
2
Input / Ouptput  
6
Output / Input  
7
3
4,8  
Ground (Input / Output)  
Ground (Output / Input)  
Ground (case)  
Type  
Ordering code  
Marking and Package  
Packing  
according to  
according to  
F61074-V8023-Z000  
R2705  
B39401-R2705-U310  
C61157-A7-A37  
Electrostatic Sensitive Device (ESD)  
Maximum ratings  
Operable temperature range TA  
Storage temperature range Tstg  
–45/+85  
–45/+85  
12  
˚C  
˚C  
V
DC voltage  
VDC  
Ps  
between any terminals  
Source power  
0
dBm  
2
May 09, 2001  
SAW Components  
Resonator  
R 2705  
403,55 MHz  
Data Sheet  
Characteristics  
Reference temperature:  
Terminating Source impedance:  
Terminating Load impedance:  
TA = 25 ˚C  
ZS = 50 Ω  
ZL = 50 Ω  
min.  
typ.  
max.  
fc  
403,43  
403,55  
403,67  
MHz  
Center frequency  
(center frequency between 3 dB points)  
Minimum insertion attenuation  
Phase at fc  
αmin  
ϕ
—
—
7,7  
150  
10  
—
—
—
dB  
˚ el.  
Loaded quality factor  
Unloaded quality factor  
QL  
QU  
5000  
7000  
6700  
11500  
—
—
±50  
ppm  
Ageing of fc  
Equivalent circuit elements  
Motional capacitance  
Motional inductance  
Motional resistance  
C1  
L1  
—
—
—
—
0,243  
640,1  
140  
—
—
—
—
fF  
µH  
Ω
R1  
C0  
Input / Output capacitance  
2,0  
pF  
TCf  
T0  
—
–0,032  
40  
—
ppm/K2  
Temperature coefficient of frequency 1)  
Turnover temperature  
30  
50  
˚C  
1) Temperature dependence of fc: fc(TA) = fc(T0)(1 + TCf(TA – T0)2)  
3
May 09, 2001  
SAW Components  
Resonator  
R 2705  
403,55 MHz  
Data Sheet  
Published by EPCOS AG  
Surface Acoustic Wave Components Division, SAW CE AE PD  
P.O. Box 80 17 09, D-81617 München  
EPCOS AG 2001. All Rights Reserved.  
As far as patents or other rights of third parties are concerned, liability is only assumed for compo-  
nents per se, not for applications, processes and circuits implemented within components or  
assemblies.  
The information describes the type of component and shall not be considered as assured  
characteristics.  
Terms of delivery and rights to change design reserved.  
For questions on technology, prices and delivery please contact the sales offices of EPCOS AG or  
the international representatives.  
Due to technical requirements components may contain dangerous substances. For information on  
the type in question please also contact one of our sales offices.  
4
May 09, 2001  

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