B39871R2709U310 查看數據表（PDF） - EPCOS AG
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B39871R2709U310 Datasheet PDF : 4 Pages
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SAW Components
Resonator
Data Sheet
Characteristics
Reference temperature:
Terminating Source impedance:
Terminating Load impedance:
Center frequency
(center frequency between 3 dB points)
R 2709
868,30 MHz
TA = 25 ˚C
ZS = 50 Ω
ZL = 50 Ω
min.
fc 868,10
typ.
max.
868,30 868,50
MHz
Minimum insertion attenuation
Phase at fc
Loaded quality factor
Unloaded quality factor
Ageing of fc
Equivalent circuit elements
Motional capacitance
Motional inductance
Motional resistance
Input / Output capacitance
Temperature coefficient of frequency 1)
Turnover temperature
αmin
—
ϕ
—
QL 3000
QU 5500
—
7,0
130
3600
6600
—
9,0 dB
— ˚ el.
—
—
−10/+40 ppm
C1
— 0,279
— fF
L1
— 120,4
— µH
R1
—
100
—Ω
C0
—
1,9
— pF
TCf
—
–0,03
— ppm/K2
T0
15
—
35 ˚C
1) Temperature dependence of fc: fc(TA) = fc(T0)(1 + TCf(TA – T0)2)
3 May 09, 2001
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