TFR868A Datasheet, PDF (1/5 Pages) Vectron International, Inc – SAW Resonator Specification

Tfr868a.doc
VI TELEFILTER
version 1.1
SAW Resonator Specification
09.09.2002
TFR 868A 1/5
Measurement condition
Ambient temperature:
23 C
Input power level:
10 dBm
Terminating Impedances :
for input: 50 || 0 pF
for output: 50 || 0 pF
Characteristics
Remark:
The minimum of the pass band attenuation amin is defined as the insertion loss ae. The centre frequency fc is the frequency of the minimum of
the passband attenuation amin. The tolerance for the resonant frequency also includes a centre frequency shift due to the temperature coefficient
of frequency TCf in the operating temperature range and a production tolerance for the resonant frequency fR.
Data
Insertion loss
(Reference level)
ae = amin
typ. value
1,4 dB
tolerance / limit
max. 2,2 dB
Resonant frequency
fR
868,95 MHz
150 kHz
Parallel capacitance
C0
2,6 pF
-
Motional resistance
R1
17
-
Motional inductance
L1
24
µH
-
Motional capacitance
C1
1,4 fF
-
Unloaded quality factor
Qu
7580
-
Operating temperature range
Storage temperature range
Temperature coefficient *
TC
Frequency inversion temperature
To
Frequency aging **
IfAI
-
-
- 0,036 ppm/K²
25
°C
10
ppm/yr
- 10°C... + 70 C
- 30°C... + 85 C
Phase
-20 ..... + 20 °
**) Frequency aging is the change in fR with time. Typically aging is greatest first year after manufacture, decreasing in subsequent years.
*) f(Hz) = TCf(ppm/K²) x (T-T0)² x fTo(MHz)
generated:
checked / approved:
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