TFS1220B Datasheet, PDF (1/6 Pages) List of Unclassifed Manufacturers – TELEFILTER

TFS1220B.doc
VI TELEFILTER
version 1.3
Filter Specification
TFS 1220B
18.08.2003
1/6
1.
Measurement condition
Ambient temperature:
23
°C
Input power level:
0
dBm
Terminating impedances*
for input: 200 Ω
for input: 200 Ω
2.
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 1220B is the minimum of the pass band attenuation amin. The minimum of the pass
band attenuation amin is defined as the insertion loss ae. The centre frequency fc is the arithmetic mean value of the upper and lower frequencies
at the 3 dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 1220,0 MHz without tolerance. The
temperature coefficient of frequency Tcf is valid both for the frequency fc and the frequency response of the filter in the operating temperature
rang.
Data
typ. value
tolerance/limit
Insertion loss
(Reference level)
ae = amin
3,50 dB
max.
5,8
dB
Nominal frequency
fN
Centre frequency
fc
1,5 dB Bandwidth
BW
-
1220,0
19,0
MHz
MHz
max. 1220,0
MHz
1220,0 ±2,0 MHz
min. 8,0
MHz
Pass band ripple
1,0 dB
max. 1,5
dB
Relative attenuation
arel
f_C .... f_C ± 4,0 MHz
-
max. 1,5
dB
f_C - 36,0
MHz
f_C - 44,0
MHz
f_C - 72,0
MHz
f_C - 88,0
MHz
f_C - 68,0 MHz .. . f_C - 76,0 MHz
f_C - 76,0 MHz .... f_C - 85,0 MHz
f_C - 85,0 MHz .... f_C - 91,0 MHz
f_C - 91,0 MHz .... f_C - 720,0MHz
f_C + 70,0 MHz .... f_C + 780,0
dB
Group delay ripple GD**
f_C – 4,0 MHz ... f_C + 4,0 MHz
MHz
Temperature coefficient of frequency ( Tc_f )
Operating temperature range
Storage temperature range
58
dB
54
dB
55
dB
54
dB
55
dB
57
dB
57
dB
58
dB
56
dB
15
ns
-32 ppm/K
min. 40,2 dB
min. 44,2 dB
min. 42,0 dB
min. 44,2 dB
min. 40,2 dB
min. 44,2 dB
min. 44,2 dB
min. 44,2 dB
min. 44,2
-
-
- 40 °C ... + 85 °C
- 30 °C ... + 80 °C
*) The terminating impedances depend on parasitics and q-values of matching elements and the board used, and are to be understood as
reference values only. Should there be additional questions, do not hesitate to ask for an application note or contact our design team.
**) Aperture 500 KHz
Generated:
Checked / approved:
TELEFILTER GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.