TFS346D Datasheet, PDF (1/5 Pages) Vectron International, Inc – Vectron International Filter specification

Filename: tfs 346d.doc
VI TELEFILTER
Version 1.5
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
111 Ω || -8.9 pF
150 Ω || -9 pF
TFS 346D
23.07.2007
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 346D 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 1,5 dB
filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 346,0 MHz without any tolerance. The given values for both the
relative attenuation arel and the group delay ripple have to be achieved at the frequencies given below even if the centre frequency fc is shifted due to the
temperature coefficient of frequency TCf in the operating temperature range and due to a production tolerance for the centre frequency fc.
Data
typ. value
tolerance / limit
Insertion loss
(reference level)
Nominal frequency
ae
9,9 dB
f_N
-
max.
11,0 dB
346,0 MHz
Passband
Pass band ripple
Pass band ripple **
Pass band ripple ***
Pass band ripple ****
PB
36,6 MHz
p-p
0,2 dB
p-p
0,2 dB
p-p
0,04 dB
p-p
0,01 dB
f_N
± 11 MHz
max.
1,5 dB
max.
0,5 dB
max.
0,3 dB
max.
0,05 dB
Relative attenuation
f_N -
11
MHz ... f_N + 11
f_N - 345
f_N -
70
f_N + 29
f_N + 70
MHz ... f_N - 70
MHz ... f_N - 31
MHz ... f_N + 70
MHz ... f_N + 654
Group delay variation in PB
Group delay variation in PB **
arel
MHz
MHz
MHz
MHz
MHz
p-p
p-p
0,2 dB
50
dB
46
dB
50
dB
57
dB
12
ns
10
ns
max.
min.
min.
min.
min.
max.
max.
1,5 dB
45 dB
45 dB
45 dB
45 dB
100 ns
30 ns
IP1dB
-
min.
20 dBm
IIP3 *****
-
min.
36 dBm
Input power level
-
max.
17 dBm
Operating temperature range
OTR
-
-35 °C ... + 85 °C
Storage temperature range
-
-45 °C ... + 85 °C
Temperature coefficient of frequency
TCf ******
-89
ppm/K
-
*) 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.
**) within a contiguos 10 MHz span
***) within a contiguos 200 kHz span
****) within a contiguos 10 kHz span, limit to approve on first samples
*****) f_in1= 344 MHz; f_in2= 345 MHz; P_in=0 dBm f_measurement = 346 MHz;
******) ∆fc(Hz) = TC_f(ppm/K) x (T - T_o) x f_To (MHz).
Generated:
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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