English
Language : 

TFS112H Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification
tfs112H.doc
VI TELEFILTER
Filter Specification
Version 1.3
14.02.2001
TFS 112H - 1/5
1. Measurement condition :
Ambient temperature TA:
Input power level:
Terminating impedances at fc:
Q-value of matching elements:
23 °C
0 dBm.
for input:
for output:
50...70
565 Ω  - 6,5 pF.
650 Ω  - 5,7 pF.
2. Characteristics :
Remark:
Reference level for the relative attenuation arel of the TFS 112H is the minimum of the passband attenuation amin. The minimum of the passband
attenuation amin is defined as the insertion loss ae. The reference frequency fc is the arithmetic mean value of the upper and lower
frequencies at the 30 dB filter attenuation level relative to the insertion loss ae.
Data
Insertion loss (Reference level) ae
Reference frequency fc ( BW(-30 dB) )
Bandwidth at ambient temperature:
3 dB bandwidth
10 dB bandwidth
20 dB bandwidth
30 dB bandwidth
40 dB bandwidth
Relative attenuation
arel
fc
......... fc ± 0,475 MHz
fc ± 0,475 MHz ... fc ± 0,815 MHz
fc ± 1,175 MHz ... fc ± 1,300 MHz
fc ± 1,300 MHz ... fc ± 1,475 MHz
fc ± 1,475 MHz ... fc ± 5,0 MHz
fc + 5,0 MHz ... fc + 7,5 MHz
fc + 7,5 MHz ... fc + 17,28 MHz
fc + 17,28 MHz ... fc + 20
MHz
fc - 20
MHz ... fc - 5
MHz
Average group delay in fc ....fc ± 800 kHz :
Group delay ripple in fc ....fc ± 800 kHz :
Frequency inversion temperature ( To )
Temperature coefficient ( Tc1f ) 1st order *)
Temperature coefficient ( Tc2f ) 2nd order **)
Operating temperature range
Storage temperature range
Input power level
Permissible DC voltage VDC
Permissible AC voltage Vpp
*)
∆fc(Hz) = Tc1f(ppm/K) x (T - To) x fTo (MHz)
** )
∆fc(Hz) = Tc2f(ppm/K) x (T - To)² x fTo (MHz)
fTo is reference frequency fc at frequency inversion temperature (To )
typ. value
13,5 dB
112,32 MHz
1,05 MHz
1,72 MHz
2,17 MHz
2,45 MHz
2,66 MHz
-
-
-
-
> 45 dB
26 dB
> 32 dB
> 40 dB
42...45 dB
1,35 µs
150
ns
20
°C
0
ppm/K
- 0,036 ppm/K²
-
-
-
tolerance / limit
max. 14 dB
112,320 ± 0,035 MHz
min.
min.
max.
max.
max.
0,95 MHz
1,63 MHz
2,35 MHz
2,60 MHz
2,95 MHz
max.
max.
min.
min.
min.
min.
min.
min.
min.
3 dB
10 dB
20 dB
30 dB
40 dB
22 dB
25 dB
35 dB
35 dB
max. 300
ns
max. ± 7,5 ppm/K
-
- 20 °C ... + 85 °C
- 25 °C ... + 90 °C
max.
10 dBm
12 V
10 V
Generated:
Dunzow W.
Checked/Approved:
VI TELEFILTER
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
e-mail: tft@telefilter.com
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: (603) 598-0070 Fax: (603) 598-0075
e-mail: vti@vtinh.com
VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is assumed as
a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.