English
Language : 

TFS70AH Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification
Filename: tfs 70ah.doc
VI TELEFILTER
Version 1.3
Filter specification
TFS 70AH
29.05.2006
1/5
Measurement condition
Ambient temperature TA:
Input power level:
Terminating impedances :
Input:
Output:
25 °C
0 dBm
50 Ω
50 Ω
Characteristics
Remark:
The reference level for the relative attenuation arel of the 70AH is the insertion loss. The attenuation at the nominal frequency is defined as the insertion
loss ae. The nominal frequency fN is fixed at 70 MHz without any tolerance or limit. The values of relative attenuation arel are guaranteed for the whole
operating temperature range. The frequency shift of the filter in the operating temperature range is included in the production tolerance scheme.
Data
typ. value
tolerance / limit
Insertion loss
Insertion loss variation within +25°...+65°C
Nominal frequency at ambient temperature
Passband
Amplitude variation within PB2
Deviation from linear phase within PB2
Relative attenuation2
fn - 60 MHz ...
fn + 3 MHz ...
fn +35 MHz ...
Phase match2,3
fn - 3 MHz
fn +35 MHz
fn +140 MHz
Gain match2,3
Change of phase match over temperature2,4
Change of gain match over temperature2,4
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
VSWR within PB
Input
Output
ae
fN
PB
arel
OTR
TCf1
16
dB
0,4 dB
± 0,6 dB
± 6,5 deg
95
95
90
± 0,25
± 0,15
0,05
0,02
-
-
-18
dB
dB
dB
deg
dB
°/°C
dB/°C
ppm/K
1,5:1
1,5:1
max.
max.
fN
max.
18,5
1
70
±2
±1
± 6,5
dB
dB
MHz
MHz
dB
deg
min.
90 dB
min.
90 dB
min.
60 dB
max.
±5
deg
max.
±1
dB
max.
0,25 °/°C
max.
0,1 dB/°C
0 °C ... + 65°C
- 55 °C ... + 85°C
-
max.
2:1
max.
2:1
1 ∆fc(Hz) = Tcf(ppm/K) x (T - TA) x fN (MHz)
2 For a cascade of TFS 70 AG and TFS 70 AH
3 Interchannel Performance after removal of Bias Interchannel Performance is defined as the greatest phase or gain difference between cascaded pairs
over the specified passband. An offset (bias) may be removed before each measurement
4 Phase and gain matching over temperature measures the change in the difference between two cascaded pairs as the temperature is varied from
+40°C to +50°C
generated:
checked / approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
E-Mail: tft@telefilter.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.