TFS309 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

tfs309.doc
VI TELEFILTER
Filter Specification
version 1.5
TFS 309
13.07.2000
1/5
Measurement condition
Ambient temperature: 23
Input power level:
0
Terminating impedances
for input:
for output:
External coil:
°C
dBm
540 Ohm // -1,7 pF
540 Ohm // -1,7 pF
116 nH
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 309 is the insertion loss. The insertion loss ae is defined as the insertion loss at the
nominal frequency f_N . 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 f_N is fixed on 309,6 MHz without tolerance. The specified values have to be reached in
operating temperature range.
Data
Insertion loss
ae
(Reference level)
Nominal frequency
f_N
Centre frequency
f_C
1 dB bandwidth
BW
Relative attenuation
arel
f_N ± 1,8 MHz ... f_N ± 6 MHz
f_N ± 6 MHz ... f_N ± 100 MHz
VSWR
@ f_N
Group delay
GD
@ f_N
Input power
Operating temperature range
Temperature coefficient of frequency TC
Frequency inversion temperature
typ.value
2,75 dB
-
309,62 MHz
270
kHz
47
dB
28...65
dB
1,2:1
2,6 µs
-
ca. – 0,036 ppm/K²
+ 25 °C
tolerance/limit
2,1 ... 4,1 dB
309,600 MHz
-
-
min. 30
dB
min. 20
dB
min. 1,8 : 1
max. 4,6 µs
max. 10
dBm
- 5 °C ... + 80 °C
Generated:
Checked / approved:
VI TELEFILTER
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: [phone] Fax: [phone]
E-Mail: [e-mail]
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.