tfs380b.doc
version 4.0
09.04.2001
VI TELEFILTER
Filter specification
TFS 380B
1/5
VI TELEFILTER
Vectron International, Inc.
Potsdamer Strae 18
267 Lowell Road
D 14 513 TELTOW / Germany
Hudson, NH 03051 / USA
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail: tft@telefilter.com
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.
Measurement Condition
Ambient Temperature:
23
°C
Input Power Level:
0 dBm
Source impedance:
50
Load impedance:
50
Terminating impedances:
input:
810
|| -4.75 pF
output:
990
|| -4.75 pF
Characteristics
Remark:
Reference level for the relative attenuation arel is the minimum pass band attenuation amin. It is defined as the insertion loss ae. The nominal
frequency fN is fixed to 380,0 MHz. The center 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 given values for the insertion loss, the relative attenuation arel and the group delay ripple have to be reached at the frequencies given below
also 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.
D a t a
typ. Value
Limit
Insertion Loss
ae = amin
-
max.
20,5 dB
(Reference level)
Nominal Frequency
fN
-
380,0 MHz
1,5 dB - Bandwidth
BW
-min.
8,0 MHz
Relative Attenuation
arel
fN ± 5
MHz ... fN ±
5,8 MHz
-
min.
3
dB
fN ± 5,8
MHz ... fN ±
6,3 MHz
-
min.
10
dB
fN ± 6,3
MHz ... fN ±
6,6 MHz
-
min.
20
dB
fN ± 6,6
MHz ... fN ±
10
MHz
-
min.
30
dB
fN ± 10,0
MHz ... fN ± 100,0 MHz
-
min.
40
dB
Pass Band Ripple
fN ± 4,0
MHz
-
max.
1,5 dB
Group delay ripple
fN ± 4,0
MHz
-
max. 100
ns
Operating Temperature Range
- 0 °C ... + 70 °C
Generated:
Checked / approved: