tfs400c.doc
version 3.2
13.06.2000
_____________________________________________________________________________________________________
VI TELEFILTER
SAW Filter Specification
TFS 400 C
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 4784-52 / 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
Terminating impedances
for input:
500 // -1 pF
for output: 500 // -1 pF
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 400 C 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 3
dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed on 400 MHz without tolerance. The given values for the
relative attenuation arel and for the group delay ripple have to be reached at the frequencies given below also if the centre frequency fo 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
tolerance/limit
Insertion loss
ae = amin
3,7
dB
max.
6,5
dB
(Reference level)
Nominal frequency
fN
-
400,000 MHz
Centre frequency
fc
400,008 MHz
Guaranteed 1,5 dB signal band width
BW
-
min.
160
kHz
Relative attenuation
arel
fN ± 80 kHz
0.8
dB
max.
1,5
dB
fN ± 200 kHz ... fN ± 400 kHz
8
dB
min.
2
dB
fN ± 400 kHz ... fN ± 600 kHz
30
dB
min.
25
dB
fN ± 600 kHz ... fN ±1 MHz
52
dB
min.
40
dB
fN ±
1 MHz ... fN ±3 MHz
54
dB
min.
45
dB
fN ±3 MHz
61
dB
min.
55
dB
Group delay ripple
GD
fN ± 70 kHz
0,7
s
max.
2
s
Operating temperature range
- 10
°C ... + 55 °C
Temperature coefficient of frequency
TC
ca. - 0.036
ppm/K
Frequency inversion temperature
+ 20
°C
Generated:
Checked / approved: