
file: tfs111b.doc
version 1.2 28.07.2000
VI TELEFILTER
Measurement condition
Ambient temperature:
Input power level:
Terminating impedances
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 111B 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 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.
D a t a
Development specification TFS 111B 1/5
VI TELEFILTER
Potsdamer Strae 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-52 / 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.
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail: vti@vtinh.com
23°C
10dBm
for input: 3,2 k
||- 5,6pF
for output:
3,1 k
|| -6.2pF
typ. value
tolerance / limit
Insertion loss
(reference level)
ae = amin
11
dB
Centre frequency
fc (30 dB-BW)
111
MHz
± 60
kHz
Relative attenuation
fc -
500
fc
±
1
fc
±
2
fc
±
3
**)
arel
kHz ... fc + 500
kHz
max.
2
dB
MHz ... fc
±
MHz ... fc
±
MHz ... fc
±
10
2
3
MHz
MHz
MHz
min. 20
min. 30
min.
dB
dB
dB
40
Group delay
Ripple fc ± 500 kHz
GD
max 500
ns
Temperature coefficient
TC 2nd order *
)
- 0,032 ppm/K2
-
Frequency inversion temperature
To
t.b.d.
Operating temperature range
Storage temperature range
- 10 °C ... + 60 °C
- 40 °C ... + 85 °C
Input power level
-
max. + 10
dBm
*) -
f (Hz) = TC (ppm/K2) x (T - To)2 x F
To
(MHz)
**) goal is to have as much attenuation as possible at frequency points f
c
±
1MHz, f
c
±
2MHz, f
c
±
3MHz,
Generated:
Checked / approved: