TFH44A Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

File name : TFH44A.doc
VI TELEFILTER
Filter Specification
Version 1.0
TFH 44A
13.03.2001
1/5
1. Measurement condition
Ambient temperature TA:
Input power level:
Terminating impedances at fc:
25 °C
0 dBm.
for input:
for output:
50 Ω  0 pF.
50 Ω  0 pF.
2. Characteristics
Remark:
The insertion loss ae is defined as the insertion loss at the nominal frequency f_N . Reference level for the relative attenuation arel of the TFS 44A
is the insertion loss. The reference 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 temperature coefficient of frequency Tcf is valid both for the centre frequency fc and the frequency response
of the filter in the operating temperature range.
Data
Insertion loss (Reference level) ae
Nominal frequency f_N
Centre frequency f_C
Pass band (PB) :
Amplitude ripple in PB (p-p) :
Bandwidth at ambient temperature:
0,55 dB - band width
1 dB - band width
3 dB - band width
20 dB - band width
42 dB - band width
Relative attenuation
arel
fN
... ^{fN ± 2,50 MHz}
fN ± 2,50 MHz ... fN ± 3,0 MHz
fN ± 3,835 MHz ... fN ± 20
MHz
Group delay ( mean value in PB )
Group delay ripple in fN ... fN ± 2,1 MHz (p-p) *)
Deviation from linear phase in fN ... fN ± 2,1 MHz (p-p)
Triple transit attenuation compared to main signal
Crosstalk
Temperature coefficient of frequency ( Tcf )
Frequency deviation of f_N over temperature :
Operating temperature range
Storage temperature range
typical values
19,8 dB
44 MHz
0,35 dB
5,52 MHz
5,72 MHz
6,07 MHz
6,97 MHz
7,40 MHz
tolerance / limit
max. 22
dB
44
MHz
fC ... fC ± 2,5 MHz
max. 0,55 dB
min. 5,0 MHz
min. 6,0 MHz
max. 7,67 MHz
0,35 dB
< 2,7 dB
43...50 dB
max.
max.
min.
0,55 dB
3 dB
42 dB
2,1 µs
55 ns
2° ( r.m.s. 0,7° )
max.
max.
max.
3 µs
75 ns
3,5°
47 dB
65 dB
- 75 ppm/K
∆fc(Hz) = Tcf(ppm/K) x (T - TA) x fN (MHz)
25 °C
- 25 °C ... + 85 °C
* ) measured with smoothing aperture of 78,75 kHz.
Generated:
Checked/Approved:
Dunzow W.P.
Dr. Bert Wall
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]
Email: [e-mail]
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