TFS173A Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

tfs173A.doc
VI TELEFILTER
Filter Specification
Version 1.5
TFS 173A
01.08.2001
1/5
1. Measurement condition :
Ambient temperature TA:
Input power level:
Terminating impedances at fc *) :
23 °C
0 dBm
for input:
for output:
48 -21,5 pF.
48 -21,5 pF.
( typical value )
( typical value )
2. Characteristics :
Remark:
Reference level for the relative attenuation arel of the TFS173A 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 ( f3dB+ ) and lower
(f3dB-) 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 reference frequency fc and the frequency response of the filter in the operating temperature range. The frequency shift of the filter in the
operating temperature range is not included in the production tolerance scheme.
Data
typ. value
tolerance / limit
Insertion loss (Reference level) ae
Reference frequency fc at ambient temperature (fCTA)
26,5 dB
174,175 MHz
max. 28 dB
174,050 ... 174, 300 MHz
Pass band ( PB )
in O.T.R. :
Amplitude ripple in PB (p-p)
1,1...1,2 dB
min. ( BW3 - 0,35 ) MHz
max. 1,5 dB
Bandwidth :
3 dB - band width ( BW3 ) in O.T.R. :
1,5 dB - band width
3 dB - band width
22 dB - band width
24 dB - band width
at ambient temperature TA .
at ambient temperature TA .
at ambient temperature TA .
at ambient temperature TA .
34,850 MHz
34,960 MHz
35,620 MHz
35,660 MHz
34,95 ± 0,175 MHz
34,95 ± 0,050 MHz
Relative attenuation in O.T.R. : arel
f3dB- + 0,1 MHz ... f3dB+ - 0,1 MHz
f3dB+ + 0,4
f3dB- - 0,6
f3dB+ + 0,6
f3dB- - 1,0
f3dB+ + 1,0
f3dB- - 1,3
MHz ... f3dB+ + 0,6
MHz ... f3dB- - 0,4
MHz ... f3dB+ + 1,0
MHz ... f3dB- - 0,6
MHz ... f3dB+ + 1,3
MHz ... f3dB- - 1,0
MHz
MHz
MHz
MHz
MHz
MHz
f3dB+ + 1,3
f3dB- - 5,0
f3dB+ + 5,0
f3dB- - 100
MHz ... f3dB+ + 5,0
MHz ... f3dB- - 1,3
MHz ... f3dB+ + 100
MHz ... f3dB- - 5,0
MHz
MHz
MHz
MHz
Group delay ( mean value in PB ):
Group delay ripple in PB (p-p):
Deviation from linear phase in PB :
1,2 dB
25
dB
25
dB
27
dB
27
dB
33
dB
33
dB
40
dB
40
dB
50...55
dB
50...60
dB
2,15 µs
50 ns
12° p-p...(2° r.m.s.)
max. 1,5 dB
min. 22 dB
min. 22 dB
min. 24 dB
min. 24 dB
min. 30 dB
min. 30 dB
min. 35 dB
min. 35 dB
min. 45 dB
min. 45 dB
max.
3 µs
max. 120 ns
Triple transit attenuation compared to main signal
Crosstalk
60
dB
60
dB
Temperature coefficient of frequency ( Tcf ) [ LiNbO3 ]
- 87
ppm/K
Frequency deviation of fc over temperature
Operating temperature range ( O.T.R. )
fc(Hz) = Tcf(ppm/K) x (T - TA) x fCTA (MHz)
Storage temperature range
- 94 ppm/K
- 10 °C ... + 70 °C
- 40 °C ... + 85 °C
*) The terminating impedances depend on parasitics and q-values of matching elements and the board used, and are to be understood as
reference values only. Should there be additional questions do not hesitate to ask for an application note or contact our design team.
Generated:
Dunzow W.
Checked/Approved:
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]
E-Mail: [e-mail]
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