TFS240K Datasheet, PDF (1/5 Pages) List of Unclassifed Manufacturers – Filter specification

Filename: tfs 240k.doc
VI TELEFILTER
Version 1.5
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
22
°C
02
dBm
196 Ω || -8.2 pF
209 Ω || -11.3 pF
TFS 240K
16.12.2004
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of TFS240K is the minimum of the pass band attenuation amin. This value 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 given values for the relative attenuation arel and the group delay ripple have to be reached at the frequencies given below, even 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.
Data
typ. value
tolerance/limit
Insertion loss
ae = amin
Nominal frequency
fN
Centre frequency
fc
Relative attenuation
arel
f_N -
7 MHz ... f_N + 7
any 3,5 MHz interval within f_N -
f_N - 90
f_N - 30
f_N - 22
@ f_N - 16
f_N + 16
f_N + 18
f_N + 22
MHz ... f_N - 30
MHz ... f_N - 22
MHz ... f_N - 16
MHz **)
MHz ... f_N + 18
MHz ... f_N + 22
MHz ... f_N + 90
MHz
7 MHz... f_N + 7 MHz
MHz
MHz
MHz
MHz
MHz
MHz
Phase linearity (p-p)
within fN ± 6,3 MHz
Group delay GD***)
within f_N ± 7 MHz
Group delay ripple
within f_N ± 7 MHz
GDR ***)
Return loss at Input and Output
within fN ± 6,3 MHz
Triple transit suppression TTS
6,5
-
240,0
dB
MHz
0,5 dB
0,5 dB
54
dB
47
dB
45
dB
55
dB
44
dB
44
dB
47
dB
3
deg
0,45 µs
45
ns
15
dB
80
dB
max. ± 1,5 dB
240,0 MHz
max. 1,4 dB
max. 1 dB
min. 45 dB
min. 45 dB
min. 40 dB
min. 43 dB
min. 40 dB
min. 40 dB
min. 45 dB
max. 15 deg
max. 1 µs
max. 100 ns
min. 9,5 dB
min. 45 dB
Input power level
-
20 dBm
Operating temperature range
-
- 40 °C ... + 80 °C
Storage temperature range
-
- 40 °C ... + 85 °C
Temperature coefficient of frequency
TCf
-94
ppm/K
*) 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.
**) valid for 22 °C, in the operating temperature range a relative attenuation of 41 dB is specified
***) measured with smoothing; smoothing aperture ≤ 50 kHz
Generated:
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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.