TFS75C Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 75c.doc
VI TELEFILTER
Version 1.2
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
633 Ω || -7.1 pF
667 Ω || -9.3 pF
TFS 75C
26.07.2006
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the 75C is the minimum of the pass band attenuation amin. The attenuation at fN is defined as the
insertion loss ae. The centre frequency fc is the arithmetic mean value of the upper and lower frequencies at the 1,5 dB filter attenuation level relative to the
insertion loss ae. The nominal frequency fN is fixed at 75 MHz without any tolerance. The given values for both the relative attenuation arel and the group
delay ripple have to be achieved 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
(reference level)
ae
12,8 dB
max.
16,0 dB
Nominal frequency
Pass band
f_N
PB
13,9 MHz
75,0 MHz
f_N
± 6,35 MHz
Amplitude ripple **
p-p
0,5 dB
max.
1,5 dB
Relative attenuation
f_N -
6,35 MHz ... f_N +
f_N -
f_N +
f_N +
18,8 MHz ... f_N -
10,95 MHz ... f_N +
18,8 MHz ... f_N +
arel
6,35 MHz
10,95 MHz
18,8 MHz
50
MHz
0,5 dB
41
dB
40
dB
45
dB
max.
min.
min.
min.
1,5 dB
40 dB
30 dB
40 dB
Group delay ripple
p-p
60
ns
max. 200 ns
Operating temperature range
OTR
-
-40 °C ... + 85 °C
Storage temperature range
-
-40 °C ... + 85 °C
Temperature coefficient of frequency
TCf **
-87
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.
**) ∆fc(Hz) = TC_f(ppm/K) x (T - T_o) x f_To (MHz).
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.