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TFS225 Datasheet, PDF (1/5 Pages) Vectron International, Inc – VI TELE FILTER
t_fs_2_2_5_.d_o_c_________________________________________________________v_e_rs_i_on__1_.3_________________________1_2_/9_8___
V__I__T__E_L__E___F_I_L__T_E__R_____________________F__i_lt_e__r_S__p_e__c_i_f_ic__a_t_i_o_n_____________________T__F_S___2__2_5___-__1_/_5____
Measurement Condition
Ambient temperature: 23 °C
Input power level:
0 dBm
Terminating impedances
for input: 680 Ω || -2.5 pF
for output: 680 Ω || -2.5 pF
Coupling coil:
150 nH
Construction and Pin Configuration
See page 2
50 Ω test circuit and theoretical values of matching elements
see page 3
Stability characteristics and packing
see page 4
Air reflow temperature conditions
see page 5
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 225 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 centre frequency fo 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 for the group delay ripple have to be
reached at the frequencies given below also if the centre frequency fo 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 fo.
Data
typ. Value
Limit
______________________________________________________________________________________________________
Insertion Loss
ae = amin
3
dB
max 5
dB
(Reference Level)
______________________________________________________________________________________________________
C__e_n_te__r _F_r_e_q_u_e_n_c_y________fo__________________________________2_2_5_,0____M__H_z______________________-_____________
Relative Attenuation
arel
225,0 MHz ± 80 kHz
-
max 2
dB
225,0 MHz ± 400 kHz ... 225,0 MHz ± 600 kHz
-
min 25
dB
225,0 MHz ± 600 kHz ... 225,0 MHz ± 800 kHz
-
min 40
dB
225,0 MHz ± 800 kHz ... 225,0 MHz ± 1,6 MHz
-
min 45
dB
225,0 MHz ± 1,6 MHz ...225,0 MHz ± 15 MHz
-
min 50
dB
______________________________________________________________________________________________________
Group Delay GD
-
Group Delay Ripple
225,0 MHz ± 80 kHz
1
µs
max 1,5 µs
______________________________________________________________________________________________________
Operating Temperature Range
- 25 °C ... + 80 °C
Storage Temperature Range
- 30 °C ... + 85 °C
______________________________________________________________________________________________________
Temperature Coefficient of Frequency TCf
ca. - 0,036 ppm/K²
______________________________________________________________________________________________________
Frequency Inversion Temperature
+ 20 ... + 30 °C
______________________________________________________________________________________________________
Generated:
Checked / Approved:
____________________________________________________________________________________________________
VI TELEFILTER
Vectron International, Inc.
Potsdamer Straße 18
267 Lowell Road
D 14 513 TELTOW / Germany
Hudson, NH 03051 / USA
Tel: (+49) 3328 4784-52 / Fax: (+49) 3328 4784-30
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail: tft@telefilter.com
E-Mail: vti@vtinh.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.