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TFS75 Datasheet, PDF (1/3 Pages) Vectron International, Inc – Filter specification
t_fs_75_v1_.d_o_c ________________________________________________________Ve_rs_io_n_3._2 _________06_.0_1_.0_2 __
V__I _T_E_L_E_F_I_L_T_E_R___________________F_i_lt_e_r__s_p_e_c_if_ic_a_t_i_o_n__________________T_F_S__7_5_______1_/_3___
1. Measurement condition
Package, pin connection and 50 Ω matching network (see page 2.)
Ambient temperature TA:
Input power level:
25 °C
0 dBm (typ.)
Max 10 dBm.
Terminating impedances at fc:
for input:
for output:
190 Ω  49 pF.
2,1 Ω  24 pF.
2. Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 75 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 frequence fc is the arithmetic mean value of the upper and lower
frequencies at the 20 dB filter attenuation level relative to the insertion loss ae.
D__a_ta_______________________________________________________t_yp__. _v_a_lu_e_________t_o_le_r_a_n_c_e__/__li_m_i_t___________
_In_s_e_r_ti_o_n__lo_s_s__(R__e_fe_r_e_n_c_e_l_e_v_e_l)___a_e____________________________2_4_,8____d_B_____________m_a_x__2_6____d_B___________
R__e_fe_r_e_n_c_e__fr_e_q_u_e_n_c_y___fc__a_t _o_p_e_ra_t_io_n__te_m__p_e_ra_t_u_r_e_T_O_=_7_0_°_C__(f_C_O_T_) _*)__7_5_.3_0____M__H_z______7_5_._3_0_±__0_,_2_0____M_H__z_________
Relative frequency distance of fCAT within one set of 3 filters
1nd filter with fCAT = 65,9 MHz ± 200 kHz *)
9400 kHz
max ± 20 kHz
3_r_d__fi_lte_r__w_it_h__fC_A_T_=__8_7_,1__M_H__z_±__2_0_0_k_H_z________________________1_1_8_0_0____k_H__z________m__a_x__±__2_0____k_H_z__________
1 dB - band width
6,00 MHz
3 dB - band width
10 dB - band width
20 dB - band width
6,06 MHz
6,27 MHz
6,41 MHz
40 dB - band width
6,55 MHz
45 dB - band width
6,60 MHz
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Amplitude ripple (p-p):
fc ... fc ± 2,8 MHz
0,9 dB
max 1,0 dB
____________________________________________________________________________________________________________________________________________________________________________________________________________
Relative attenuation
arel
fc
fc ± 2.8 MHz
-
max 1,0 dB
fc ± 2.8 MHz
fc ± 3.0 MHz
-
max 3 dB
fc ± 3,3 MHz
45 dB
min 40 dB
In the frequency range fc ± 3,3 MHz ... fc ± 20 MHz the limit line is of type SLOPING LINE.
fc ± 20 MHz
60 dB
min 45 dB
In the frequency range fc ± 20 MHz ... fc ± 25 MHz the limit line is of type SLOPING LINE.
fc ± 25 MHz
55 dB
min 50 dB
fc ± 25 MHz
fc ± 50 MHz
75 dB
-
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Group delay at operation temperature 25°C
4.96 µs
Group delay at operation temperature 70°C
4.98 µs
max 5,0 µs
____________________________________________________________________________________________________________________________________________________________________________________________________________
Group delay ripple (p-p):
fc ... fc ± 3,0 MHz
± 175 ns
± max 200 ns
____________________________________________________________________________________________________________________________________________________________________________________________________________
Deviation from linear phase (p-p): fc ... fc ± 2,8 (3,0) MHz
6,5° (16°)
____________________________________________________________________________________________________________________________________________________________________________________________________________
Triple transit attenuation compared to main signal
48 dB
____________________________________________________________________________________________________________________________________________________________________________________________________________
Input/Output return loss with matching network (S11/S22):
1,6/1,7 dB
____________________________________________________________________________________________________________________________________________________________________________________________________________
Crosstalk
60 dB
____________________________________________________________________________________________________________________________________________________________________________________________________________
Substrate material
LiNbO3
____________________________________________________________________________________________________________________________________________________________________________________________________________
Temperature coefficient of frequency ( Tcf )
-76,466 ppm/K
-94 ppm/K
____________________________________________________________________________________________________________________________________________________________________________________________________________
Frequency deviation of fc over temperature
∆fc(Hz) = Tcf(ppm/K) x (T - TA) x fCAT (MHz)
____________________________________________________________________________________________________________________________________________________________________________________________________________
Operating temperature range
+ 70 ° ± 1° C
S__to_r_a_g_e__te_m__p_e_r_a_tu_r_e__ra_n__g_e_________________________________- _4_0_°_C__.._._+_8_5__°_C______________________________
*) For the 2nd filter fCOT is its reference frequency fC at the operation temperature OT = 70 °C ± 1 °C.
The reference frequency at ambient temperature fCAT for this 2nd filter and the from it resulting relative frequency distance have
to be determined.
Responsible:
Generated:
Weinberg
Checked/Approved:
Dr. Bert Wall
____________________________________________________________________________________________________________________________________________________________________________________________________________
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