English
Language : 

TFS443 Datasheet, PDF (1/4 Pages) Vectron International, Inc – Filter Specification
t_fs_4_4_3_.d_o_c_________________________________________________________________v_e_rs_i_on__1_.1_________________0_6_.0_1_._02_
S__A__W__-_R__e_s__o_n__a_t_o_r_f_i_l_te__r________________F__i_lt_e__r_S__p_e__c_i_f_ic__a_t_i_o_n_______________________T__F_S___4_4__3___1_/_4____
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance:
input:
output:
23 °C
0 dBm
320Ω -1,15 pf
320Ω -1,15 pf
Construction and pin connection
see page 2
50 Ω test circuit
see page 2
Characteristics
Remark:
The maximum of the pass band attenuation amax within the usable signal band width is defined as the insertion loss ae. The insertion loss ae is the
reference value for relative attenuation . The nominal frequency fN is fixed on 443.400 MHz. 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
Variation/ Limitation
______________________________________________________________________________________________________
Insertion loss
ae = amin
3 dB
max. 5 dB
(Reference level)
______________________________________________________________________________________________________
N__o_m__in_a_l_f_re_q__u_e_n_c_y_______________________fN___________________-___________________________4_4_3_,_4_0_0__M__H_z______
C__e_n_tr_e__fr_e_q_u_e_n_c_y_________________________f0___________________4_4_3_,4_1_0______M_H_z_______________________________
3 dB - bandwidth
BW
TBD
-
______________________________________________________________________________________________________
_U_s_a_b_le__s_ig__n_a_l _b_a_n_d_w_i_d_t_h____________________________________-_________________________m_i_n_.__fN__±__1_0_k_H_z_______
Relative attenuation
arel
f_N__+_9_1_0__k_H_z________________________________________________________________________m_i_n_.___5_2____d_B________
_T_e_m_p_e_r_a_t_u_re__c_o_e_f_fi_c_ie_n_t_o__f _fr_e_q_u_e_n_c_y________T_C_f _______________-_0_,0_3_6__p_p_m__/K_2______________________-_____________
Frequency inversion temperature
+ 25 °C
______________________________________________________________________________________________________
Operating temperature range
- 10°C ... + 50°C
______________________________________________________________________________________________________
generated:
checked / approved:
Weinberg
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.