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TFS270A1 Datasheet, PDF (1/4 Pages) Vectron International, Inc – SAW filter specification
T_F_S_2_7_0A_1_.d_o_c_________________________________________________________________________________________V_e_rs_io_n__1_.0_
V__I__T_E__L_E__F_I_L__T_E__R_________________________S_A__W___f_i_lt_e__r_s__p_e__c_i_f_ic__a_t_i_o_n________________T_F__S__2_7__0_A__1_______1__/_4_
Measurement condition
Ambient temperature: 23 °C
Input power level:
0 dBm
Terminating impedance input:
510 Ω || -1.75 pF
Terminating impedance output: 510 Ω || -1.75 pF
ext. coil pin4:
82 nH
Construction
see page 2
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 270A1 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 nominal frequency fN is fixed on 270,000 MHz without
tolerance. The values of the pass band ripple and the relative attenuation arel are guaranteed in the whole operating temperature
range. The frequency shift of the filter in the operating temperature range is included in the measurement tolerance scheme.
Preliminary Data
typ. value
tolerance / limit
__________________________________________________________________________________________________________
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____________________________________-____________________________2_7_0_,0_0_0___M_H_z_________
Pass band ripple
fN - 70 kHz ... fN + 70 kHz
fN - 90 kHz ... fN + 90 kHz
0,5
max 2
dB
1,0
max 3
dB
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Relative attenuation
arel
270,0 MHz ± 400 kHz ... 270,0 MHz ± 600 kHz
270,0 MHz ± 600 kHz ... 270,0 MHz ± 1,0 MHz
270,0 MHz ± 1,0 MHz ... 270,0 MHz ± 30 MHz
30
dB
40
dB
50
dB
min 20
dB
min 27
dB
min 40
dB
__________________________________________________________________________________________________________
Group delay distortion GDD
270,0 MHz ± 70 kHz
0,5 µs
max 2
µs
__________________________________________________________________________________________________________
Operating temperature range
- 20 °C ... + 85 °C
Storage temperature range
- 30 °C ... + 85 °C
__________________________________________________________________________________________________________
_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
-
__________________________________________________________________________________________________________
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.