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TDA7703R Scheda tecnica(PDF) 21 Page - STMicroelectronics

Il numero della parte TDA7703R
Spiegazioni elettronici  Highly integrated tuner for AM/FM car radio
PDF  32 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7703R Scheda tecnica(HTML) 21 Page - STMicroelectronics

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TDA7703R
Electrical specifications
Rev 1.2
21/32
3.5.3
AM LW overall system performance
Antenna level equivalence: 0dBµV = 1µVrms
Figure 8.
AM LW input set-up
Level referred to SG output before antenna dummy (Vrf, node 'A'); capacitive dummy
15pF+68pF; FM input not connected. Frf = 216 kHz, Vrf =74 dBµV, mod = 30 %, faudio = 400
Hz, unless otherwise specified.
Table 15.
AM LW overall system performance
Parameter
Test condition
Min
Typ
Max
Units
Tuning range LW
(can be modified by the user)
144
288
kHz
Tuning step LW
(can be modified by the user)
1
kHz
Sensitivity
S/N =20dB
31
34
dBµV
Ultimate S/N
@ 80 dBµV
63
66
dB
AGC F.O.M.
Ref.=74 dBµV
-10dB drop point
50
62
65
dB
Distortion
m = 80 %
0.1
%
Image rejection
80
dB
PCB
UNDER
TEST
30
Ω
Vrf + 6dB
Vrf
50
Ω
50
Ω
15pF
68pF
A



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