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TDA7703 датащи(PDF) 20 Page - STMicroelectronics

номер детали TDA7703
подробное описание детали  Highly integrated tuner for AM/FM car radio
PDF  32 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7703 датащи(HTML) 20 Page - STMicroelectronics

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Electrical specifications
TDA7703
20/32
Rev 1
3.5.2
AM MW overall system performance
Antenna level equivalence: 0 dBµV = 1 µVrms.
Figure 7.
AM MW input set up
Level referred to SG output before antenna dummy (Vrf, node 'A'); capacitive dummy
15pF+68pF, FM input not connected. Frf = 999 kHz (1000 kHz for US), Vrf =74 dBµV,
mod = 30%, faudio =400 Hz, unless otherwise specified.
Table 14.
AM MW overall system performance
Parameter
Test condition
Min
Typ
Max
Units
Tuning range MW Eu/Jp
(can be modified by the user)
531
1629
kHz
Tuning step MW Eu/Jp
(can be modified by the user)
9
kHz
Tuning range MW US
(can be modified by the user)
530
1710
kHz
Tuning step MW US
(can be modified by the user)
10
kHz
Sensitivity
S/N = 20 dB
29
32
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
%
Adjacent channel selectivity
ΔF=9 kHz, V
audio = -10 dBr
(relative to
ΔF = 0 kHz),
m=30%, 1 kHz
97
dB
Alternate channel selectivity
ΔF=18 kHz, V
audio = -10 dBr
(relative to
ΔF = 0 kHz),
m=30%, 1kHz
97
dB
Image rejection
80
dB
Logarithmic field strength
indicator
@60 dBµV
read “AM_Smeter_log”
0.50
(equiv.
to 57
dBµV)
0.47
0.43
(equiv.
to 63
dBµV)
-
PCB
UNDER
TEST
30
Ω
Vrf + 6dB
Vrf
50
Ω
50
Ω
15pF
68pF
A



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