TDA7703/TDA7703R
7.2 AM MW overall system performance
Antenna level equivalence: 0dB
μ
V = 1
μ
V
rms
Level referred to SG output
before antenna dummy; capacitive dummy 15pF+65pF
Reference modulation = 30%, f
audio
=400Hz, F
rf
=999kHz (1000 kHz for US), V
rf
= 74 dBu
Unless otherwise specified
Limits
Symbol
Parameter
Test Condition, Comments
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
=20dB
28
dBu
Ultimate S/N
@ 80dBu
66
dB
AGC
F.O.M.
Ref.=74dBu
-10dB drop point
50 60
dB
Distortion
M=80%
0.3
%
Adjacent channel Selectivity
Δ
F=9kHz, SINAD=26dB
undesired. m=30%, 1kHz
33 dB
Alternate Channel Selectivity
Δ
F=18kHz, SINAD=26dB
undesired. m=30%, 1kHz
50 dB
Strong signal interferer (1)
SNR
Δ
F=±40kHz
desired=40dBu
undesired=100dBu, m=30%,
1kHz
17 dB
Strong signal interferer (1)
suppression
Δ
F=±40kHz
desired=40dBu
undesired=100dBu, m=30%,
1kHz
1
dB
Strong signal interferer (1)
cross-modulation
Δ
F=±40kHz
desired=80dBu
undesired=100dBu, m=30%,
1kHz
maximum SNR of undesired
channel
10
dB
Strong signal interferer (2)
SNR
Δ
F=±400kHz
desired=40dBu
undesired=100dBu, m=30%,
1kHz
18 dB
Strong signal interferer (2)
suppression
Δ
F=±400kHz
desired=40dBu
undesired=100dBu, m=30%,
1kHz
1
dB
Strong signal interferer (2)
cross-modulation
Δ
F=±400kHz
desired=80dBu
undesired=100dBu, m=30%,
1kHz
maximum SNR of undesired
channel
10
dB
Max. Strong signal interferer
Desired = 40dBu
SINAD = 26dB, blocking<6dB
Undesired
Δ
F = 400kHz,
m=30% (crossmod. test)
89 dBu
Image
rejection
70
dB
Logarithmic field strength
indicator
@TBD dBu
read “AM_Smeter_log”
TBD
(equiv.
to TBD
dBu)
TBD
TBD
(equiv.
to TBD
dBu)
-
Rev. 1.0
13/22
Содержание CEM5000/00
Страница 7: ...SET BLOCK DIAGRAM 3 1 3 1 ...
Страница 8: ...SET WIRING DIAGRAM 4 1 4 1 ...
Страница 9: ...5 1 5 1 CIRCUIT DIAGRAM MAIN BOARD PART 1 ...
Страница 10: ...5 2 5 2 CIRCUIT DIAGRAM MAIN BOARD PART 2 ...
Страница 11: ...CIRCUIT DIAGRAM MAIN BOARD PART 3 5 3 5 3 ...
Страница 12: ...CIRCUIT DIAGRAM MAIN BOARD PART 4 5 4 5 4 ...
Страница 13: ...CIRCUIT DIAGRAM MAIN BOARD PART 5 5 5 5 5 ...
Страница 14: ...5 6 LAYOUT DIAGARM MAIN BOARD TOP SIDE VIEW 5 6 ...
Страница 15: ...LAYOUT DIAGARM MAIN BOARD BOTTOM SIDE VIEW 5 7 5 7 ...
Страница 17: ...LAYOUT DIAGRAM PANEL BOARD 6 2 6 2 ...
Страница 18: ...CIRCUIT DIAGRAM SERVO BOARD PART 1 7 1 7 1 ...
Страница 19: ...CIRCUIT DIAGRAM SERVO BOARD PART 2 7 2 7 2 ...
Страница 20: ...LAYOUT DIAGRAM SERVO BOARD TOP SIDE VIEW 7 3 7 3 ...
Страница 21: ...LAYOUT DIAGRAM SERVO BOARD BOTTOM SIDE VIEW 7 4 7 4 ...
Страница 22: ...9 1 Revision list Version1 0 3141 785 35010 Initial Release Version1 1 3141 785 35011 new 51 added ...
Страница 31: ......
Страница 60: ...29 30 TDA7419 Table 20 Revision History Date Revision Description of Changes November 2004 1 First Issue ...
Страница 81: ...TDA7703 TDA7703R 10 0 APPLICATION SCHEMATIC Figure 5 FM Eu US JP AM LW MW application Rev 1 0 20 22 ...
Страница 82: ...TDA7703 TDA7703R 11 PACKAGE INFORMATION Rev 1 0 21 22 ...