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TDA7541B Datasheet(PDF) 14 Page - STMicroelectronics

Part # TDA7541B
Description  AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system
PDF  77 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7541B Datasheet(HTML) 14 Page - STMicroelectronics

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Electrical specifications and characteristics
TDA7541B
14/77
Doc ID 16048 Rev 1
12.6
(S+N)/N
Signal plus noise-to-noise
ratio at MPXOUT
Δf = 40 kHz, f
mod =1 kHz,
V56 =100 dBµV,
De-emphasis = 50 µs,
B = 200 Hz to 15 kHz
ISSENA = 0
70
-
-
dB
12.7
(S+N)/N
Signal plus noise-to-noise
ratio
In weatherband mode
Δf = 3.5 kHz, f
mod =1 kHz,
V56 =100 dBµV,
De-emphasis = 75 µs,
setting see Table 10
40
-
-
dB
13. Quality detection
Unweighted field strength (FSU) and weighted field strength
13.1
V37
DC output voltage
V56 = 20 dBμV, FMON=1,
FSWO = OFF
-2.5
-
V
13.2
V37
DC output voltage
V56 = 50 dBμV, FMON=1,
FSWO = OFF
-3
-
V
13.3
V37
DC output voltage
V56 = 70 dBμV, FMON=1,
FSWO = OFF
-3.5
-
V
13.4
V37
DC output voltage
V56 > 120 dBμV, FMON=1,
FSWO = OFF
-4.6
-
V
13.5
ΔV37
Slope
-
-
25
-
mV/dB
13.6
ΔV37
DC offset
-
-200
-
0
mV
13.7
ROUT
Output impedance
FSWO
17
23.5
30
k
Ω
13.8
V27
DC output voltage
V56 = 20 dBμV, FMON=1,
SL=”101”
-0.1
0.4
V
13.9
V27
DC output voltage
V56 = 50 dBμV, FMON=1,
SL=”101”
-1
-
V
13.10
V27
DC output voltage
V56 = 70 dBμV, FMON=1,
SL=”101”
-2
-
V
13.11
V27
DC output voltage
V56 > 120 dBμV, FMON=1,
SL=”101”
4-
-
V
13.12
ΔV
27
Slope
-
-
50
-
mV/dB
13.13
ROUT
Output impedance
FSU
320
400
480
Ω
13.14
Rload
Load resistor
FSU
-
20
-
k
Ω
13.15
V27
DC output voltage AM
V47 = 20 dBμV, FMON = 0,
SL= ”010”
-0.1
0.3
V
13.16
V27
DC output voltage AM
V47 = 40 dBμV, FMON = 0,
SL= ”010”
-1.25
-
V
13.17
V27
DC output voltage AM
V47 = 60 dBμV, FMON = 0,
SL= ”010”
-3.0
-
V
13.18
V27
DC output voltage AM
V47 > 100 dBμV, FMON = 0,
SL= ”010”
4.5
-
-
V
Table 6.
FM section (continued)
Item
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit



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