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TDA7541B Datasheet, PDF (12/77 Pages) STMicroelectronics – AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system | |||
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Electrical specifications and characteristics
TDA7541B
Table 6. FM section (continued)
Item Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
6.2
V13 Min. AGC output voltage V8-10 = 100 mVRMS
-
-
0.5
V
6.3
I13 Min. AGC charge current V8-10= 0 mVRMS,V13 = 2.5 V
-33 -25 -17.5 µA
6.4
I13
Max. AGC discharge
current
V8-10 = 100 mVRMS,V13 = 2.5 V 1.7
2.5
3.3 mA
7. AGC PIN diode driver output
7.1
I12 AGC OUT, current min. V8-10 = 0 mVRMS, V12 = 2.5V
15
25
35
µA
7.2
I12 AGC OUT, current max. V8-10 = 50 mVRMS, V12 = 2.5 V
-
-
-16 mA
8. FM I/Q Mixer1 (10.7 MHz)
8.1
RIN Input resistance
8.2
CIN Input capacitance
8.3
ROUT Output resistance
8.4
V8,11 Input DC bias
8.5
G Gain
Differential
Differential
-
-
Unloaded
8.6
Gl
Gain
8.7 INOISE Equivalent input noise
With 330 Ω load
-
8.8 CP1dB 1dB compression point Referred to diff. mixer input
8.9
IIP3 3rd order intermodulation -
8.10 IQP I/Q phase adjust
PH
8.11 IRR Image rejection ratio
Ratio wanted/image
8.12 IRR Image rejection ratio
With phase adjust
8
10
12
kâ¦
-
4
-
pF
530 660 790 Ω
2.2 2.5
2.8
V
20
22
24
dB
14
16
18
dB
-
3
- nV/âHz
-
100
- dBµV
-
119
- dBµV
-7
-
+8 DEG
30
40
-
dB
40
46
-
dB
9. WB I/Q Mixer1 (10.7 MHz)
9.1
RIN Input resistance
9.2
CIN Input capacitance
9.3
ROUT Output resistance
9.4
V5 Input dc bias
9.5
G Gain
Single ended
Single ended
-
-
unloaded
9.6 INOISE Equivalent Input noise Source impedance 400 Ω
9.7
IIP3 3rd order intermodulation -
1.7
2.5
3.3
kâ¦
-
3
-
kâ¦
530 660 790 Ω
2
2.3
2.6
V
24
26
28
dB
-
2.3
- nV/âHz
-
113
- dBµV
10. IF1 amplifier (10.7 MHz)
10.1
RIN Input resistance
-
10.2
CIN Input capacitance
-
10.3
V61 DC input voltage
-
10.4 ROUT Output resistance
-
10.5 COUT Output capacitance
-
265 330 396 Ω
-
2.5
-
pF
- VCCIF1/3 -
V
265 330 396 Ω
-
2.5
-
pF
12/77
Doc ID 16048 Rev 1
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