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TDA7541B Datasheet, PDF (12/77 Pages) STMicroelectronics – AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system
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
kΩ
-
4
-
pF
530 660 790 Ω
2.2 2.5
2.8
V
20
22
24
dB
14
16
18
dB
-
3
- nV/√Hz
-
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
kΩ
-
3
-
kΩ
530 660 790 Ω
2
2.3
2.6
V
24
26
28
dB
-
2.3
- nV/√Hz
-
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
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Doc ID 16048 Rev 1