TDA7541B Datasheet, PDF (18/77 Pages) STMicroelectronics – AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system

Electrical specifications and characteristics
TDA7541B
Table 7. AM section (continued)
Item Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
21.5 C_OUT Output capacitance
21.6 V_52,53 DC output voltage
21.7
g_m
Conversion
transconductance
-
-
MIX2OUT
- 2.5 -
pF
3.7 4.0 4.3 V
- 440 - µA/V
21.8 G_max Max. gain
21.9
ΔG Gain control range
L = 560 µH, Q = 28; C = 180 pF,
referred to MIX2OUT
-
- 26 -
dB
- 20 -
dB
21.10
21.11
21.12
C_step
C_max
INOISE
Min. cap. Step
Max. cap.
Equivalent input noise
voltage,
including buffer mixer2
IF2A
IF2A
- 2.2 -
pF
- 33 -
pF
A_max, R_gen= 330 Ω, R_L = 2 kΩ, noise
of R_gen not included
-
11
-
nV/√H
z
21.13
21.14
CP_1dB
IIP3
1dB compression point
3^rd order Intermodulation
A_max, referred to 330 Ω input
A_max, referred to 330 Ω input
- 114 - dBμV
- 132 - dBμV
22. Buffer AM mixer2
22.1 R_OUT Output resistance
22.2 C_OUT Output capacitance
22.3
V₅₀ DC output voltage
22.4
G gain
23. AM IF2 amplifier
-
-
-
R_L = 2 kΩ
1.6 2 2.4 kΩ
- 2.5 -
pF
3.7 4.0 4.3 V
-8 -6 -4 dB
23.1
R_IN Input resistance
23.2
C_IN Input capacitance
23.3 V_44,47 DC input voltage
23.4 G_max Max. gain
23.5
ΔG Gain control range
23.6
INOISE
Equivalent input noise
voltage
23.7 CP_1dB 1 dB compression point
23.8
IIP3 3^rd order Intermodulation
23.9
V₂₃ IF2 output voltage
24. AMAGC2
-
-
-
-
-
G_max, R_gen = 2 kΩ,
noise of R_gen not included
G_max, referred to 2 kΩ input
G_max, referred to 2 kΩ input
V₅₆ = 90 dBV, m = off
1.6 2 2.4 kΩ
- 2.5 -
pF
4.1 4.3 4.5 V
49 52 55 dB
36 38 40 dB
- 9.5 - nV/√Hz
- 74 - dBμV
- 100 - dBμV
140 190 240 mV_RMS
24.1 V_AGC(start) AGC start voltage (PIN47) Input carrier voltage
24.2 ΔAGC AGC2 range
Between start of AGC2
and the intervention point
of prestage AGC
24.3 g_AGC Control slope
Seek mode
- 62 - dBµV
50 55 -
dB
- 50 - µA/V
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Doc ID 16048 Rev 1