TDA7540B Datasheet, PDF (15/75 Pages) STMicroelectronics – AM/FM Car Radio Tuner IC with Stereo Decoder and Intelligent Selectivity System (ISS)

TDA7540B
Electrical specifications
Table 6.
Electrical Characteristics
(T_amb = 25°C, V_CC1 = V_CC2 = V_CC3 = V_CCST= V_CCVCO = V_CCMIX1 = V_CCMIX2 = V_CCIF1 = 8.5V,
f_RF = 98MHz, m= 30%, f_MOD = 400kHz, f_Xtal = 10.25MHz, in application circuit, unless
otherwise specified).
Item Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
20.4
20.5
CP_1dB
IIP3
1dB compression point
3rd order intermodulation
20.6
F
Noise figure
20.7
A
Gain
20.8
20.9
20.10
C_min
C_max
C_1-80
Min. capacitance step
Max. capacitance
21 AM Mixer2 (450kHz)
referred to diff. mixer input
IF1T
IF1T
IF1T
112
dBµV
132
dBµV
8
dB
26
dB
0.55
pF
8.25
pF
2
pF
21.1
21.2
21.3
21.4
R₇₁
C₇₁
CP_1dB
IIP3
Input resistance
Input capacitance
1dB compression point
3rd order intermodulation
21.5
F
Noise figure
21.6
A
Max. gain
21.7
∆A Gain control range
21.8
21.9
21.10
C_min
C_max
C_62-63
Min. cap step
Max. cap
22 IF Noise Blanking
referred to diff. mixer input
Mixer2 tank output
IF2T
IF2T
IF2T
330
W
2.5
pF
120
dBµV
132
dBµV
12
dB
34
dB
20
dB
1.6
pF
24
pF
2
pF
22.1
22.2
22.3
22.4
22.5
22.6
22.7
t_bl
t_bl
V_th
V_th
V_thstep
V_desth
V_desth
Min. blanking time
Max. blanking time
Min internal threshold
Max. internal threshold
Threshold step
Min. desensitivity threshold
Max. desensitivity threshold
8
µs
17
µs
0
mV
187.5
mV
12.5
mV
3.2
V
4
V
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