TDA7540B Datasheet, PDF (18/75 Pages) STMicroelectronics – AM/FM Car Radio Tuner IC with Stereo Decoder and Intelligent Selectivity System (ISS)

Electrical specifications
TDA7540B
Table 7.
Electrical characteristics (continued)
(T_amb = 25°C, V_CC1 = V_CC2 = V_CC3 = V_CCST= V_CCVCO = V_CCMIX1 = V_CCMIX2 = V_CCIF1 = 8.5V,
V_MPX = 500mV_rmsmono, f = 1kHz, deemphasis = 50µs, f_Xtal = 10.25MHz, in application
circuit, unless otherwise specified).
Item Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
30 Traffic Radio (Note 2)
30.1
a57 Signal f=57kHz
31 SCA - Subsidiary Communications Authorization (Note 3)
31.1
a67 Signal f=67kHz
32 ACI - Adjacent Channel Interference (Note 4)
32.1
a114 Signal f=114kHz
32.2
a190 Signal f=190kHz
33
33.1
33.2
33.3
33.4
33.5
33.6
33.7
33.8
33.9
FM noise blanker
V_TRMIN
V_TRMAX
V_TRSTEP
V_TRNOISE
Min. trigger threshold ⁰⁾
Max. trigger threshold ⁰⁾
Trigger threshold step⁰⁾
Min. noise controlled
trigger threshold ⁰⁾
Max. noise controlled
V_{TRNOISE trigger threshold 0)}
V_PEAK
V_PEAK
V_PEAK
V_PEAKDEV
Peak voltage
Peak voltage
Peak voltage
Min. deviation dependent
peak voltage
V_PEAK=0.8V, NBLTH
V_PEAK=0.8V, NBLTH
V_PEAK=1.5V, NBCTH
V_PEAK=1.5V, NBCTH
NBRR = 00, V_MPX=0mV
V_MPX=50mV, f=150kHz
V_MPX=200mV, f=150kHz
V_MPX=500mV, NBDTH = 11
33.10
33.11
33.12
33.13
33.14
33.15
33.16
Max. deviation dependent
V_{PEAKDEV peak voltage}
V_MPX=500mV, NBDTH= 00
V_PEAKFS
Min. fieldstrength controlled V_MPX=0mV, V_LEVEL<< V_SBL
peak voltage
(fully mono), NBFS = 11
V_PEAKFS
Max. fieldstrength
controlled
peak voltage
V_MPX=0mV, V_LEVEL<< V_SBL
(fully mono), NBFS = 00
T_S
Min. blanking time
Signal HOLDN in testmode,
NBT
T_S
Max. blanking time
Signal HOLDN in testmode,
NBT
SR_PEAK Noise rectifier charge
Signal PEAK in testmode,
NBPC=0
SR_PEAK Noise rectifier charge
Signal PEAK in testmode,
NBPC=1
70
75
95
84
147
280
19
450
1200
0.8
1.9
3.5
0.8
(off)
2.0
0.8
(off)
2.0
22
38
10
20
dB
dB
dB
dB
mV_OP
mV_OP
mV_OP
mV_OP
mV_OP
V
V
V
V_OP
V_OP
V
V
µs
µs
mV/µs
mV/µs
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