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TDA7540N Datasheet, PDF (22/76 Pages) STMicroelectronics – AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system (ISS)
Electrical specifications
TDA7540N
Table 8.
Stereodecoder electrical characteristics (continued)
(Tamb = 25°C, VCC1 = VCC2 = VCC3 = VCCST= VCCVCO = VCCMIX1 = VCCMIX2 = VCCIF1 = 8.5V,
VMPX = 500mVrms mono, f = 1kHz, deemphasis = 50µs, fXtal = 10.25MHz, in application
circuit, unless otherwise specified).
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
VPEAK
VPEAK
VPEAK
VPEAKDEV
Peak voltage
Peak voltage
Peak voltage
Min. deviation dependent
peak voltage
NBRR = 00, VMPX=0mV
VMPX=50mV, f=150kHz
VMPX=200mV, f=150kHz
VMPX=500mV, NBDTH = 11
0.5
0.8 1.0
V
1.6
1.9 2.1
V
2.2
2.5 2.7
V
0.5 0.8 (off) 1.0
VOP
Max. deviation dependent
VPEAKDEV peak voltage
VMPX=500mV, NBDTH= 00
1.7
2.0
2.2
VOP
VPEAKFS
VPEAKFS
TS
TS
SRPEAK
SRPEAK
VRECTADJ
VRECTADJ
VRECTADJ
VRECTADJ
Min. fieldstrength controlled
peak voltage
Max. fieldstrength controlled
peak voltage
Min. blanking time
Max. blanking time
Noise rectifier charge
Noise rectifier charge
Noise rectifier discharge
adjustment
Noise rectifier discharge
adjustment
Noise rectifier discharge
adjustment
Noise rectifier discharge
adjustment
VMPX=0mV, VLEVEL<< VSBL
(fully mono), NBFS = 11
VMPX=0mV, VLEVEL<< VSBL
(fully mono), NBFS = 00
Signal HOLDN in testmode,
NBT
Signal HOLDN in testmode,
NBT
Signal PEAK in testmode,
NBPC=0
Signal PEAK in testmode,
NBPC=1
Signal PEAK in testmode,
NBRR=00, NBSMP=0,
MPPC=0
Signal PEAK in testmode,
NBRR=01, NBSMP=0,
MPPC=0
Signal PEAK in testmode,
NBRR=10, NBSMP=0,
MPPC=0
Signal PEAK in testmode,
NBRR=11, NBSMP=0,
MPPC=0
0.5 0.8 (off) 1.0
V
1.7
2.0 2.2
V
22
μs
38
μs
10
mV/μs
20
mV/μs
0.3
V/ms
0.8
V/ms
1.3
V/ms
2.0
V/ms
VADJMP
VADJMP
Noise rectifier adjustment by
multipath
Noise rectifier adjustment by
strong multipath influence
Signal PEAK in testmode,
VMPTC=1V, NBSMP=0,
MPPC=1, NBRR=01
Signal PEAK in testmode,
VMPTC=1V,, NBSMP=1,
MPPC=0, NBRR=01
2.5
V/ms
3.3
V/ms
VADJMP
Noise rectifier adjustment by Signal PEAK in testmode,
multipath and strong multipath VMPTC=1V,, NBSMP=1,
influence
MPPC=1A, NBRR=01
4.5
V/ms
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