TDA7540B datasheet(19/75 Pages) STMICROELECTRONICS

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TDA7540B

Electrical specifications

19/75

33.17

VRECTADJ

Noise rectifier discharge

adjustment

Signal PEAK in testmode,

NBRR=00, NBSMP=0,

MPPC=0

0.3

V/ms

33.18

VRECTADJ

Noise rectifier discharge

adjustment

Signal PEAK in testmode,

NBRR=01, NBSMP=0,

MPPC=0

0.8

V/ms

33.19

VRECTADJ

Noise rectifier discharge

adjustment

Signal PEAK in testmode,

NBRR=10, NBSMP=0,

MPPC=0

1.3

V/ms

33.20

VRECTADJ

Noise rectifier discharge

adjustment

Signal PEAK in testmode,

NBRR=11, NBSMP=0,

MPPC=0

2.0

V/ms

33.21

VADJMP

Noise rectifier adjustment

by multipath

Signal PEAK in testmode,

VMPTC=1V, NBSMP=0,

MPPC=1

TBD

V/ms

33.22

VADJMP

Noise rectifier adjustment

by strong multipath

influence

Signal PEAK in testmode,

VMPTC=1V,, NBSMP=1,

MPPC=0

TBD

V/ms

33.23

VADJMP

Noise rectifier adjustment

by multipath and strong

multipath influence

Signal PEAK in testmode,

VMPTC=1V,, NBSMP=1,

MPPC=1

TBD

V/ms

33.24

GAMdelay

AM delay filter attenuation

f = 2.2kHz

Multipath Detector

34.1

fCMP

Center frequency of

multipath-bandpass

stereo decoder locked on

pilot tone

kHz

34.2

GBPMP

Min. band pass gain

MPBPG

34.3

GBPMP

Max. band pass gain

MPBPG

34.4

GRECTMP

Min. rectifier gain

MPRG

34.5

GRECTMP

Max. rectifier gain

MPRG

7.6

34.6

ICHMP

Rectifier charge current

MPCC = 0

0.8

µA

34.7

ICHMP

Rectifier charge current

MPCC = 1

0.4

µA

34.8

IDISMP

Rectifier discharge current

Quality detector

35.1

Min. MP influence factor

QDC

0.6

35.2

Max. MP influence factor

QDC

1.05

35.3

Min. noise influence factor

QNG

35.4

Max. noise influence factor

QNG

Table 7.

Electrical characteristics (continued)

(Tamb = 25°C, VCC1 = VCC2 = VCC3 = VCCST= VCCVCO = VCCMIX1 = VCCMIX2 = VCCIF1 = 8.5V,

VMPX = 500mVrmsmono, f = 1kHz, deemphasis = 50µs, fXtal = 10.25MHz, in application

circuit, unless otherwise specified).

Item

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

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