TDA7513T datasheet(25/84 Pages) STMICROELECTRONICS

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TDA7513T

Electrical characteristcs

25/84

VRECT

DEV

Deviation dependent

rectifier Voltage (5)

Meas. with VMPX =

800mV (75KHz

dev.)

OVD = 11

0.5

0.9

1.3

OVD = 10

0.9

1.2

1.5

OVD = 01

1.7

2.3

OVD = 00

2.5

2.8

3.1

VRECT FS

Fieldstrength

Controlled Rectifier

Voltage (6)

Rectifier Voltage 4)

VMPX = 0mV

VLEVEL << VSBL

(fully mono)

FSC = 11

0.5

0.9

1.3

FSC = 10

0.9

1.4

1.5

FSC = 01

1.7

1.9

2.3

FSC = 00

2.1

2.4

3.1

Suppression Pulse

Duration (7)

Signal HOLDN

in Testmode

BLT = 00

μs

BLT = 10

μs

BLT = 01

25.5

μs

BLT = 00

μs

VRECTADJ

Noise Rectifier

discharge

adjustment (8)

Signal PEAK in

Testmode

NRD = 00 (8)

(3)

0.3

(3)

V/ms

NRD = 01 (8)

(3)

0.8

(3)

V/ms

NRD = 10 (8)

(3)

1.3

(3)

V/ms

NRD = 11 (8)

(3)

V/ms

SRPEAK

Noise Rectifier

Charge

Signal PEAK in

Testmode

PCH = 0 (9)

(3)

mV/

μs

PCH = 1 (9)

(3)

mV/

μs

VADJMP

Noise Rectifier

adjustment through

Multipath (10)

Signal PEAK in

Testmode

MPNB = 00 (10)

(3)

0.3

(3)

V/ms

MPNB = 00 (10)

(3)

0.5

(3)

V/ms

MPNB = 00 (10)

(3)

0.7

(3)

V/ms

MPNB = 00 (10)

(3)

0.9

(3)

V/ms

All thresholds are measured using a pulse with TR =2ms,THIGH = 2ms and TF = 10ms. The repetition rate must not

icrease the PEAK voltage.

NBT represents the noiseblanker byte bits D2, D0 for the noise blanker trigger threshold.

By design/characterization functionally guaranteed through dedicated test mode structure.

NAT represents the noiseblanker byte bit pair D4, D3 for the noise controlled trigger adjustment.

OVD represents the noiseblanker byte bit pair D7, D6 for the over deviation detector.

FSC represents the fieldstrength byte bit pair D1, D0 for the fieldstrength control.

BLT represents the speaker RR byte bit pair D7, D6 for the blanktime adjustment.

NRD represents the configuration byte bit pair D1, D0 for the noise rectifier discharge adjustment.

PCH represents the stereo decoder byte bit D5 for the noise rectifier charge current adjustment.

10. MPNB represents the highcut byte bit D7 and the field strength byte D7 for the noise rectifier multipath adjustment

Table 26.

Noise blanker (continued)

Symbol

Parameter

Test condition

Min. Typ. Max.

Unit

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