TDA7513T datasheet(16/59 Pages) STMICROELECTRONICS

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TDA7513T

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(0) = All Thresholds are measured using a pulse with TR =2ms,THIGH = 2ms and TF = 10ms. The repetition rate must not icrease the PEAK

voltage.

1) NBT represents the Noiseblanker Byte bits D2, D0 for the noise blanker trigger threshold

2) NAT represents the Noiseblanker Byte bit pair D4, D3 for the noise controlled triggeradjustment

3) OVD represents the Noiseblanker Byte bit pair D7, D6 for the over deviation detector

4) FSC represents the Fieldstrength Byte bit pair D1, D0 for the fieldstrength control

5) BLT represents the Speaker RR Byte bit pair D7, D6 for the blanktime adjustment

6) NRD represents the Configuration-Byte bit pair D1, D0 for the noise rectifier discharge-adjustment

7) PCH represents the Stereodecoder-Byte bit D5 for the noise rectifier charge-current adjustment

8) MPNB represents the HighCut-Byte bit D7 and the Fieldstrength-Byte D7 for the noise rectifier multipath adjustment

4.5 MULTIPATH AND QUALITY DETECTORS

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

VRECTADJ Noise Rectifier

discharge adjustment 6)

Signal PEAK in

Testmode

NRD = 00 6)

( c )

0.3

( c )

V/ms

NRD = 01 6)

( c )

0.8

( c )

V/ms

NRD = 10 6)

( c )

1.3

( c )

V/ms

NRD = 11 6)

( c )

V/ms

SRPEAK

Noise Rectifier Charge

Signal PEAK in

Testmode

PCH = 0 7)

( c )

mV/

µs

PCH = 1 7)

( c )

mV/

µs

VADJMP

Noise Rectifier

adjustment through

Multipath 8)

Signal PEAK in

Testmode

MPNB = 00 8)

( c )

0.3

( c )

V/ms

MPNB = 00 8)

( c )

0.5

( c )

V/ms

MPNB = 00 8)

( c )

0.7

( c )

V/ms

MPNB = 00 8)

( c )

0.9

( c )

V/ms

Table 27. Multipath And Quality Detectors

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

fCMP

Center Frequency of Multipath-

Bandpass

Stereodecoder locked on Pilottone

kHz

GBPMP

Bandpass Gain

bits D2, D1 configuration byte = 00

bits D2, D1 configuration byte = 10

bits D2, D1 configuration byte = 01

bits D2, D1 configuration byte = 11

GRECTMP Rectifier Gain

bits D7, D6 configuration byte = 00

7.6

bits D7, D6 configuration byte = 01

4.6

bits D7, D6 configuration byte = 10

bits D7, D6 configuration byte = 11

off

ICHMP

Rectifier Charge Current

bit D5 configuration byte = 0

0.5

µA

bit D5 configuration byte = 1

µA

IDISMP

Rectifier Discharge Current

0.5

1.5

Table 26. Noise Blanker (continued)

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