NOISE BLANKER 2

MSB

LSB

FUNCTION

D7

D6

D5

D4

D3

D2

D1

D0

Field Strenght Controlled Rectifier Voltage (control by Vsb-Vr) Vpeak at Vsb-Vr = -500mV (fully Mono )

0

0

Control Off

0

1

Vpeak = 1.3V

1

0

Vpeak = 1.9V

1

1

Vpeak = 2.4V

Noise Blanker Gain

1

Low

0

High

MSB

LSB

FUNCTION

D7

D6

D5

D4

D3

D2

D1

D0

Att. Sensitivity Tuning

0

0

0dB

0

1

-1dB

1

0

-2dB

1

1

-3dB

Gain Sensitivity Tuning

000

0dB

0

0

1

10dB

0

1

0

14dB

0

1

1

18dB

1

0

0

22dB

1

0

1

26dB

1

1

0

30dB

1

1

1

34dB

AC Sensitivity Tuning

0

0

22dB f = 1.1KHz SW1 = SW2 = SW3

0

1

34dB f = 1.1KHz

1

0

not allowed

1

1

21dB f = 160Hz

0AMS ON

1

AMS OFF

AMS

TDA7420

20/29