IF FREQUENCY

(MHz)

AFC OUTPUT

VOLTAGE (V)

38.5

39.3

38.7

38.9

39.1

0

2

4

6

8

Figure 3 : AFC Voltage versus Input Frequency

ATTENUATION

(V)

1

234

5

0

-20

-40

-60

-80

-100

V

(V)

9

Figure 4 : Volume Control Attenuation versus

Voltage in Pin 9

C

Processor

Pushpull

Output

9

TDA8213

80 k

Ω

10k

Ω

ST63XX

Figure 5 : Typical Connection from

µP to TDA8213 for Remote Volume Control (Pin 9)

4.5

3.9

3.2

2.5

1.9

1.3

t( s)

µ

14

V

(V)

White spike noise clamp

Top white

White noise level insertion

Noise level insertion

Top synchronization

Black spikes noise clamp

Figure 6 : Black and White Noise Inverter

TDA8213

5/8