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MHA953

13

7

24

5

6

18

19

14

17

16

TADJ

GND

ceramic

resonator

10.7 MHz

15

(1)

89

10

13

12

11

TV/radio

tuner AGC

5.6 k

Ω

20

4.5 MHz

560

Ω

10.7 MHz

330

Ω

IF

input

RIF

input

10 nF

56 k

Ω

VP

10 nF

10 nF

1.1 V (p-p)

video

AFC/RIF

level

33 k

Ω

100 nF

10

nF

330

Ω

220

nF

22 k

Ω

6.8

k

Ω

2.2

µF

13

k

Ω

loop

filter

VIF

AGC

LP2

soft

mute

LP0

Rx

22

µF

CDEC

AF

output

TDA9809M

intercarrier

output

330

Ω

50

Ω

1 : 1

5

4

3

1

2

soft mute

off

forced

mute

switch

VP

Fig.15 Test circuit.

(1) See Table 4.