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MBH353

1

2

5

4

3

1:1

50

Ω

VIF

input A

1

2

5

4

3

1:1

50

Ω

SIF

input

1

2

5

4

3

1:1

50

Ω

DVB

input B

CBL

100

nF

22

k

Ω

330

Ω

22

k

Ω

2.2

µF

220

nF

10

µF

VP

VP

standard

switch

VCO

adjust

SIF

AGC

CVBS

BC547

AFOUT

AFC

CAF

AFde-emphasis

D

DVB

AGCexternal

DVB

AGCadjust

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

17

18

19

20

21

22

23

24

25

C7

L

(3)

TDA9819

26

27

GND

VIF/DVB

input switch

VIF

AGC

Cref

2.2

µF

2.2

µF

28

29

30

31

32

VCOcontrol

loop

filter

TOP

220

Ω

CVBS

75

Ω

22 k

Ω

100 nF

10 nF

VP

22 k

Ω

330

Ω

560

Ω

tuner

AGC

DVBOUT

4.5/5.5

MHz

video

output

QSS

output

5.6

k

Ω

10

nF

AF

mute

Rx

(1)

22

µF

2.2

k

Ω

Fig.12 Test circuit.

(1) See note 20 in Chapter “Characteristics”.

(3) See Table 3.