CA3189 datasheet(7/8 Pages) INTERSIL

Part #	CA3189

Description	FM IF System

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Manufacturer	INTERSIL [Intersil Corporation]

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7

o

Typical Application

NOTES:

12. All resistance values are in ohms.

13. CF: Ceramic filters, TOKO CSFE or equivalent.

14. L tunes with 100pF (C) at 10.7MHz. Q0 (unloaded) ≅ 75 (TOKO No. KACS K586HM or equivalent).

FIGURE 3. COMPLETE FM IF SYSTEM FOR HIGH QUALITY RECEIVERS

AUDIO

6

2

3

390

1

11

8

7

3.9K

100

L (NOTE 14)

8.2K

22

µH

AFT

pF

10

12K

10

µF

10

µF

10nF

+12V

47

Ω

10nF

390

1.8K

10nF

470

2.2K

Q2

10nF

4

10nF

10K

33K

100nF

47K

13

16

470

47K

10K

47

µF

2.2

µF 3.9nF

RF AGC

TUNING

0V

390

10nF

470

Q1

(NOTE 13)

10nF

3.3K

1.8K

2.2K

1nF

10.7MHz

FROM

TUNER

68K

10K

CA3189E

3.3K

9

5

12

15

CF

(NOTE 13)

CF

CA3189

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