CA3089E datasheet(4/8 Pages) INTERSIL

No de pièce	CA3089E

Description	FM IF System

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Fabricant	INTERSIL [Intersil Corporation]

Site Internet	http://www.intersil.com/cda/home

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4

Block Diagram

NOTES:

15. All resistance values are in ohms.

16. L Tunes with 100pF (C) at 10.7MHz.

17. QO @ 75 (G.I. EX22741 or equivalent).

18. Pin numbers refer to 16 lead DIP.

FIGURE 6A. BOTTOM VIEW OF PRINTED CIRCUIT BOARD

FIGURE 6B. COMPONENT SIDE - TOP VIEW

FIGURE 6. ACTUAL SIZE PHOTOGRAPHS OF THE CA3089E AND OUTBOARD COMPONENTS MOUNTED ON A PRINTED-CIRCUIT BOARD

Test Applications (Continued)

14

13

15

2

3

1

11

8

9

10

5

6

7

4

LEVEL

DETECTOR

12

LEVEL

DETECTOR

LEVEL

DETECTOR

LEVEL

DETECTOR

1ST IF

AMPL.

2ND IF

AMPL.

3RD IF

AMPL.

MUTE (SQUELCH)

DRIVE CIRCUIT

QUADRATURE

DETECTOR

TUNING

METER

CIRCUIT

AFC

AMPL.

AUDIO

AMPL.

AUDIO

MUTE

(SQUELCH)

CONTROL

AMPL.

V+

FRAME

SUBSTRATE

150

µA

METER

33K

TUNING METER OUTPUT

TO STEREO

THRESHOLD

LOGIC CIRCUITS

10K

DELAYED

AGC FOR

RF AMPL

0.02

µF

0.02

µF

IF

INPUT

TO INTERNAL

REGULATORS

IF

OUT

REFERENCE

BIAS

AFC

OUTPUT

AUDIO

OUTPUT

MUTING

SENSITIVITY

0.33

µF

500K

120K

470

QUADRATURE

INPUT

22

µH

C =

100pF

L

IF AMPLIFIER

(NOTE 16)

CA3089

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