ca3089 Intersil Corporation, ca3089 Datasheet - Page 4

• Manufacturer Part Number: ca3089
• Description: Fm If System
• Manufacturer: Intersil Corporation

Test Applications
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 6. ACTUAL SIZE PHOTOGRAPHS OF THE CA3089E AND OUTBOARD COMPONENTS MOUNTED ON A PRINTED-CIRCUIT BOARD
FIGURE 6A. BOTTOM VIEW OF PRINTED CIRCUIT BOARD
0.02
DELAYED
F
AGC FOR
RF AMPL
10K
INPUT
0.02 F
15
IF
1
3
2
IF AMPLIFIER
FRAME SUBSTRATE
DETECTOR
(Continued)
AMPL.
LEVEL
4
1
ST
4
IF
REGULATORS
TO INTERNAL
14
DETECTOR
LEVEL
2
AMPL.
ND
METER
IF
150 A
V+
11
DETECTOR
LEVEL
3
AMPL.
RD
33K
IF
OUT
QUADRATURE
CA3089
CIRCUIT
IF
TUNING
METER
13
8
INPUT
TUNING METER OUTPUT
22 H
DETECTOR
LEVEL
9
MUTE (SQUELCH)
QUADRATURE
DRIVE CIRCUIT
(NOTE 16)
DETECTOR
100pF
C =
L
FIGURE 6B. COMPONENT SIDE - TOP VIEW
10
REFERENCE
BIAS
TO STEREO
THRESHOLD
LOGIC CIRCUITS
(SQUELCH)
CONTROL
AMPL.
AUDIO
AMPL.
AUDIO
AMPL.
MUTE
AFC
12
7
6
5
0.33 F
AFC
OUTPUT
AUDIO
OUTPUT
MUTING
SENSITIVITY
470
120K
500K