CA3089E Intersil Corporation, CA3089E Datasheet

CA3089E

Manufacturer Part Number

CA3089E

Description

FM IF system for FM IF amplifier applications in high-fidelity, automotive, and communications receivers

Manufacturer

Intersil Corporation

Datasheet

1.CA3089E.pdf (8 pages)

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Download datasheet (460Kb)

FM IF System

Description

Intersil CA3089 is a monolithic integrated circuit that pro-

vides all the functions of a comprehensive FM-IF system.

The block diagram shows the CA3089 features, which

include a three-stage FM-IF amplifier/limiter configuration

with level detectors for each stage, a doubly-balanced

quadrature FM detector and an audio amplifier that features

the optional use of a muting (squelch) circuit.

The advanced circuit design of the IF system includes desir-

able deluxe features such as delayed AGC for the RF tuner,

and AFC drive circuit, and an output signal to drive a tuning

meter and/or provide stereo switching logic. In addition, inter-

nal power supply regulators maintain a nearly constant cur-

rent drain over the voltage supply range of +8.5V to +16V.

The CA3089 is ideal for high-fidelity operation. Distortion in a

CA3089 FM-IF System is primarily a function of the phase

linearity characteristic of the outboard detector coil.

Part Number Information

Pinouts

CA3089E

CA3089M1

(3089M)

NUMBER

PART

MUTE CONTROL

INPUT BYPASS

DC FB BYPASS

FRAME GND

AUDIO OUT

AFC OUT

IF OUT

IF IN

TEMP. RANGE

-40 to 85

(

TOP VIEW

CA3089

(PDIP)

16 Ld PDIP

20 Ld SOIC

Data Sheet

PACKAGE

DELAYED AGC

SUBSTRATE (GND)

TUNING METER OUT

MUTE LOGIC

V+

REF BIAS

QUADRATURE INPUT

PKG. NO.

M20.3

E16.3

1-888-INTERSIL or 321-724-7143

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Features

• For FM IF Amplifier Applications in High-Fidelity,

• Includes: IF Amplifier, Quadrature Detector, AF

• Exceptional Limiting Sensitivity

• Low Distortion:

• Single-Coil Tuning Capability

• High Recovered Audio . . . . . . . . . . . . . . . . . . 400mV (Typ)

• Provides Specific Signal for Control of Interchannel Muting

• Provides Specific Signal for Direct Drive of a Tuning Meter

• Provides Delayed AGC Voltage for RF Amplifier

• Provides a Specific Circuit for Flexible AFC

• Internal Supply-Voltage Regulators

MUTE CONTROL

Automotive, and Communications Receivers

Preamplifier, and Specific Circuits for AGC, AFC, Muting

(Squelch), and Tuning Meter

at -3dB Point. . . . . . . . . . . . . . . . . . . . . . . . . . . 12 V (Typ)

(with Double-Tuned Coil) . . . . . . . . . . . . . . . . . 0.1% (Typ)

(Squelch)

INPUT BYPASS

DC FB BYPASS

FRAME GND

AUDIO OUT

All other trademarks mentioned are the property of their respective owners.

AFC OUT

October 2002

IF OUT

Intersil (and design) is a registered trademark of Intersil Americas Inc.

GND

IF IN

GND

TOP VIEW

CA3089

(SOIC)

GND

DELAYED AGC

GND

SUBSTRATE (GND)

TUNING METER OUT

MUTE LOGIC

V+

REF BIAS

QUADRATURE INPUT

CA3089

FN0561.4

Related parts for CA3089E

CA3089E Summary of contents

Page 1

... The CA3089 is ideal for high-fidelity operation. Distortion in a CA3089 FM-IF System is primarily a function of the phase linearity characteristic of the outboard detector coil. Part Number Information PART TEMP. RANGE o NUMBER ( C) PACKAGE CA3089E - PDIP CA3089M1 - SOIC (3089M) Pinouts CA3089 (PDIP) TOP VIEW IF IN ...

Page 2

Absolute Maximum Ratings Supply Voltage Between V+ and Frame GND .16V Between V+ and Substrate GND ...

Page 3

... TUNER (NOTE 12) NOTES: 11. All resistance values are in ohms. 12. Waller 4SN3FIC or equivalent. 13. Murata SFG 10.7mA or equivalent. 14. L tunes with 100pF (C) at 10.7MHz Q (G.I. EX22741 or equivalent). FIGURE 5. TYPICAL FM TUNER USING THE CA3089E WITH A SINGLE TUNED DETECTOR COIL 3 CA3089 5K SIGNAL AFC OUTPUT 7 INPUT VOLTAGE 2 ...

Page 4

... Test Applications (Continued) FIGURE 6A. BOTTOM VIEW OF PRINTED CIRCUIT BOARD FIGURE 6. ACTUAL SIZE PHOTOGRAPHS OF THE CA3089E AND OUTBOARD COMPONENTS MOUNTED ON A PRINTED-CIRCUIT BOARD Block Diagram TO INTERNAL REGULATORS IF IF AMPLIFIER INPUT AMPL. 3 0.02 0. LEVEL DETECTOR DELAYED AGC FOR RF AMPL 15 10K FRAME SUBSTRATE 4 14 NOTES: 15 ...

Page 5

Schematic Diagram IF AMPLIFIER INPUT INPUT ...

Page 6

Schematic Diagram (Continued) QUADRATURE 9 INPUT DETECTOR 500 500 10K 200 10K 28 ...

Page 7

Dual-In-Line Plastic Packages (PDIP INDEX N/2 AREA -B- -A- D BASE PLANE -C- SEATING PLANE 0.010 (0.25 NOTES: 1. Controlling Dimensions: INCH. In case of conflict between ...

Page 8

... Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use ...

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