Datasheet > CA3089M1

CA3089M1

更新时间： 2025-07-18 22:24:15

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
7页	239K
描述
FM IF System

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CA3089M1 数据手册

CA3089

FM IF System

November 1996

Features

Description

• For FM IF Ampliﬁer Applications in High-Fidelity,

Automotive, and Communications Receivers

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.

• Includes: IF Ampliﬁer, Quadrature Detector, AF

Preampliﬁer, and Speciﬁc Circuits for AGC, AFC, Muting

(Squelch), and Tuning Meter

• Exceptional Limiting Sensitivity

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

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.

• Low Distortion:

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

• Single-Coil Tuning Capability

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

• Provides Speciﬁc Signal for Control of Interchannel

Muting (Squelch)

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.

• 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

Ordering Information

PART NUMBER

(BRAND)

TEMP.

RANGE ( C)

PKG.

NO.

PACKAGE

16 Ld PDIP

20 Ld SOIC

CA3089E

-40 to 85

E16.3

M20.3

CA3089M1

(3089M)

-40 to 85

Pinout

CA3089

(PDIP)

CA3089

(SOIC)

TOP VIEW

GND

IF IN

16 NC

DELAYED AGC

INPUT BYPASS

DC FB BYPASS

FRAME GND

MUTE CONTROL

AUDIO OUT

AFC OUT

15 DELAYED AGC

14 SUBSTRATE (GND)

13 TUNING METER OUT

12 MUTE LOGIC

11 V+

INPUT BYPASS

DC FB BYPASS

FRAME GND

MUTE CONTROL

AUDIO OUT

AFC OUT

18 GND

17 SUBSTRATE (GND)

16 TUNING METER OUT

MUTE LOGIC

14 V+

13 REF BIAS

10 REF BIAS

IF OUT

QUADRATURE INPUT

IF OUT

GND 10

11 NC

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

File Number 561.3

8-27

12 3 4 5 6 7

中文翻译

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