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| 型號： | FN561 |
| 廠商： | Intersil Corporation |
| 英文描述： | OBSOLETE PRODUCT NO RECOMMENDED REPLACEMENT |
| 中文描述： | 已被淘汰產(chǎn)品編號建議更換 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 459K |
| 代理商： | FN561 |
1
FN0561.4
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2002. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
CA3089
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.
Features
.
For FM IF Amplifier Applications in High-Fidelity,
Automotive, and Communications Receivers
Includes: IF Amplifier, Quadrature Detector, AF
Preamplifier, and Specific Circuits for AGC, AFC, Muting
(Squelch), and Tuning Meter
Exceptional Limiting Sensitivity
at -3dB Point. . . . . . . . . . . . . . . . . . . . . . . . . . . 12
μ
V (Typ)
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)
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
Pinouts
Part Number Information
PART
NUMBER
TEMP. RANGE
(
o
C)
PACKAGE
PKG. NO.
CA3089E
-40 to 85
16 Ld PDIP
E16.3
CA3089M1
(3089M)
-40 to 85
20 Ld SOIC
M20.3
CA3089
(PDIP)
TOP VIEW
CA3089
(SOIC)
TOP VIEW
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
IF IN
INPUT BYPASS
DC FB BYPASS
FRAME GND
MUTE CONTROL
AUDIO OUT
IF OUT
AFC OUT
NC
SUBSTRATE (GND)
TUNING METER OUT
MUTE LOGIC
V+
REF BIAS
QUADRATURE INPUT
DELAYED AGC
11
12
13
14
15
16
17
18
20
19
10
9
8
7
6
5
4
3
2
1
GND
IF IN
INPUT BYPASS
DC FB BYPASS
FRAME GND
MUTE CONTROL
AFC OUT
AUDIO OUT
IF OUT
GND
GND
GND
SUBSTRATE (GND)
TUNING METER OUT
DELAYED AGC
MUTE LOGIC
V+
REF BIAS
QUADRATURE INPUT
NC
Data Sheet
October 2002
OBSOLETE PRODUCT
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