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參數資料
| 型號： | CA3189E |
| 廠商： | HARRIS SEMICONDUCTOR |
| 元件分類： | 接收器 |
| 英文描述： | FM IF System |
| 中文描述： | FM, AUDIO DEMODULATOR, PDIP16 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 129K |
| 代理商： | CA3189E |
1
May 1999
CA3189
FM IF System
Features
Includes IF Amplifier, Quadrature Detector, AF
Preamplifier, and Specific Circuits for AGC, AFC, Tun-
ing Meter, Deviation-Noise Muting, and ON Channel
Detector
FM IF Amplifier Applications in High-Fidelity,
Automotive, and Communications Receivers
Exceptional Limiting Sensitivity -12
μ
V (Typ) at -3dB
Point
Low Distortion -0.1% (Typ) (with Double-Tuned Coil)
Single-Coil Tuning Capability
Improved S + N/N Ratio
Externally Programmable Recovered Audio Level
Provides Specific Signal for Control of Interchannel
Muting (Squelch)
Provides Specific Signal for Direct Drive of a Tuning
Meter
On Channel Step for Search Control
Provides Programmable AGC Voltage for RF Amplifier
Provides a Specific Circuit for Flexible Audio Output
Internal Supply Voltage Regulators
Externally Programmable “On” Channel Step Width,
and Deviation at Which Muting Occurs
Description
The Harris CA3189E is a monolithic integrated circuit that
provides all the functions of a comprehensive FM-lF system.
The block diagram of the CA3189E includes a three-stage
FM-lF 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 programmable delayed AGC
for the RF tuner, an AFC drive circuit, and an output signal to
drive a tuning meter and/or provide stereo switching logic. In
addition, internal power-supply regulators maintain a nearly
constant current drain over the voltage supply range of
+8.5V to +16V.
The CA3189E is ideal for high-fidelity operation. Distortion in
a CA3189E FM-lF System is primarily a function of the
phase linearity characteristic of the outboard detector coil.
The CA3189E has all the features of the CA3089E plus addi-
tions. See CA3189E features compared to the CA3089E in
Table 1.
Pinout
CA3189
(PDIP)
TOP VIEW
Part Number Information
PART NUMBER
TEMP.
RANGE (
o
C)
PACKAGE
PKG.
NO.
CA3189E
-40 to 85
16 Ld PDIP
E16.3
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
IF IN
INPUT
BYPASS
FRAME
MUTE CONTROL
AUDIO OUT
IF OUT
AFC OUT
DELAYED AGC
SUBSTRATE (GND)
TUNING
METER OUT
MUTE LOGIC
V+
REF BIAS
QUADRATURE
INPUT
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
1-800-4-HARRIS or 407-727-9207
|
Copyright
Harris Corporation 1999
File Number
1046.4
[ /Title
(CA31
89)
/Sub-
ject
(FM
IF Sys-
tem)
/Autho
r ()
/Key-
words
(Har-
ris
Semi-
con-
ductor,
FM IF
ampli-
fier,
quadrat
ure
detec-
tor,
tuning
meter
out-
put,
lim-
iter,
AFC
circuit,
AGC
cir-
cuit,
mut-
ing cir-
cuit,
indus-
trial
tem-
pera-
CA3089E
POSOBSOLETE PRODUCT
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相關代理商/技術參數 |
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|---|---|
| CA3191E | 制造商:Harris Corporation 功能描述: |
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| CA3193 DIE | 制造商:Harris Corporation 功能描述: |
| CA3193AE | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:1.2MHz, BiCMOS Precision Operational Amplifiers |
| CA3193AS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
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