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CA3088E Schematic ( PDF Datasheet ) - Harris Corporation

Teilenummer CA3088E
Beschreibung AM Receiver Subsystem and General-Purpose Amplifier Array
Hersteller Harris Corporation
Logo Harris Corporation Logo 




Gesamt 4 Seiten
CA3088E Datasheet, Funktion
May 1999
CA3088ENO
Call
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AM Receiver Subsystem and
General-Purpose Amplifier Array
[ /Title
(CA30
Features
• Excellent Overload Characteristics
88E)
• AGC for IF Amplifier
/Sub-
• Buffered Output Signal for Tuning Meter
ject • Internal Zener Diode Provides Voltage Regulation
w(RwAewMc.DeaivtaSheet4U.Tcwomo IF Amplifier Stages
er Sub-
• Low-Noise Converter and First IF Amplifier
sys-
• Low Harmonic Distortion (THD)
tem • Delayed AGC for RF Amplifier
and
Gen-
eral-
Pur-
pose
Ampli-
fier
Array)
/Autho
r ()
/Key-
• Terminals for Optional Inclusion of Tone Control
• Operates from Wide Range of Power Supplies:
V+ = 6V to 16V
• Optional AC and/or DC Feedback on Wide-Band
Amplifier
• Array of Amplifiers for General-Purpose Applications
• Suitable for Use With Optional External RF Stage,
Either MOS or Bipolar
• Related at:
- Refer to AN6022 for Application Note Information
words Part Number Information
()
/Cre-
ator ()
/DOCI
PART NUMBER
CA3088E
TEMP.
RANGE (oC)
PACKAGE
-40 to 85 16 Ld PDIP
PKG.
NO.
E16.3
Description
The CA3088E, a monolithic integrated circuit, is an AM sub-
system that provides the converter, IF amplifier, detector,
and audio preamplifier stages for an AM receiver.
The CA3088E also provides internal AGC for the first IF
amplifier stage, delayed AGC for an optional external RF
amplifier, a buffer stage to drive a tuning meter, and termi-
nals facilitating the optional use of a tone control.
Figure 2 is a functional diagram of the CA3088E. The signal
from the low-noise converter is applied to the first IF ampli-
fier and is then coupled to the second IF amplifier. This IF
signal is then detected and externally filtered. The resultant
audio signal is applied to an audio preamplifier. Optionally, a
tone control circuit may be connected at the junction of the
detector circuit and the audio preamplifier. The gain of the
first IF amplifier stage is controlled by an internal AGC cir-
cuit. The CA3088E supplies a delayed AGC signal output for
use with an external RF amplifier. A buffered output signal is
also available for driving a tuning meter. A DC voltage, inter-
nally regulated by a Zener diode, supplies the second IF
amplifier, the AGC and tuning meter circuits and may also be
used with any other stage.
The CA3088E features four independent transistor amplifi-
ers, each incorporating internal biasing for temperature
tracking. These amplifiers are particularly useful in general-
purpose amplifier, oscillator, and detector applications in a
wide variety of equipment designs.
NFO
pdf-
mark
Pinout
CA3088E
(PDIP)
[ TOP VIEW
/Page-
Mode
/Use-
Out-
lines
/DOC-
VIEW
pdf-
mark
CONV. BYPASS 1
CONV. IN 2
CONV. OUT 3
1ST IF IN 4
GND 5
1ST IF OUT 6
2ND IF FB 7
2ND IF IN 8
16 AUDIO V+
15 AUDIO OUT
14 AUDIO IN
13 RF AGC
12 TUNING METER
11 AGC FILTER
10 2ND IF V+
9 DET. OUT
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © Harris Corporation 1999
8-23
File Number 560.2





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