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CA2111 датащи(PDF) 1 Page - Intersil Corporation

номер детали CA2111
подробное описание детали  FM IF Amplifier-Limiter and Quadrature Detector
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производитель  INTERSIL [Intersil Corporation]
домашняя страница  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

CA2111 датащи(HTML) 1 Page - Intersil Corporation

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8-13
May 1999
CA2111A
FM IF Amplifier-Limiter
and Quadrature Detector
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
© Harris Corporation 1999
File Number
612.2
Features
• Input Limiting Voltage At 10.7MHz . . . . . . . . . . . 400
µV
• Input Limiting Voltage At 4.5, 5.5MHz . . . . . . . . 250
µV
• Typical AM Rejection At 10.7MHz. . . . . . . . . . . . . 45dB
• Provision for Output from 3-Stage IF Amplifier Section
• Low Harmonic Distortion
• Quadrature Detection Permits Simplified Single-Coil
Tuning
• Extremely Low AFC Voltage Drift Over Full Operating
Temperature Range
• Minimum Number of External Components Required
Applications
• FM IF Sound
• TV Sound IF
Description
The CA2111A provides a multistage wideband amplifier-
limiter, a quadrature detector, and an emitter-follower output
stage. This device is designed for use in FM receivers and in
the sound IF sections of TV receivers. In addition, an output
terminal is provided which allows the use of the amplifier-
limiter as a straight 60dB wideband amplifier.
The amplifier-limiter features the excellent limiting character-
istic of 3 cascaded differential amplifiers. The quadrature
detector requires only one coil in the associated outboard
circuit and therefore, tuning is a simple procedure.
A unique feature of the CA2111A is its exceptionally low
AFC voltage drift over the full operating-temperature range.
Pinout
CA2111A
(PDIP)
TOP VIEW
Block Diagram
Part Number Information
PART NUMBER
TEMP.
RANGE (oC)
PACKAGE
PKG.
NO.
CA2111AE
-40 to 85
14 Ld PDIP
E14.3
AUDIO OUT
REF BIAS
NC
IF IN
DC FB BYPASS
INPUT BYPASS
GROUND
DE-EMPHASIS
V+
QUADRATURE INPUT
QUADRATURE IN BUF
HIGH IF OUTPUT
LOW IF OUTPUT
NC
1
2
3
4
5
6
7
14
13
12
11
10
9
8
2
3
4
5
6
8
9
10
AMPLIFIER-
LIMITER
QUADRATURE
DETECTOR
13
V+
11
12
14
EMITTER
FOLLOWER
1
L1
C1
120pF
14
µH
3pF
0.003
µF
0.1
µF
0.1
µF
51
BIAS
+12V
7
[ /Title
(CA21
11A)
/Sub-
ject
(FM
IF
Ampli-
fier-
Limiter
and
Quadra
ture
Detec-
tor)
/Autho
r ()
/Key-
words
(Har-
ris
Semi-
con-
ductor,
FM IF
ampli-
fier,
quadrat
ure
detec-
tor,
lim-
iter,
TV
audio
IF,
high
AM
rejec-
tion,
OBSOLETE
PRODUCT
NO RECOMMENDED
REPLA
CEMENT
Call
Central
Applications
1-800-442-7747
or email:
centapp@harris.com


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