CA2111A HARRIS [Harris Corporation], CA2111A Datasheet

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CA2111A

Manufacturer Part Number
CA2111A
Description
FM IF Amplifier-Limiter and Quadrature Detector
Manufacturer
HARRIS [Harris Corporation]
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CA2111AE
Manufacturer:
STK
Quantity:
6 219
Part Number:
CA2111AQ
Manufacturer:
NEC
Quantity:
74
May 1999
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
Features
• Input Limiting Voltage At 10.7MHz . . . . . . . . . . . 400 V
• Input Limiting Voltage At 4.5, 5.5MHz . . . . . . . . 250 V
• 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
• Extremely Low AFC Voltage Drift Over Full Operating
• Minimum Number of External Components Required
Applications
• FM IF Sound
• TV Sound IF
Pinout
Tuning
Temperature Range
DC FB BYPASS
INPUT BYPASS
©
Harris Corporation 1999
AUDIO OUT
REF BIAS
GROUND
IF IN
NC
1
2
3
4
5
6
7
TOP VIEW
CA2111A
(PDIP)
14
13
12
10
11
9
8
DE-EMPHASIS
V+
QUADRATURE INPUT
QUADRATURE IN BUF
HIGH IF OUTPUT
LOW IF OUTPUT
NC
8-13
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.
Part Number Information
Block Diagram
0.1 F
CA2111AE
PART NUMBER
51
0.1 F
4
6
5
CA2111A
+12V
RANGE (
BIAS
V+
13
10
-40 to 85
and Quadrature Detector
TEMP.
AMPLIFIER-
LIMITER
FM IF Amplifier-Limiter
3
11
o
C)
14
14 Ld PDIP
9
QUADRATURE
3pF
0.003 F
DETECTOR
PACKAGE
FOLLOWER
EMITTER
12
8
File Number
C
L
1
1
2
120pF
14 H
7
E14.3
PKG.
1
NO.
612.2

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CA2111A Summary of contents

Page 1

... 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. Part Number Information ...

Page 2

... Total Harmonic Distortion THD DYNAMIC CHARACTERISTICS f = 4.5MHz 25kHz 12V, FM Modulation Frequency = 400Hz, Source Resistance = 50 O Input Limiting Threshold Voltage V AM Rejection AMR CA2111A o Thermal Information C Thermal Resistance (Typical, Note 1) PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum Junction Temperature (Plastic Package 150 Maximum Storage Temperature Range . . . . . . . . . -65 o ...

Page 3

... NOTE: Input to the quadrature coil can be from either terminal 9 or terminal 10. Terminal 9 is normally used because it lessens the possibility of overloads during tuning. The use of terminal 10 increases the limiting sensitivity significantly and has been used successfully in these tests. CA2111A o C Unless Otherwise Specified (Continued) TEST CONDITIONS V ...

Page 4

... Typical Performance Curves REF. SIGNAL INPUT (TERM. 10 12V 100% FM, 30 4.5MHz REF. SIGNAL INPUT (TERM 0.1 1 INPUT SIGNAL VOLTAGE (V FIGURE 2. AM REJECTION vs INPUT VOLTAGE (AT 4.5MHz) CA2111A ...

Page 5

... REF. SIGNAL INPUT (TERM 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.1 1 INPUT VOLTAGE (V i FIGURE 6. DETECTED AUDIO OUTPUT vs INPUT VOLTAGE (AT 5.5MHz) 3.8 3.7 3.6 -50 0 -25 25 TEMPERATURE ( FIGURE 8. AFC VOLTAGE vs AMBIENT TEMPERATURE CA2111A (Continued) 1 SUPPLY VOLTAGE A 0 4.5MHz 25kHz 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 100 ) RMS FIGURE 5. DETECTED AUDIO OUTPUT vs INPUT VOLTAGE (4.5MHz) ...

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