Intersil Corporation CA3189 Datasheet

OBSOLETE PRODUCT

POSSIBLE SUBSTITUTE PRODUCT

CA3089E

CA3189

[ /Title
(CA31

89)
/Sub­ject
(FM
IF Sys­tem)
/Autho
r ()
/Key­words
(Har­ris
Semi­con­ductor,
FM IF
ampli­fier,
quadrat
ure
detec­tor,
tuning
meter
out­put,
lim­iter,
AFC
circuit,
AGC
cir­cuit,
mut­ing cir­cuit,
indus­trial
tem­pera-

May 1999

Features

• Includes IF Amplifier, Quadrature Detector, AF
Preamplifier, and Specific Circuits for AGC, AFC, Tun­ing Meter, Deviation-Noise Muting, and ON Channel
Detector

• FM IF Amplifier Applications in High-Fidelity,
Automotive, and Communications Receivers

• Exceptional Limiting Sensitivity -12µV (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 Programmab le 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

Pinout

IF IN

INPUT

BYPASS

FRAME

MUTE CONTROL

AUDIO OUT

AFC OUT

IF OUT

CA3189

TOP VIEW

1
2
3
4
5
6
7
8

FM IF System

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 desir­able 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 addi­tions. See CA3189E features compared to the CA3089E in
Table 1.

Part Number Information

TEMP.

PART NUMBER

CA3189E -40 to 85 16 Ld PDIP E16.3

(PDIP)

16

DELAYED AGC

15

SUBSTRATE (GND)

14

TUNING

13

METER OUT
MUTE LOGIC

12

V+

11

REF BIAS

10

QUADRATURE

9

INPUT

RANGE (oC) PACKAGE

PKG.

NO.

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

1

File Number 1046.4

CA3189

Absolute Maximum Ratings Thermal Information

DC Supply Voltage

(Between Terminals 11 and 4) . . . . . . . . . . . . . . . . . . . . . . . . 16V

(Between Terminals 11 and 14) . . . . . . . . . . . . . . . . . . . . . . . 16V

DC Current (Out of Terminal 15) . . . . . . . . . . . . . . . . . . . . . . . .2mA

Operating Conditions

Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTE:

1. θJA is measured with the component mounted on an evaluation PC board in free air.

Thermal Resistance (Typical, Note 1) θJA (oC/W)

PDIP Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Maximum Junction Temperature (Plastic Package) . . . . . . . .150oC

Maximum Storage Temperature Range . . . . . . . . . -65oC to 150oC

Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC

Electrical Specifications T

= 25oC, V+ = 12V

A

CIRCUIT

OR FIG.

PARAMETER SYMBOL TEST CONDITIONS

NO. MIN TYP MAX UNITS

DC SPECIFICATIONS

Quiescent Circuit Current I

No Signal Input, Non Muted 1, 2 20 31 40 mA

11

DC Voltages No Signal Input, Non Muted

Terminal 1 (IF Input) V
Terminal 2 (AC Return to Input) V
Terminal 3 (DC Bias to Input) V
Terminal 15 (RF AGC) V
Terminal 10 (DC Reference) V

1

2

3

15

10

1, 2 1.2 1.9 2.4 V
1, 2 1.2 1.9 2.4 V
1, 2 1.2 1.9 2.4 V
1, 2 7.5 9.5 11 V
1, 2 5 5.6 6 V

DYNAMIC SPECIFICATIONS

Input Limiting Voltage (-3dB Point) VI(lim) fO = 10.7MHz,

f

. = 400Hz,

AM Rejection (Terminal 6) AMR VIN = 0.1V,

MOD

Deviation ±75kHz

1, 2 - 12 25 µV
1, 2 45 55 - dB

AM Mod. = 30%

Recovered AF Voltage (Terminal 6) VO(AF) 1, 2 325 500 650 mV
Total Harmonic Distortion (Note 2)

Single Tuned (Terminal 6) THD VIN = 0.1V 1 - 0.5 1 %
Double Tuned (Terminal 6) THD 2 - 0.1 - %

Signal Plus Noise to Noise Ratio

S + N/N VIN = 0.1V 1, 2 65 72 - dB

(Terminal 6)
Deviation Mute Frequency f
RF AGC Threshold V
On Channel Step V

DEV

16

VIN = 0.1V f

12

f

= 0 1, 5, 6 - ±40 - kHz

MOD

1, 2 - 1.25 - V

< ±40kHz 1 - 0 - V

DEV

f

> ±40kHz 1 - 5.6 - V

DEV

NOTE:

2. THD characteristics are essentially a function of the phase characteristics of the network connected between Terminals 8, 9, and 10.

2

CA3189

TABLE 1. CA3189E FEATURES COMPARED TO CA3089E

FEATURES CA3189E CA3089E

Low Limiting Sensitivity (12µV Typ) Yes Yes
Low Distortion Yes Yes
Single-Coil Tuning Capability Yes Yes
Programmable Audio Level Yes No
S/N Mute Yes Yes
Deviation Mute Yes No
Flexible AFC Yes Yes
Programmable AGC Threshold and Voltage Yes No
Typical S + N/N > 70 dB Yes No
Meter Drive Voltage Depressed at Very Low Signal Levels Yes No
On-Channel Step Control Voltage Yes No

Test Circuits

L

(NOTE

SIGNAL

INPUT

VOLTAGE

PIN 13

0.01µF

0.02

TO

µF

47K

0.05µF

51

V+ = 12V

22µH

11

8

1

3

0.01

µF
2

16

14

4

10

TUNING METER

9

CA3189E

15

0.01

µF

K

4)

C

100

pF

3.9K

13

8.2K

10

0.01

µF

33K

150µA
FULL
SCALE

10µF

10µF

5K

AFC

7

OUT
6

C

(NOTE

12

5

5)

1µF

22K

AUDIO
OUT

470

0.33µF

10K

NOTES:

3. All resistance values are in ohms.

4. L tunes with 100pF (C) at 10.7MHz. Q0 (unloaded)≅ 75 (T OKO No .
KACS K586HM or equivalent).

5. C = 0.01µF for 50µs deemphasis (Europe).
C = 0.015µF for 75µs deemphasis (USA).

FIGURE 1. TEST CIRCUIT FOR CA3189E USING A SINGLE-

TUNED DETECTOR COIL

3K

100

pF
C

1

100

8.2K

µF

C

2

pF

13

T (NOTE 7)

8.2K

10

5

0.01

µF

33K

150µA
FULL
SCALE

12

22K

7

6

1µF

10µF

AFC

5K

OUT

(NOTE 9)

470

10K

C

AUDIO
OUT

0.33µF

SIGNAL

INPUT

VOLTAGE

PIN 13

0.01µF

0.02

TO

0.05µF

µF

47K

V+ = 12V

11

1

51

3

0.01

µF

2

16

4

TUNING METER

22µH

8

CA3189E

15

14

10

K

9

0.01

NOTES:

6. All resistance values are in ohms.

7. T: PRI. - Q0 (unloaded) ≅ 75 (tunes with 100pF (C1) 20↑ of 34e on

7

/32” dia. form. SEC. - Q0 (unloaded) ≅ 75 (tunes with 100pF (C2)
20↑ of 34e on7/32” dia. form. kQ (percent of critical coupling) ≅
70% (Adjusted for coil voltage (VC) = 150mV).

8. Above values permit proper operation of mute (squelch) circuit
“E” type slugs, spacing 4mm.

9. C = 0.01µF for 50µs deemphasis (Europe) C = 0.015µF for 75µs
deemphasis (USA).

FIGURE 2. TEST CIRCUIT FOR CA3189E USING A DOUBLE-

TUNED DETECTOR COIL

10µF

3