All Harris semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification.

Harris semiconductor products are sold by description only. Harris Semiconductor Communications Division reserves the right to make changes in circuit design

and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information fur-

nished by Harris is believed to be accurate and reliable. However, no responsibility is assumed by Harris or its subsidiaries for its use; nor for any infringements

of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Har-

ris or its subsidiaries.

For information regarding Harris’ Semiconductor Communications Division and its products, call 1-800-4-HARRIS or see web

site http://www.semi.harris.com

Sales Office Headquarters

NORTH AMERICA

Harris Semiconductor

Communications Division

P. O. Box 883, Mail Stop 53-210

Melbourne, FL 32902

TEL: 1-800-442-7747

(407) 727-9207

FAX: (407) 724-3973

EUROPE

Harris Semiconductor

Communications Division

Mercure Center

100, Rue de la Fusee

1130 Brussels, Belgium

TEL: (32) 2.724.2111

FAX: (32) 2.724.22.05

ASIA

Harris Semiconductor

Communications Division

Taiwan Limited.

7F-6, No. 101 Fu Hsing North Road

Taipei, Taiwan

Republic of China

TEL: (886) 2 2716 9310

FAX: (886) 2 2715 3029

8

o

Typical Performance Curves

FIGURE 4. MUTING ACTION, TUNER AGC, AND TUNING

METER OUTPUT vs INPUT SIGNAL VOLTAGE

FIGURE 5. AFC CHARACTERISTICS (CURRENT AT

TERMINAL 7 vs CHANGE IN FREQUENCY)

FIGURE 6. DEVIATION MUTE THRESHOLD vs LOAD

RESISTANCE (BETWEEN TERMINAL 7 AND

TERMINAL 10)

FIGURE 7. TYPICAL LIMITING AND NOISE CHARACTERISTICS

INPUT SIGNAL (

µV)

SEE FIGURE 1

RECOVERED AUDIO FROM FULL

OUTPUT (LEFT COORDINATE)

TUNER AGC DC

VOLTAGE AT TERM. 15

(RIGHT COORDINATE)

(PIN 15 TO PIN 13)

VOLTAGE AT TERM. 13

METER CIRCUIT (33k

Ω

TO GND) (RIGHT

COORDINATE)

1

10

100K

10K

1K

100

4

2

6

8

10

12

0

-10

-20

-30

-40

-50

-60

-100

CHANGE IN FREQUENCY (kHz)

-50

0

50

100

-150

-100

-50

0

50

100

150

150

200

µA

5k

Ω

10

7

SEE FIGURE 1

LOAD RESISTANCE (BETWEEN TERM. 7 AND TERM. 10) (k

Ω)

0

5

10152025

140

120

100

80

60

40

20

SIGNAL LEVEL (

µV)

SIGNAL (DEVIATION =

±75kHz)

10

1

-80

-70

-60

-50

-40

-30

-20

-10

0

NOISE

CA3189E ONLY

CA3189E PRECEDED BY

FILTER AND GAIN STAGE

CA3189E PRECEDED BY

2 FILTER AND GAIN STAGES

CA3189