The SL486 is a high gain preamplifier designed to form an

interface between an infra-red receiving diode and the digital input

of remote control receiving circuits. The device contains two other

circuit elements, one to provide a stretched output pulse facility

and a voltage regulator to allow operation from a wide range of

supplies.

FEATURES

Environments

Stability

High Brightness Background Light Levels

Decoders

of Power Supplies

3055-2.2

SL486

INFRA RED REMOTE CONTROL PREAMPLIFIER

Fig. 2 SL486 block diagram

ORDERING INFORMATION

SL486 NA DP

SL486 NA MP

DIODE CATHODE

GYRATOR C2

GYRATOR C1

2ND STAGE DECOUPLE

4TH STAGE DECOUPLE

AGC DECOUPLE

DIODE ANODE

1ST STAGE DECOUPLE

STRETCH OUTPUT

STRETCH INPUT

OUTPUT

SL486

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

DP16

MP16

1

1

2

5mA

5mA

0

°C to 170°C

2

55

°C to1150°C

ABSOLUTE MAXIMUM RATINGS

Output current

Stretch output current

Operating temperature range

Storage temperature

5·4k

2·4k

GYRATOR

DIFFERENTIAL

INPUT STAGE

DIODE

CATHODE

DIODE

ANODE

BUFFER

15k

AGC PEAK

DETECTOR

REGULATOR

PULSE

STRETCH

1

16

14

15

8

12

13

1ST STAGE

DECOUPLE

AGC

DECOUPLE

REGULATOR

INPUT

9

10

11

OUTPUT

STRETCH

INPUT

STRETCH

OUTPUT

4TH STAGE

DECOUPLE

7

6

2ND STAGE

DECOUPLE

5

2

3

GYRATOR

C1

C2

4

(see Application Notes).

Fig. 1 Pin connections - top view

(Supersedes version in April 1994 Consumer IC Handbook, HB3120 - 2.0)