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June 2004

M3004LD

REMOTE CONTROL TRANSMITTER

REV. 2

FEATURES SUMMARY

ADDRESS

COMPONENTS

BITS

SUPPLY

FREQUENCY (typ. 450kHz)

DESCRIPTION

The M3004LD transmitter IC is designed for infra-

red remote control systems. It has a total of 448

commands which are divided into 7 sub-system

groups with 64 commands each. The sub-system

code may be selected by a press button, a slider

switch or hard wired.

The M3004LD generates the pattern for driving the

output stage. These patterns are pulse distance

coded. The pulses are infrared flashes or modulat-

ed. The transmission mode is defined in conjunc-

tion with the sub-system address. Modulated

pulses allow receivers with narrow-band preampli-

fiers for improved noise rejection to be used.

Flashed pulses require a wide-band preamplifier

within the receiver.

Figure 1. Package

Figure 2. Pin Connection

SO20

(Plastic Package)

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

REMO

SEN 6N

SEN 5N

SEN 4N

SEN 3N

SEN 2N

SEN 1N

SEN 0N

ADRM

DRV 6N

DRV 6N

DRV 6N

DRV 6N

DRV 6N

DRV 6N

DRV 6N

OSC OUT

OSC IN