M3004LAB1 Datasheet, PDF (1/10 Pages) STMicroelectronics – REMOTE CONTROL TRANSMITTER

M3004LAB1
M3004LD
REMOTE CONTROL TRANSMITTER
. _{FLASHED OR MODULATED TRANSMISSION}
. _{7 SUB-SYSTEM ADDRESSES}
. _{UP TO 64 COMMANDS PER SUB-SYSTEM}
ADDRESS
. HIGH-CURRENT REMOTE OUTPUT AT
V_DD = 6V (– I_OH = 80mA)
. LOW NUMBER OF ADDITIONAL COMPO-
NENTS
. KEY RELEASE DETECTION BY TOGGLE
BITS
. _{VERY LOW STAND-BY CURRENT (< 2µA)}
. _{OPERATIONAL CURRENT < 1mA AT 6V}
SUPPLY
. _{SUPPLY VOLTAGE RANGE 2 TO 6.5V}
. _{CERAMIC RESONATOR CONTROLLED}
FREQUENCY (typ. 450kHz)
DIP20
(Plastic Package)
ORDER CODE : M3004LAB1
SO20
(Plastic Package)
ORDER CODE : M3004LD
PIN CONNECTIONS
DESCRIPTION
The M3004LAB1/M3004LD transmitter IC are de-
signed for infrared 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 but-
ton, a slider switch or hard wired.
The M3004LAB1/M3004LD generate the pattern
for driving the output stage. These patterns are
pulse distance coded. The pulses are infrared
flashes or modulated. The transmission mode is
defined in conjunction with the sub-system ad-
dress. Modulated pulses allow receivers with nar-
row-band preamplifiers for improved noise
rejection to be used. Flashed pulses require a
wide-band preamplifier within the receiver.
June 1992
REMO
1
SEN 6N
2
SEN 5N
3
SEN 4N
4
SEN 3N
5
SEN 2N
6
SEN 1N
7
SEN 0N
8
ADRM
9
V_SS
10
20
V_DD
19
DRV 6N
18
DRV 6N
17
DRV 6N
16
DRV 6N
15
DRV 6N
14
DRV 6N
13
DRV 6N
12
OSC OUT
11
OSC IN
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