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M3004LDT Datasheet(PDF) 1 Page - STMicroelectronics |
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M3004LDT Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 14 page  1/14 June 2004 M3004LD REMOTE CONTROL TRANSMITTER REV. 2 FEATURES SUMMARY ■ FLASHED OR MODULATED TRANSMISSION ■ 7 SUB-SYSTEM ADDRESSES ■ UP TO 64 COMMANDS PER SUB-SYSTEM ADDRESS ■ HIGH-CURRENT REMOTE OUTPUT AT VDD = 6V (–IOH = 80mA) ■ LOW NUMBER OF ADDITIONAL COMPONENTS ■ 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) 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 VDD VSS DRV 6N DRV 6N DRV 6N DRV 6N DRV 6N DRV 6N DRV 6N OSC OUT OSC IN |
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