SM5021B Advanced Analogic Technologies, Inc., SM5021B Datasheet
SM5021B
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SM5021B Summary of contents
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S H Microelectronics Corp GENERAL DESCRIPTION The SM5021A infrared remote control encoder utilizing CMOS technology. Mode signal-key ...
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S H Microelectronics Corp BLOCK DIAGRAM OSC1 XTAL OSC OSC2 Key In Latcg And Error Detect PIN DESCRIPTION Pin Name C1, Vss OSC1 OSC2 DOUT LEDO ...
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S H Microelectronics Corp FUNCTION DESCRIPTION A. Encoder Singal Output Format Bit Format SYSCK / 192 Logic 1 is Logic 0 is EMPTY Frame Format There are four frames, encoder generates during sending. Each frame contains four ...
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S H Microelectronics Corp Transmission Timing Key In t1 OSC LED DOUT * t1: Key pressing > 32ms * t2: Transmission time t3 + 108ms ( Four frame ) over t3 + 108ms, ...
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S H Microelectronics Corp SM5021A Transmission Waveform Normal Condition Key 1 Key2 OSC LED DOUT F1 F2 Overlap Condition If more than one key is pressed, transmission stops. Key 1 Key2 OSC LED DOUT F1 F2 ...
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... S H Microelectronics Corp SM5021B Transmission Waveform Normal Condition Key 1 Key2 OSC LED DOUT F1 F2 Overlap Condition If more than one key is pressed, multi-key data transmission. Key 1 t > 32ms Key2 OSC LED K1 K1 DOUT ...
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S H Microelectronics Corp ABSOLUTE MAXIMUM RATINGS Parameter Supply Voltage Input Voltage Output Voltage Maximum Power Consumption Operating Temperature Storage Temperature DC ELECTRICAL CHARACTERISTICS Parameter Supply Voltage Stand-by Current Input High Level Input Low Level DOUT Source ...
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S H Microelectronics Corp APPLICATION CIRCUIT BT JP1 3V JP2 C1 10u C1 VDD C2 DOUT K1 LEDO K2 OSC2 K3 OSC1 Vss K6 SM5021 Page 8 SM5021 ENCODER R2 4.7 Ω D2 ...