SM5028 SAMHOP [SamHop Microelectronics Corp.], SM5028 Datasheet
SM5028
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SM5028 Summary of contents
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... S H Microelectronics Corp GENERAL DESCRIPTION SM5028RF remote control encoder paired with SM5038RF. It utilizes CMOS technology. The chip has 12 bits of 2-state address pins that provides 2 codes. SM5028RF/SM5038RF pair is suitable for use on remote controller. ...
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... S H Microelectronics Corp BLOCK DIAGRAM OSC2 OSC1 TE OSCILLATOR TRANSMISSION GATE CIRCUIT A11/D0 A10/D1 A9/D2 A8/D3 ÷ 3 DIVIDER ÷ 12 COUNTER & DECODER BINARY DETECTOR Page 2 SM5028RF ENCODER DOUT DATA SELECT & BUFFER SYNC. CIRCUIT VDD VSS V1.0 ...
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... Address input , each pin can be I set to "0' , "1" Negative power supply. POWER I I Address/data input Enables transmission. I Resistor connected between O these two pins determine the I system clock. O Serial output of encoded signals. POWER Positive power supply. Page 3 SM5028RF ENCODER FUNCTION V1.0 ...
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... Encoder Dout 4 words SM5028RF begin a 4-word transmission cycle upon receipt of a transmission enable (TE active low). This cycle will repeat itself as long as the transmission enable (TE is held low). Once the transmission enable returns high the encoder output completes its final cycle and then stops as shown below. ...
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... S H Microelectronics Corp OSC Frequency SM5028RF's oscillator can be constructed by connecting a resistor between OSC1 and OSC2 pin. Encoder OSC Frequency KHz The recommended oscillator frequency is F encoder) ...
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... Topr Tstg Test Condition V DD Conditions DD No load 24KHZ 12V OSC 3V Oscillator stops 12V VDH = 0.9VDD ( SOURCE) 5V VOL = 0.1VDD (Sink ROSC = Page 6 SM5028RF ENCODER Ratings -0.3~13 Vss-0.3~V +0.3 DD Vss-0.3~V +0.3 DD 500 -20~70 -40~125 Limits Min. Typ. Max 150 - 0.1 ...
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... S H Microelectronics Corp APPLICATION CIRCUIT Dout ROSC A2 OSC1 A3 OSC2 A11/D0 A6 A10/D1 A7 A9/D2 Vss A8/D3 SM5028RF Page 7 SM5028RF ENCODER ANT GND V1.0 ...
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... S H Microelectronics Corp ORDERING INFORMATION Part NO. Package SM5028RF 18Pin DIP SM5028 XX Part NO. SM5028S xxx xx Page 8 SM5028RF ENCODER Package 20Pin SOP Logo Product No. RF:DIP TYPE S:SO Package Serial Number Date Code ESD Protection Mark V1 ...