SM5028RF SamHop Microelectronics Corp., SM5028RF Datasheet
SM5028RF
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SM5028RF Summary of contents
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... The information in this document is subject to change without notice. c SAMHOP Microelectronics Corp. All Rights Reserved. 台北縣新店市民權路 號 樓 100 7 7F,No.100,Min-Chyuan Road, Hsintien, Taipei Hsien, Taiwan, R.O.C. TEL: 886-2-2218-3978/2820 FAX: 886-2-2218-3320 Email : info@samhop.com.tw SM5028RF ENCODER REV. 1.20 Page 1 ...
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... SAMHOP Microelectronics Corp ENCODER 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 12 2 codes. SM5028RF/SM5038RF pair is suitable for use on remote controller. APPLICATION * Car Security * Garage Door ...
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... SAMHOP Microelectronics Corp ENCODER BLOCK DIAGRAM OSC2 OSC1 TE OSCILLATOR TRANSMISSION GATE CIRCUIT A11/D0 A10/D1 A9/D2 A8/D3 ÷3 DIVIDER ÷12 COUNTER & DECODER BINARY DETECTOR VDD Page 3 SM5028RF DOUT DATA SELECT & BUFFER SYNC. CIRCUIT VSS V1.20 ...
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... Address input , each pin can be set to I "0' , "1" Negative power supply. POWER I I Address/data input Enables transmission Resistor connected between these two pins determine the system clock. I Serial output of encoded signals. O Positive power supply. POWER Page 4 SM5028RF FUNCTION V1.20 ...
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... 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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... SAMHOP Microelectronics Corp ENCODER 2. 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 (SM5038RF decoder OSCD Page 6 ...
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... Conditions load F = 24KHZ 12V OSC 3V Oscillator stops 12V VDH = 0.9VDD ( SOURCE) 5V VOL = 0.1VDD (Sink) Ω ROSC = 12V 12V Page 7 SM5028RF Ratings Unit -0.3~13 V Vss-0.3~V +0 Vss-0.3~V +0 500 mW -20~ -40~125 o C Limits Unit Min. Typ. Max ...
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... SAMHOP Microelectronics Corp ENCODER APPLICATION CIRCUIT Dout ROSC A2 OSC1 A3 OSC2 A11/D0 A6 A10/D1 A7 A9/D2 Vss A8/D3 SM5028RF Page 8 SM5028RF ANT GND V1.20 ...
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... SAMHOP Microelectronics Corp ENCODER ORDERING INFORMATION Part NO. SM5028RF SM5028 XX xxx xx Package 18Pin DIP Page 9 SM5028RF Part NO. Package SM5028S 20Pin SOP Logo Product No. RF:DIP TYPE S:SO Package Serial Number Date Code ESD Protection Mark V1.20 ...