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RT8750 데이터시트(PDF) 2 Page - Richtek Technology Corporation |
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RT8750 데이터시트(HTML) 2 Page - Richtek Technology Corporation |
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2 / 21 page ![]() 2 RT8750 www.richtek.com DS8750-01 April 2011 Typical Application Circuit Serial Data Setup Timing Figure 1. Input Setting of Serial Data Figure 2. Timing for Writing Serial Data D15 D14 D13 D12 D11 D10 D9D8 D7D6D5 D4D3 D2D1D0 16 bits CS SDAT SCLK <Timing of writing data to internal register> 16 bits of data sent after a rising edge of CS are latched and written to an internal register on a falling edge of CS. 50% D15 D14 D13 D2 D1 D0 D15 D14 D13 50% 50% 50% Tsetc 30n Tsets 200n Sclk Testd 60n Tholdd 20n 50% Tholds 100n Tnegs 200n Tholdc 30n CS SDAT SCLK FS : Full-swing CV : Constant Voltage CC : Constant Current RT8750 VCC OUT1B OUT2A OUT3B OUT2B IN2 IN3 PI1 VM RNF4 OUT4B CS OUT3A OUT5A PI2 15 14 13 12 17 18 19 20 1 2 3 4 9 8 7 6 11 5 IN1 16 OUT1A SDAT SCLK 10 OUT4A VCC Power Supply AutoFocus ( STM-1 ) ZOOM/IRIS ( STM-2 ) ZOOM/IRIS ( DCM ) ZOOM/IRIS ( DCM ) Shutter ( COIL ) VM Power Supply Parallel Control Signal Serial Control Signal MCU 10µF 10µF GND 21 (Exposed Pad) RNF |
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