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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STV0118 датащи(PDF) 26 Page - STMicroelectronics |
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STV0118 датащи(HTML) 26 Page - STMicroelectronics |
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26 / 42 page  V.4 - AC Electrical Characteristics Tamb =25 °C/70°C, VDDA =VDD = 3.3V, unless otherwise specified Symbol Parameter Test Conditions Min. Typ. Max. Unit DIGITAL INPUT (YCRCB[7:0], HSYNC, VSYNC/ODDEVEN) tsu Input Data Set-up Time CKREF rising edge, CKREF = 27MHz 6 ns tho Input Data Hold Time CKREF rising edge, CKREF = 27MHz 3 ns ACTIVE PERIOD FOR NRESET tRSTL Input Low Time 200 ns REFERENCE CLOCK : CKREF 1/tC_REF Clock Frequency 27 MHz tD_REF Clock Duty Cycle 35* 65* % tR_REF Clock Rise Time 5 ns tF_REF Clock Fall Time 5ns I 2C CLOCK : SCL tC_SCL Clock Cycle Time Rpull_up = 4.7k Ω 2MHz tD_SCL Clock Duty Cycle 50 % tL_SCL LOW Level Cycle Rpull_up = 4.7k Ω 250 ns DIGITAL OUTPUTS td_HSYNC Delay Time CKREF rising edge CKREF = 27MHz, CL = 50pF 10 ns td_ODDEVEN Delay Time CKREF rising edge CKREF = 27MHz, CL = 50pF 10 ns * In case of double encoding these values must be compatible with the ycrcb transmitter. V - CHARACTERISTICS (continued) STV0118 26/42 |
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