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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TMS320DM643 датащи(PDF) 83 Page - Texas Instruments |
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TMS320DM643 датащи(HTML) 83 Page - Texas Instruments |
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83 / 162 page  www.ti.com CLKIN 2 3 4 4 5 1 CLKOUT4 1 2 3 3 TMS320DM643 Video/Imaging Fixed-Point Digital Signal Processor SPRS269C – FEBRUARY 2005 – REVISED JANUARY 2007 Figure 5-13. CLKIN Timing Table 5-15. Switching Characteristics Over Recommended Operating Conditions for CLKOUT4 (1) (2) (3) (see Figure 5-14) –500 –600 NO. PARAMETER UNIT CLKMODE = x1, x6, x12 MIN MAX 1 tw(CKO4H) Pulse duration, CLKOUT4 high 2P – 0.7 2P + 0.7 ns 2 tw(CKO4L) Pulse duration, CLKOUT4 low 2P – 0.7 2P + 0.7 ns 3 tt(CKO4) Transition time, CLKOUT4 1 ns (1) The reference points for the rise and fall transitions are measured at VOL MAX and VOH MIN. (2) PH is the high period of CLKIN in ns and PL is the low period of CLKIN in ns. (3) P = 1/CPU clock frequency in nanoseconds (ns) Figure 5-14. CLKOUT4 Timing Submit Documentation Feedback DM643 Peripheral Information and Electrical Specifications 83 |
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