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TMS320DM355 Datasheet(PDF) 101 Page - Texas Instruments |
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TMS320DM355 Datasheet(HTML) 101 Page - Texas Instruments |
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101 / 153 page  www.ti.com CLKOUT1 1 2 4 4 MXI/CLKIN 5 6 3 MXI/CLKIN CLKOUT2 1 2 3 4 5 6 4 TMS320DM355 Digital Media System-on-Chip (DMSoC) SPRS463 – SEPTEMBER 2007 Table 5-7. Switching Characteristics Over Recommended Operating Conditions for CLKOUT1(1)(2) (see Figure 5-9) DM355 UNI NO. PARAMETER T MIN TYP MAX 1 tC(CLKOUT1) Cycle time, CLKOUT1 tc(MXI1) ns 2 tw(CLKOUT1H) Pulse duration, CLKOUT1 high 0.45P 0.55P ns 3 tw(CLKOUT1L) Pulse duration, CLKOUT1 low 0.45P 0.55P ns 4 tt(CLKOUT1) Transition time, CLKOUT1 0.05P ns td(MXI1H- 5 Delay time, MXI1/CLKIN1 high to CLKOUT1 high 1 8 ns CLKOUT1H) td(MXI1L- 6 Delay time, MXI1/CLKIN1I low to CLKOUT1 low 1 8 ns CLKOUT1L) (1) The reference points for the rise and fall transitions are measured at VOL MAX and VOHMIN. (2) P = 1/CLKOUT1 clock frequency in nanoseconds (ns). For example, when CLKOUT1 frequency is 24 MHz use P = 41.6 ns. Figure 5-9. CLKOUT1 Timing Table 5-8. Switching Characteristics Over Recommended Operating Conditions for CLKOUT2(1)(2) (see Figure 5-10) DM355 NO. PARAMETER UNIT MIN TYP MAX 1 tC(CLKOUT2) Cycle time, CLKOUT2 tc(MXI1) /3 2 tw(CLKOUT2H) Pulse duration, CLKOUT2 high 0.45P 0.55P ns 3 tw(CLKOUT2L) Pulse duration, CLKOUT2 low 0.45P 0.55P ns 4 tt(CLKOUT2) Transition time, CLKOUT2 0.05P ns td(MXI1H- 5 Delay time, MXI1/CLKIN1 high to CLKOUT2 high 1 8 ns CLKOUT2H) td(MXI1L- 6 Delay time, MXI1/CLKIN1 low to CLKOUT2 low 1 8 ns CLKOUT2L) (1) The reference points for the rise and fall transitions are measured at VOL MAX and VOHMIN. (2) P = 1/CLKOUT2 clock frequency in nanoseconds (ns). For example, when CLKOUT2 frequency is 8 MHz use P = 125 ns. Figure 5-10. CLKOUT2 Timing Submit Documentation Feedback Peripheral Information and Electrical Specifications 101 |
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