TMS320VC5505 datasheet(65/135 Pages) TI

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CLKOUT

TMS320VC5505

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SPRS503B – JUNE 2009 – REVISED JANUARY 2010

Table 6-5. Switching Characteristics Over Recommended Operating Conditions for CLKOUT(1) (2)

(see Figure 6-8)

CVDD = 1.05 V

CVDD = 1.3 V

NO.

PARAMETER

UNIT

MIN

MAX

MIN

MAX

tc(CLKOUT)

Cycle time, CLKOUT

16.67

tw(CLKOUTH)

Pulse duration, CLKOUT high

7.497

9.163

4.5

5.5

tw(CLKOUTL)

Pulse duration, CLKOUT low

7.497

9.163

4.5

5.5

tt(CLKOUTR)

Transition time (rise), CLKOUT(3)

tt(CLKOUTF)

Transition time (fall), CLKOUT(3)

(1)

The reference points for the rise and fall transitions are measured at VOL MAX and VOH MIN.

(2)

P = 1/SYSCLK clock frequency in nanoseconds (ns). For example, when SYSCLK frequency is 100 MHz, use P = 10 ns.

(3)

Transition time is measured with the slew rate set to FAST and DVDDIO = 1.65 V. (For more detailed information, see the Section 4.6.5 ,

Output Slew Rate Control Register (OSRCR) [1C16h].).

Figure 6-8. CLKOUT Timing

Peripheral Information and Electrical Specifications

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