Texas Instruments TMS320DM355 warranty Uni, MXI/CLKIN CLKOUT1

TMS320DM355

Digital Media System-on-Chip (DMSoC)

www.ti.com

SPRS463A –SEPTEMBER 2007 –REVISED SEPTEMBER 2007

Table 5-7. Switching Characteristics Over Recommended Operating Conditions for CLKOUT1(1) (2) (see

Figure 5-9)

NO.		PARAMETER		DM355		UNI
			MIN	TYP	MAX	T
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
5	td(MXI1H-	Delay time, MXI1/CLKIN1 high to CLKOUT1 high	1		8	ns
	CLKOUT1H)
6	td(MXI1L-	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.

56

MXI/CLKIN

2

1

CLKOUT1

4

PRODUCT PREVIEW

3

4

Figure 5-9. CLKOUT1 Timing

Table 5-8. Switching Characteristics Over Recommended Operating Conditions for CLKOUT2(1) (2) (see

Figure 5-10)

NO.		PARAMETER		DM355		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
5	td(MXI1H-	Delay time, MXI1/CLKIN1 high to CLKOUT2 high	1		8	ns
	CLKOUT2H)
6	td(MXI1L-	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.

MXI/CLKIN
5
6
2	4
1
CLKOUT2
3	4
Figure 5-10. CLKOUT2 Timing
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