Texas Instruments TMS320C6712D - Manual (Page 69)

TMS320C6712D
FLOATINGĆPOINT DIGITAL SIGNAL PROCESSOR
SPRS293A − OCTOBER 2005 − REVISED NOVEMBER 2005
69 POST OFFICE BOX 1443
•
HOUSTON, TEXAS 77251−1443
INPUT AND OUTPUT CLOCKS (CONTINUED)
switching characteristics over recommended operating conditions for ECLKOUT †‡§
(see Figure 25)
NO. PARAMETER
−150
UNIT NO. PARAMETER
MIN MAX
UNIT
1 tc(EKO) Cycle time, ECLKOUT E − 0.9 E + 0.9 ns
2 tw(EKOH) Pulse duration, ECLKOUT high EH − 0.9 EH + 0.9 ns
3 tw(EKOL) Pulse duration, ECLKOUT low EL − 0.9 EL + 0.9 ns
4 tt(EKO) Transition time, ECLKOUT 2 ns
5 td(EKIH-EKOH) Delay time, ECLKIN high to ECLKOUT high 1 6.5 ns
6 td(EKIL-EKOL) Delay time, ECLKIN low to ECLKOUT low 1 6.5 ns
† The reference points for the rise and fall transitions are measured at VOL MAX and VOH MIN.
‡ E = ECLKIN period in ns
§ EH is the high period of ECLKIN in ns and EL is the low period of ECLKIN in ns.
5
6 1
2 3
ECLKIN ECLKIN
ECLKOUT
4 4
Figure 25. ECLKOUT Timings