Texas Instruments TMS320C6712D User Manual page 69

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