SMJ320C6203 Datasheet, PDF (41/81 Pages) Texas Instruments – FIXED POINT SIGNAL PROCESSOR

SMJ320C6203
FIXEDĆPOINT DIGITAL SIGNAL PROCESSOR
INPUT AND OUTPUT CLOCKS (CONTINUED)
SGUS033 – FEBRUARY 2002
timing requirements for XCLKIN^† (see Figure 12)
NO.
1 tc(XCLKIN) Cycle time, XCLKIN
2 tw(XCLKINH) Pulse duration, XCLKIN high
3 tw(XCLKINL) Pulse duration, XCLKIN low
*This parameter is not production tested.
† _{P = 1/CPU clock frequency in nanoseconds (ns).}
MIN
4P
*1.8P
*1.8P
MAX
UNIT
ns
ns
ns
1
2
XCLKIN
3
Figure 12. XCLKIN Timings
switching characteristics over recommended operating conditions for CLKOUT2^ठ(see Figure 13)
NO.
PARAMETER
1 tc(CKO2)
Cycle time, CLKOUT2
2 tw(CKO2H) Pulse duration, CLKOUT2 high
3 tw(CKO2L)
Pulse duration, CLKOUT2 low
*This parameter is not production tested.
‡ _{P = 1/CPU clock frequency in ns.}
§ _{The reference points for the rise and fall transitions are measured at VOL MAX and VOH MIN.}
MIN
*2P – 0.7
*P – 0.7
*P – 0.7
MAX
*2P + 0.7
*P + 0.7
*P + 0.7
UNIT
ns
ns
ns
CLKOUT2
1
2
3
Figure 13. CLKOUT2 Timings
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