TMS320C6713B Floating-Point Digital Signal Processor (Rev. A)
TMS320C6713B Floating-Point Digital Signal Processor (Rev. A)
TMS320C6713B Floating-Point Digital Signal Processor (Rev. A)
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PARAMETER MEASUREMENT INFORMATION<br />
SPRS294 − OCTOBER 2005<br />
Tester Pin Electronics<br />
Data Sheet Timing Reference <strong>Point</strong><br />
42 3.5 nH<br />
4.0 pF 1.85 pF<br />
Z0 = 50 <br />
(see note)<br />
Transmission Line<br />
Output<br />
Under<br />
Test<br />
Device Pin<br />
(see note)<br />
NOTE: The data sheet provides timing at the device pin. For output timing analysis, the tester pin electronics and its transmission line effects<br />
must be taken into account. A transmission line with a delay of 2 ns or longer can be used to produce the desired transmission line effect.<br />
The transmission line is intended as a load only. It is not necessary to add or subtract the transmission line delay (2 ns or longer) from<br />
the data sheet timings.<br />
Input requirements in this data sheet are tested with an input slew rate of < 4 Volts per nanosecond (4 V/ns) at the device pin.<br />
Figure 25. Test Load Circuit for AC Timing Measurements<br />
signal transition levels<br />
All input and output timing parameters are referenced to 1.5 V for both “0” and “1” logic levels.<br />
Vref = 1.5 V<br />
Figure 26. Input and Output Voltage Reference Levels for AC Timing Measurements<br />
All rise and fall transition timing parameters are referenced to V IL MAX and V IH MIN for input clocks, V OL MAX<br />
and V OH MIN for output clocks.<br />
Vref = VIH MIN (or VOH MIN)<br />
Figure 27. Rise and Fall Transition Time Voltage Reference Levels<br />
Vref = VIL MAX (or VOL MAX)<br />
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443<br />
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