6.6 Switching Characteristics
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified. (1)(2)
| PARAMETER |
MIN |
TYP |
MAX |
UNIT |
| tPHLD |
Differential Propagation Delay High to Low |
CL = 15 pF
VID = 200 mV
(Figure 9 and Figure 10) |
1 |
1.8 |
3.5 |
ns |
| tPLHD |
Differential Propagation Delay Low to High |
1 |
1.7 |
3.5 |
ns |
| tSKD1 |
Differential Pulse Skew |tPHLD − tPLHD| (3) |
0 |
100 |
400 |
ps |
| tSKD3 |
Differential Part to Part Skew (4) |
0 |
0.3 |
1.0 |
ns |
| tSKD4 |
Differential Part to Part Skew (5) |
0 |
0.4 |
1.5 |
ns |
| tTLH |
Rise Time |
|
350 |
800 |
ps |
| tTHL |
Fall Time |
|
175 |
800 |
ps |
| fMAX |
Maximum Operating Frequency (6) |
200 |
250 |
|
MHz |
(1) CL includes probe and jig capacitance.
(2) Generator waveform for all tests unless otherwise specified: f = 1 MHz, ZO = 50 Ω, tr and tf (0% to 100%) ≤ 3 ns for IN±.
(3) tSKD1 is the magnitude difference in differential propagation delay time between the positive-going-edge and the negative-going-edge of the same channel.
(4) tSKD3, part to part skew, is the differential channel-to-channel skew of any event between devices. This specification applies to devices at the same VDD and within 5°C of each other within the operating temperature range.
(5) tSKD4, part to part skew, is the differential channel-to-channel skew of any event between devices. This specification applies to devices over the recommended operating temperature and voltage ranges, and across process distribution. tSKD4 is defined as |Max − Min| differential propagation delay.
(6) fMAX generator input conditions: tr = tf < 1 ns (0% to 100%), 50% duty cycle, differential (1.05 V to 1.35 peak to peak). Output criteria: 60%/40% duty cycle, VOL (max 0.4 V), VOH (min 2.4 V), load = 15 pF (stray plus probes). The parameter is specified by design. The limit is based on the statistical analysis of the device over the PVT range by the transition times (tTLH and tTHL).