Philips PDIUSBH12 AC CHARACTERISTICS (AI/O pins, FULL speed)

Philips Semiconductors Product specification
PDIUSBH12USB 2-port hub
1999 Jul 22 20
AC CHARACTERISTICS (AI/O pins, FULL speed)
SYMBOL PARAMETER TEST CONDITIONS MIN MAX UNIT
Driver characteristics CL = 50pF;
Rpu = 1.5kΩ on D+ to VCC
Transition Time:
trRise time
Between 10% and 90%
4 20 ns
tfFall time
Between
10%
and
90%
4 20 ns
tRFM Rise/fall time matching (tr/tf) 90 110 %
VCRS Output signal crossover voltage 1.3 2.0 V
Driver Timings
tEOPT Source EOP width Figure 1 160 175 ns
tDEOP Differential data to EOP transition skew Figure 1 –2 5 ns
Receiver Timings
Receiver Data Jitter Tolerance
tJR1 To next transition Characterized and not tested. –18.5 18.5 ns
tJR2 For paired transitions Guaranteed by design. –9 9 ns
EOP Width at Receiver
tEOPR1 Must reject as EOP Figure 1 40 ns
tEOPR2 Must accept 82 ns
Hub Timings Full Speed downstream port.
tHDD Hub Differential Data Delay Figure 2 40 ns
tSOP Data bit width distortion after SOP Figure 2 –5 3 ns
tEOPDR Hub EOP Delay Relative to tHDD Figure 3 0 15 ns
tHESK Hub EOP Output Width Skew Figure 3 –15 +15 ns