Datasheet

9.0 Electrical Specifications (Continued)
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9.7.22 100BASE-X CRM Acquisition Time
Note: The Clock Generation Module (CGM) must be stable for at least 100 µs before the Clock Recovery Module (CRM) can lock to receive data.
Note: SD+ internal comes from the internal Signal Detect function block when in 100BASE-TX mode.
9.7.23 100BASE-TX Signal Detect Timing
Note: The SD internal signal is available as an external signal in Symbol mode.
Note: The signal amplitude at TPRD
+/− is TP-PMD compliant.
Parameter Description Notes Min Typ Max Units
T7.22.1 CRM Acquisition 100 Mb/s 250 µs
Parameter Description Notes Min Typ Max Units
T7.23.1 SD Internal Turn-on Time 1 ms
T7.23.2 SD Internal Turn-off Time 300 µs
FXSD+
FXRD+/-
PLL LOCKEDPLL PRIOR TO LOCK
T7.22.1
OR SD+ INTERNAL
T7.23.
SD+ INTERNAL
T7.23.2
TPRD +/-