Datasheet

Micrel, Inc. KS8999
January 2005
40
KS8999
Symbol Parameter Condition Min Typ Max Units
100BaseTX Transmit (measured differentially after 1:1 transformer)
Duty Cycle Distortion ±0.5 ns
Overshoot 5 %
V
SET
Reference Voltage of ISET
0.75 V
Output Jitters Peak-to-peak 0.7 1.4 ns
10BaseTX Receive
V
SQ
Squelch Threshold 5MHz square wave
400 mV
10BaseT Transmit (measured differentially after 1:1 transformer)
V
P
Peak Differential Output Voltage 50Ωfrom each output to V
DD
2.3 V
Jitters Added 50Ωfrom each output to V
DD
±3.5 ns
Rise/Fall Times 28 ns