MIC3000 Datasheet, PDF (27/68 Pages) Micrel Semiconductor – SFP Management IC

MIC3000
TXDISABLE
LASER_SHUTDOWN
RSIN
D7 D6 D5 D4 D3 D2 D1 D0
RSOUT
TXFAULT
ILD & TX Fault
Comparators
RXLOS
RXLOS Fault
Comparator
Figure 13. Control and Status I/O Logic
System Timing
The timing specifications for MIC3000 control and status
I/O are given in the “Electrical Characteristics” section.
TXDISABLE
t_OFF
t_ON
90% of nominal output
Transmitter Output
10% of nominal output
TXFAULT
Figure 14. Transmitter ON-OFF Timing
t_INIT
VDD
t_POR
TXFAULT
TXDISABLE
Transmitter Output
90% Nominal Output
Figure 15. Initialization Timing with TXDISABLE Asserted
Micrel
October 2004
27
M9999-101204