Rainbow Electronics DS1862 - Manual (Page 8)

DS1862
XFP Laser Control and Digital Diagnostic IC
8 _____________________________________________________________________
Timing Diagrams
V CC > V POA
TX-D
I BIASSET
I MODSET
t INIT
P-DOWN/RST
INTERRUPT
RESET
-DONE
RESET
-DONE
READ-FLAGS
t
INIT ON
t PDR-OFF
t INIT OFF
t INIT
READ-FLAGS
Figure 1. Power-On Initialization with P-DOWN/RST Asserted and TX-D/SOFT-TX-D Not Asserted
Figure 2. Power-On Initialization with P-DOWN/RST Not Asserted and TX-D/SOFT-TX-D Not Asserted (Normal Operation)
V CC > V POA
TX-D
I
BIASSET
I MODSET
t INIT
P-DOWN/RST
INTERRUPT
t
INIT ON
t INIT OFF
READ-FLAGS
RESET
-DONE