AK2573A Datasheet, PDF (25/38 Pages) Asahi Kasei Microsystems – 125M / 156M Laser Diode Driver + APC

ASAHI KASEI
7.2 Power on Initialization Procedure without Shutdown Request (TXDIS=L)
VDD
TXDIS
2ms
LD Current
TXFAULT with OPTALM enable
(if accelerated delay time is selected)
APC FF or
FB initial setting
APC FF
Power On Reset
Normal Operation
APC FB initial procedure
ALM operation
TXFAULT enable （without OPTALM)
t_init: 160ms (typ)
TXFAULT with
OPTALM enable
[AK2573A]
7.3 PoweronInitializationProcedurewithShutdownrequest(TXDIS=H)
VDD
TXDIS
LD current
APC FF or
FB initial setting
APC FF
Power On Reset
2ms
TXFAULT with OPTALM enable
(if accelerated delay time is selected)
Normal Operation
APC FB initial procedure
ALM operation
TXFAULT enable （without OPTALM) TXFAULT with
OPTALM enable
t_init: 160ms (typ)
<MS0189-E-01>
-25-
2004/5