FWLF1634Ryxx DWDM SFP Preliminary Product Specification – February 2009
F i n i s a r
IV.
Low Speed Signals
Parameter
Symbol Min Typ Max Units Notes/Conditions
RX_LOS Assert Level
RX_LOS De-assert Level
RX_LOS Hysteresis
-42
0.5
-36
-34
2
dBm
dBm
dB
-28
100
100
10
RX_LOS Assert Delay
t_loss_on
t_loss_off
t_off
From detection of loss of signal
to assertion of RX_LOS
µsec
RX_LOS Negate Delay
From detection of presence of
signal to negation of RX_LOS
µsec
µsec
TX_DISABLE Assert Time
Rising edge of TX_DISABLE to
fall of output signal below 10%
of nominal
TX_DISABLE Negate Time
t_on
1000
Falling edge of TX_DISABLE
to rise of output signal above
90% of nominal. Time
µsec
indicated is under steady-state
temperature conditions.
TX_DISABLE Reset Time
TX_FAULT Assert
t_reset
10
TX_DISABLE HIGH before
TX_DISABLE set LOW
µsec
-0.2
+0.2
nm TX_Fault will assert before the
device is outside of specified
wavelength range
Finisar Corporation
Rev C2, Feb.2009
PRELIMINARY
Page 5
FINISAR [ FINISAR CORPORATION. ]
