FTR-1631-XX DWDM GBIC Preliminary Product Specification
F i n i s a r
Parameter
Symbol Min Typ Max Units Notes/Conditions
RX_LOS Assert Level
RX_LOS Deassert Level
-42
-36
-34
dBm
dBm
-32
300
150
1.5
RX_LOS Hysteresis
RX_LOS Assert Delay
2
dB
t_loss_on
t_loss_off
t_off
From detection of loss of signal
to assertion of RX_LOS
msec
RX_LOS Negate Delay
From detection of presence of
signal to negation of RX_LOS
msec
TX_DISABLE Assert Time
msec Rising edge of TX_DISABLE to
fall of output signal below 10%
of nominal
TX_DISABLE Negate Time
t_on
6.0
msec Falling edge of TX_DISABLE
to rise of output signal above
90% of nominal. Time
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
msec
-0.1
0.1
nm TX_Fault will assert before the
device is outside of specified
wavelength range
Table 4. Low Speed Signal Parameters
IV. High Speed Electrical Interface
All high-speed PECL signals are AC coupled internally.
Parameter
Symbol Min
Typ
Max
Units
Notes/Conditions
Data Input Voltage
Data Output Voltage
PECL rise/fall
V
650
370
2000
2000
150
mV
mV
PECL differential peak - peak
PECL differential peak - peak
20% -80% Differential
in
V
out
Tr,Tf
BER
psec
Bit Error Rate
10-12
PRBS 223 - 1 test data pattern
Tx Input Impedance
Rx Output Impedance
Zin
75
75
Ohm
Ohm
Zout
Table 5. High Speed Electrical Interface
Ó Finisar Corporation
PRELIMINARY and Confidential
Page 5
Rev J, August 2004
FINISAR [ FINISAR CORPORATION. ]
