FTR-1419 40km Extended GBIC Product Specification – November 2007
Low Speed Signal Parameters
Parameter
RX_LOS Assert Level
RX_LOS Deassert Level
RX_LOS Hysteresis
RX_LOS Assert Delay
RX_LOS Negate Delay
TX_DISABLE Assert Time
Units Notes/Conditions
dBm
-20
dBm
dB
44
100
μsec
From detection of loss of signal
to assertion of RX_LOS
t_loss_off
44
100
μsec
From detection of presence of
signal to negation of RX_LOS
t_off
5
10
μsec
Rising edge of TX_DISABLE to
fall of output signal below 10%
of nominal
t_on
63
1000
μsec
Falling edge of TX_DISABLE
to rise of output signal above
90% of nominal
t_reset
10
μsec
TX_DISABLE HIGH before
TX_DISABLE set LOW
t_init
300
msec From power on after VCC > 4.5
V
t_fault
100
μsec
From occurrence of fault.
Table 4. Low speed signal parameters
Symbol Min
--
-31
--
--
0.5
t_loss_on
Typ
Max
TX_DISABLE Negate Time
TX_DISABLE Reset Time
TX_FAULT Initialize Time
TX_FAULT Assert Time
IV. High Speed Electrical Interface
All high-speed PECL signals are AC coupled internally.
High Speed Electrical
Interface
Parameter
Data Input Voltage
Data Output Voltage
Duty Cycle
PECL rise/fall
Bit Error Rate
Tx Input Impedance
Rx Output Impedance
Symbol
V
in
V
out
--
T
r
,T
f
BER
Z
in
Z
out
Min
650
370
Typ
Max
2000
2000
260
10
-12
Units
mV
mV
%
psec
Ohm
Ohm
Notes/Conditions
PECL differential peak - peak
PECL differential peak - peak
20%-80% Differential
PRBS 2
7
- 1 test data pattern
50
125
75
75
Table 5. High-speed electrical interface
©
Finisar Corporation November 16, 2007 Rev.G1
Page 4
FINISAR [ FINISAR CORPORATION. ]
