FTL-8519-3D GBIC Product Specification – November 2007
F i n i s a r
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
Symbol
Min
Typ
Max
Units Notes/Conditions
TX_DISABLE Negate Time
TX_DISABLE Reset Time
dBm
-19
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
10
μsec
Rising edge of TX_DISABLE to
fall of output signal below 10%
of nominal
t_on
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
Table 4. Low speed signal parameters
--
-30
--
--
0.5
t_loss_on
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
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
75
75
Table 5. High-speed electrical interface
©
Finisar Corporation November 16, 2007 Rev. A4
Page 4