Datasheet

FTL-1319-3D Long-Wavelength GBIC Specification – November 2007 F i n i s a r
© Finisar Corporation November 16, 2007 Rev. C3 Page 4
Parameter Symbol Min Typ Max Units Notes/Conditions
RX_LOS Assert Level -- -31 dBm
RX_LOS Deassert Level -- -20 dBm
RX_LOS Hysteresis -- 0.5 dB
RX_LOS Assert Delay t_loss_on 100 µsec From detection of loss of signal
to assertion of RX_LOS
RX_LOS Negate Delay t_loss_off 100 µsec From detection of presence of
signal to negation of RX_LOS
TX_DISABLE Assert Time t_off 10 µsec Rising edge of TX_DISABLE to
fall of output signal below 10%
of nominal
TX_DISABLE Negate Time t_on 1000 µsec Falling edge of TX_DISABLE
to rise of output signal above
90% of nominal
TX_DISABLE Reset Time t_reset 10 µsec TX_DISABLE HIGH before
TX_DISABLE set LOW
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 V
in
650 2000 mV PECL differential peak - peak
Data Output Voltage V
out
370 2000 mV PECL differential peak - peak
PECL rise/fall t
r
,t
f
260 psec 20%-80% differential
Bit Error Rate BER 10
-12
PRBS 2
7
- 1 test data pattern
Tx Input Impedance Z
in
75 Ohm
Rx Output Impedance Z
out
75 Ohm
Table 5. High-speed electrical interface