HFBR-59L1AGEZ Datasheet, PDF (11/13 Pages) AVAGO TECHNOLOGIES LIMITED – 1.25 GBd Ethernet and 1.0625 GBd Fibre Channel 850 nm SFF Low Voltage (3.3 V) Optical Transceiver

VCC > 2.97 V
Tx_FAULT
Tx_DISABLE
TRANSMITTED SIGNAL
t- init: TX D IS A B LE D E- A S S ER TED
t_init
Tx_FAULT
Tx_DISABLE
TRANSMITTED SIGNAL
t_off
t_on
t-off & t-on: TX DISABLE ASSERTED THEN NEGATED
OCCURANCE OF FAULT
Tx_FAULT
Tx_DISABLE
TRANSMITTED SIGNAL
* SFP SHALL CLEAR TX_FAULT IN
t_reset
< t_init IF THE FAILURE IS TRANSIENT
t_init*
t-reset: TX DISABLE ASSERTED THEN NEGATED, TX SIGNAL RECOVERED
VCC > 2.97 V
Tx_FAULT
Tx_DISABLE
TRANSMITTED SIGNAL
t- init: TX D IS A B LE A S S ER TED
t_init
OPTICAL SIGNAL
Rx_SD
t_loss_on
OCCURANCE
OF LOSS
t-loss-on & t-loss-off
Figure 5. Transceiver timing diagrams
t_loss_off
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