afbr-5710z Avago Technologies, afbr-5710z Datasheet - Page 12

• Manufacturer Part Number: afbr-5710z
• Description: Families Of Multi-mode Small Form Factor Pluggable Sfp Optical Transceivers With Optional Dmi For Gigabit Ethernet 1.25 Gbd
• Manufacturer: Avago Technologies

Table 9. Transceiver Digital Diagnostic Monitor (Real Time Sense) Characteristics
Parameter
Transceiver Internal Temperature
Accuracy
Transceiver Internal Supply
Voltage Accuracy
Transmitter Laser DC Bias Current
Accuracy
Transmitted Average Optical
Output Power Accuracy
Received Average Optical Input
Power Accuracy
Figure 6. Transceiver timing diagrams (Module installed except where noted).
12
t-fault2: TX DISABLE ASSERTED THEN NEGATED,
TX SIGNAL NOT RECOVERED
NOTE: t_fault2 timing is typically 1.7 to 2 ms.
t-init: TX DISABLE NEGATED
t-init: TX DISABLE NEGATED, MODULE HOT PLUGGED
t-fault: TX FAULT ASSERTED, TX SIGNAL NOT RECOVERED
* SFP SHALL CLEAR Tx_FAULT IN
TRANSMITTED SIGNAL
OCCURANCE OF FAULT
TRANSMITTED SIGNAL
TRANSMITTED SIGNAL
OCCURANCE OF FAULT
t_init IF THE FAILURE IS TRANSIENT
TRANSMITTED SIGNAL
TX_DISABLE
V
TX_DISABLE
V
TX_DISABLE
CC
TX_FAULT
TX_DISABLE
CC
TX_FAULT
TX_FAULT
TX_FAULT
> 3.15 V
> 3.15 V
INSERTION
t_reset
t_init
t_fault
t_init
t_fault2
Symbol
T
V
I
P
P
INT
INT
INT
T
R
t_init*
Min.
±3.0
±0.1
±10
±3.0
±3.0
Units
V
%
dB
dB
˚C
t-loss-on & t-loss-off
t-init: TX DISABLE ASSERTED
t-off & t-on: TX DISABLE ASSERTED THEN NEGATED
t-reset: TX DISABLE ASSERTED THEN NEGATED, TX SIGNAL RECOVERED
Notes
Temperature is measured internal to the transceiver.
Valid from = -40˚C to 85 ˚C case temperature.
Supply voltage is measured internal to the transceiver
and can, with less accuracy, be correlated to
voltage at the SFP Vcc pin. Valid over 3.3 V ±5%.
I
Coupled into 50/125 µm multi-mode fiber.
Coupled from 50/125 µm multi-mode fiber.
TRANSMITTED SIGNAL
TRANSMITTED SIGNAL
* SFP SHALL CLEAR TX_FAULT IN
Valid from
Valid from
OCCURANCE OF FAULT
INT
TRANSMITTED SIGNAL
OCCURANCE OF LOSS
t_init IF THE FAILURE IS TRANSIENT
is better than ±10% of the nominal value.
OPTICAL SIGNAL
TX_DISABLE
TX_DISABLE
V
TX_DISABLE
CC
TX_FAULT
TX_FAULT
TX_FAULT
100 µW to 500 µW, avg.
31 µW to 500 µW, avg.
> 3.15 V
LOS
t_loss_on
t_off
t_reset
t_init
t_init*
t_on
t_loss_off