AFCT-5765ANPZ Datasheet, PDF (14/19 Pages) AVAGO TECHNOLOGIES LIMITED – Families of Small Form Factor Pluggable (SFP) Optical Transceivers for Single-Mode OC3/STM-1 with Optional DMI Part of the Avago Technologies METRAK Family

Transceiver Digital Diagnostic Monitor (Real Time Sense) Characteristics (AFCT-5765Z family only)
Parameter
Symbol Min. Typ. Max. Unit
Transceiver Internal Temperature Accuracy
T_INT
-3.0
+3.0
°C
Transceiver Internal Supply Voltage Accuracy
V_INT
-3.0
+3.0
%
Transmitter Laser dc Bias Current Accuracy
I_INT
-10
+10
%
Transmitted Average Optical Output Power Accuracy P_T
-3.0
+3.0
dB
Received Average Optical Input Power Accuracy
P_R
-3.0
+3.0
dB
Notes:
1. Temperature was measured internal to the transceiver. Valid from = -10 °C to +85 °C or from -40°C to +85°C.
For calibration to an external temperature, please contact Avago Technologies.
2. Reference voltage is 3.3 V.
3. Valid from 0 to 50 mA, avg.
Reference
1
2
3
Transceiver Timing Characteristics
Parameter
Symbol
Minimum
Maximum
Unit
Notes
Hardware TX_DISABLE Assert Time
t_off
10
ms
Note 1
Hardware TX_DISABLE Negate Time
Time to initialize, including reset of TX_FAULT
t_on
t_init
1
ms
Note 2
300
ms
Note 3
Hardware TX_FAULT Assert Time
Hardware TX_DISABLE to Reset
t_fault
t_reset
10
100
ms
Note 4
ms
Note 5
Hardware RX_LOS Assert Time
Hardware RX_LOS De-Assert Time
t_loss_on
t_loss_off
100
ms
Note 6
100
ms
Note 7
Software TX_DISABLE Assert Time
Software TX_DISABLE Negate Time
t_off_soft
t_on_soft
100
ms
Note 8
100
ms
Note 9
Software Tx_FAULT Assert Time
Software Rx_LOS Assert Time
t_fault_soft
t_loss_on_soft
100
ms
Note 10
100
ms
Note 11
Software Rx_LOS De-Assert Time
Analog parameter data ready
t_loss_off_soft
t_data
100
1000
ms
Note 12
ms
Note 13
Serial bus hardware ready
Write Cycle Time
t_serial
t_write
300
ms
Note 14
10
ms
Note 15
Serial ID Clock Rate
f_serial_clock
400
kHz
Notes:
1. Time from rising edge of TX_DISABLE to when the optical output falls below 10% of nominal.
2. Time from falling edge of TX_DISABLE to when the modulated optical output rises above 90% of nominal.
3. Time from power on or falling edge of Tx_Disable to when the modulated optical output rises above 90% of nominal.
4. From power on or negation of TX_FAULT using TX_DISABLE.
5. Time TX_DISABLE must be held high to reset the laser fault shutdown circuitry.
6. Time from loss of optical signal to Rx_LOS Assertion.
7. Time from valid optical signal to Rx_LOS De-Assertion.
8. Time from two-wire interface assertion of TX_DISABLE (A2h, byte 110, bit 6) to when the optical output falls below 10% of nominal. Measured
from falling clock edge after stop bit of write transaction.
9. Time from two-wire interface de-assertion of TX_DISABLE (A2h, byte 110, bit 6) to when the modulated optical output rises above 90% of
nominal.
10. Time from fault to two-wire interface TX_FAULT (A2h, byte 110, bit 2) asserted.
11. Time for two-wire interface assertion of Rx_LOS (A2h, byte 110, bit 1) from loss of optical signal.
12. Time for two-wire interface de-assertion of Rx_LOS (A2h, byte 110, bit 1) from presence of valid optical signal.
13. From power on to data ready bit asserted (A2h, byte 110, bit 0). Data ready indicates analog monitoring circuitry is functional.
14. Time from power on until module is ready for data transmission over the serial bus (reads or writes over A0h and A2h).
15. Time from stop bit to completion of a 1-8 byte write command.
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