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参数资料
| 型号： | AFBR-57R5AEZ |
| 元件分类： | 光收发 |
| 英文描述： | FIBER OPTIC TRANSCEIVER, 830-860nm, 4250Mbps(Tx), 4250Mbps(Rx), BOARD/PANEL MOUNT, LC CONNECTOR |
| 封装： | ROHS COMPLIANT PACKAGE-10 |
| 文件页数： | 4/20页 |
| 文件大小： | 479K |
| 代理商： | AFBR-57R5AEZ |
12
Table9.TransceiverSOFTDIAGNOSTICTimingCharacteristics
(TC=-10°Cto85°C,VccT,VccR=3.3V±10%)
Parameter
Symbol
Minimum
Maximum
Unit
Notes
Hardware TX_DISABLE Assert Time
t_off
10
s
Note 1
Hardware TX_DISABLE Negate Time
t_on
1
ms
Note 2
Time to initialize, including reset of TX_FAULT
t_init
300
ms
Note 3
Hardware TX_FAULT Assert Time
t_fault
100
s
Note 4
Hardware TX_DISABLE to Reset
t_reset
10
s
Note 5
Hardware RX_LOS DeAssert Time
t_loss_on
100
s
Note 6
Hardware RX_LOS Assert Time
t_loss_off
100
s
Note 7
Software TX_DISABLE Assert Time
t_off_soft
100
ms
Note 8
Software TX_DISABLE Negate Time
t_on_soft
100
ms
Note 9
Software Tx_FAULT Assert Time
t_fault_soft
100
ms
Note 10
Software Rx_LOS Assert Time
t_loss_on_soft
100
ms
Note 11
Software Rx_LOS De-Assert Time
t_loss_off_soft
100
ms
Note 12
Analog parameter data ready
t_data
1000
ms
Note 13
Serial bus hardware ready
t_serial
300
ms
Note 14
Write Cycle Time
t_write
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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