9

Transceiver Timing Characteristics

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. From power on or negation of Tx Fault using Tx Disable.

4. Time from fault to Tx fault on.

5. Time Tx Disable must be held high to reset Tx_fault.

6. Time from LOS state to Rx LOS assert.

7. Time from non-LOS state to RX LOS deassert.

Parameter

Symbol

Minimum

Typical

Maximum

Unit

Notes

Tx Disable Assert Time

t_off

10

µs

1

Tx Disable Negate Time

t_on

1

ms

2

Time to initialize, including reset of

Tx-Fault

t_init

300

ms

3

Tx Fault Assert Time

t_fault

100

µs

4

Tx Disable to Reset

t_reset

10

µs

5

LOS Assert Time

t_loss_on

2.3

100

µs

6

LOS Deassert Time

t_loss_off

100

µs

7

Serial ID Clock Rate

f_serial_

clock

100

kHz

Figure 5. Timing Diagrams