Delta Electronics SFP Bi-Directional Transceiver Module SPBD-155F4J1R Uživatelský manuál stáhnout pdf (Strana 4)

SPBD-155F4J1R

DELTA ELECTRONICS, INC.

4 Revision: S1

09/20/2006

www.deltaww.com

5. Electrical Interface Characteristics

Parameter Symbol Min. Typ. Max. Unit Note

Transmitter

Total Supply Current I

A mA Note (1)

Differential Data Input Swing VDT 500 2400 mV

p-p

Differential line input Impedance R

80 100 120 Ohm

Data Input Voltage- High V

-V

-1.165 -0.880 V

Data Input Voltage- Low V

-V

-1.810 -1.475 V

Transmitter Disable Input-High V

DISH

2 V

Transmitter Disable Input-Low V

DISL

0 0.8 V

Transmitter Fault Output-High V

TXFH

2 V

+0.3 V

Transmitter Fault Output-Low V

TXFL

0 0.8 V

Transmitter Fault Pull up Resistor R

TX_FAULT

4.7 10 k Note (2)

Receiver

Total Supply Current I

B mA Note (1)

Differential Data Output Swing VDR 400 2000 mV

p-p

Note (3)

Data Output Voltage-High V

-V

-1.085 -0.880 V

Data Output Voltage-Low V

-V

-1.830 -1.555 V

LOS Output Voltage-High V

LOSH

2 V

+0.3 V

LOS Output Voltage-Low V

LOSL

0 0.8 V

Receiver LOS Load R

RXLOS

4.7 10 k Note (2)

Note (1). A (TX)+ B (RX) = 250mA (Not include termination circuit)

Note (2). Pull up to V

on host Board.

Note (3). Internally AC coupled, but requires a 100Ohm differential termination at or internal to Serializer/

Deserializer.

6. Timing of Control and Status I/O

Parameter Symbol Min. Max. Unit Unit Conditions

TX_DISABLE Assert

Time

t_off 10

µsec

Time from rising edge of TX_DISABLE to

when the optical output falls below 10% of

nominal

TX_DISABLE

Negate Time

t_on 1 msec

Time from falling edge of TX_DISABLE to

when the modulated optical output rises above

90% of nominal

Time to initialize,

including reset of

TX_FAULT

t_init 300 msec

From power on or negation of TX_Fault using

TX_Disable.

TX_Fault Assert Time

t_fault

100

sec

Time from fault to TX_Fault on.

TX_DISABLE to

reset

t_rest 10

µsec

Time TX_Disbale must be held high to reset

TX_Fault

LOS Assert Time t_loss_on 100

µsec

Time from LOS state to Rx LOS assert

LOS Deassert Time t_loss_off 100

µsec

Time from non-LOS state to Rx LOS deassert

Serial ID Clock Rate f_serial_clock 100 kHz

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