SPBD-155E4J1RT
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
CC
A
mA
Note
(1)
Differential Data Input Swing
V
DT
500 2400
mV
p-p
Differential line input Impedance
R
IN
80
100
120
Ohm
Data Input Voltage- High
V
IH
-V
CC
-1.165
-0.880
V
Data Input Voltage- Low
V
IL
-V
CC
-1.810
-1.475
V
Transmitter Disable Input-High
V
DISH
2 V
CC
V
Transmitter Disable Input-Low
V
DISL
0 0.8 V
Transmitter Fault Output-High
V
TXFH
2
V
CC
+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
Ω
Note
(2)
Receiver
Total Supply Current
I
CC
B
mA
Note
(1)
Differential Data Output Swing
V
DR
400 2000
mV
p-p
Note
(3)
Data Output Voltage-High
V
OH
-V
CC
-1.085
-0.880
V
Data Output Voltage-Low
V
OL
-V
CC
-1.830
-1.555
V
LOS Output Voltage-High
V
LOSH
2
V
CC
+0.3
V
LOS Output Voltage-Low
V
LOSL
0 0.8 V
Receiver LOS Load
R
RXLOS
4.7 10 k
Ω
Note
(2)
Note (1). A (TX)+ B (RX) = 250mA (Not include termination circuit)
Note (2). Pull up to V
CC
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
µ
sec
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
µ
sec
Time from fault to TX_Fault on.
TX_DISABLE to
reset
t_rest 10
µ
sec
Time TX_Disbale must be held high to reset
TX_Fault
LOS Assert Time
t_loss_on
100
µ
sec Time from LOS state to Rx LOS assert
LOS Deassert Time
t_loss_off
100
µ
sec Time from non-LOS state to Rx LOS deassert
Serial ID Clock Rate f_serial_clock 100
kHz
