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OPGP-34-A4B3RA
DELTA ELECTRONICS, INC.
4 Revision: S2
12/26/2006
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 line input Impedance R
IN
80 100 120 Ohm
Differential Data Input Swing VDT 400 2000 mV
p-p
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
LVPECL
BiasCNT Input Voltage- High V
BCNTH
2 V
CC
BiasCNT Input Voltage- Low V
BCNTL
0 0.8
LVTTL
Receiver
Total Supply Current I
CC
B mA Note (1)
Differential Data Output Swing VDR 700 900 mV
p-p
Note (2)
Signal Detect Output Voltage-High V
LOSH
2 V
CC
+0.3 V
Signal Detect Output Voltage-Low V
LOSL
0 0.8 V
LVTTL
Note (1). A (TX)+ B (RX) = 350mA (Not include termination circuit)
Note (2). Internally AC coupled, but requires a 100Ohm differential termination at or internal to Serializer/
Deserializer.
6. Transmitter Burst Mode Timing Characteristics
VccT BiasCNT Data Input Optical Output
VccT < 3.135V X X OFF
Low X OFF
No Other
VccT > 3.135V
High
Yes Laser bias and modulation signal output
X = Don’t care
Other = Less than +8dBm (peak)
High = Logic high level, Low = logic low level
No = Data NOT Present, Yes = Data Present,
OFF = Optical Power is less than –45dBm
Preamble
Payload
Ton<16 bits
BiasCNT
TD (p)
Optical Output
Toff<16 bits
Tx Enable
Tx Disable
Within 15% of steady state
Ton/Toff Time Definition