Delta Electronics OPGP-34-A4B3RA manual Electrical Interface Characteristics, Lvttl, Off

OPGP-34-A4B3RA

5. Electrical Interface Characteristics

Parameter		Symbol	Min.	Typ.	Max.	Unit	Note
Transmitter
Total Supply Current		ICC			A	mA	Note (1)
Differential line input Impedance		RIN	80	100	120	Ohm
Differential Data Input Swing		VDT	400		2000	mVp-p	LVPECL
Data Input Voltage- High		VIH-VCC	-1.165		-0.880	V
Data Input Voltage- Low		VIL-VCC	-1.810		-1.475	V
BiasCNT Input Voltage- High		VBCNTH	2		VCC		LVTTL
BiasCNT Input Voltage- Low		VBCNTL	0		0.8
Receiver
Total Supply Current		ICC			B	mA	Note (1)
Differential Data Output Swing		VDR	700		900	mVp-p	Note (2)
Signal Detect Output Voltage-High		VLOSH	2		VCC+0.3	V	LVTTL
Signal Detect Output Voltage-Low		VLOSL	0		0.8	V
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
VccT > 3.135V	Low	X	OFF
	High	No	Other
		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

BiasCNT

PreamblePayload

TD (p)

Ton<16 bits

Within 15% of steady state

Optical Output

Tx Enable

Ton/Toff Time Definition

Toff<16 bits

Tx Disable

4	Revision: S2
	12/26/2006
DELTA ELECTRONICS, INC.	www.deltaww.com