Delta Electronics OPEP-33-A4Q3R manual Electrical Interface Characteristics, Lvttl

OPEP-33-A4Q3R

Note (1). Measured with Light source +1dBm, 1490nm, ER=9dB; BER =<10-12@PRBS=27-1 NRZ This assurance should be met with asynchronous data flowing out of the optical transmitter of the system under test. The output data pattern from the transmitter of the system under test is a repetition of alternate 0/1 pattern as defined for this measurement.

Note (2). When SD deasserted, the data output is Low-level (fixed) Note (3). These are 20%~80% values.

Note (4). Measured at wavelength of 1490nm.

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		1600	mVp-p	Note (2)
BiasCNT Input Voltage- High		VBCH	2		Vcc	V	LVTTL
BiasCNT Input Voltage- Low		VBCL	0		0.8	V
Receiver
Total Supply Current		ICC			B	mA	Note (1)
Differential Data Output Swing		VDR	400		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) = 300mA	(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

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
BiasCNT Enable Duration		1			us
Interval of BiasCNT Signal		0.112		1000000	us

BiasCNT

BiasCNT Enable Duration

Interval of BiasCNT Signal

4	Revision: S1
	03/12/2007
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