Delta Electronics SPBD-1250A4Q1RT Electrical Interface Characteristics, Transmitter, Receiver

					SPBD-1250A4Q1RT
Stressed Receive sensitivity				-15.4		dBm
Stressed Receive sensitivity OMA				44.8		uW
				-13.5		dBm
Vertical Eye-closure Penalty			V ECP	2.6		dB
Deterministic Jitter			DJ		170	ps
Total Jitter			TJ		266	ps
Output Data Rise/Fall time			tr/tf		260	ps	Note (5)
Receiver 3dB upper cutoff frequency					1500	MHz
Optical	Isolation	1260 to 1360nm			-43	dB
from	External	1550 to 1560nm			-33	dB
Source		1640 to 1665nm			-33	dB

Note (1). Measured with 1490nm, ER=9dB; BER =<10-12@PRBS=27-1 NRZ Note (2). Specified with minimum optical extinction ration of 9dB.

Note (3). When LOS asserted, the data output is Low-level (fixed)

Note (4). When the terminal is viewed from the optical path, the reflection toward the optical path of the optical signal with a central wavelength of 1480nm to 1500nm transmitted to terminal.

Note (5). These are 20%~80% values

5. Electrical Interface Characteristics

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Transmitter
Total Supply Current	ICC			A	mA	Note (1)
Differential Data Input Swing	VDT	500		2400	mVp-p
Differential line input Impedance	RIN	80	100	120	Ohm
Transmitter Disable Input-High	VDISH	2		VCC	V	Note (2)
Transmitter Disable Input-Low	VDISL	0		0.8	V
Transmitter Fault Output-High	VTXFH	2		VCC+0.3	V
Transmitter Fault Output-Low	VTXFL	0		0.8	V
Transmitter Fault Pull up Resistor	RTX_FAULT	4.7		10	kΩ	Note (3)
Receiver
Total Supply Current	ICC			B	mA	Note (1)
Differential Data Output Swing	VDR	400		900	mVp-p	Note (4)
LOS Output Voltage-High	VLOSH	2		VCC+0.3	V
LOS Output Voltage-Low	VLOSL	0		0.8	V
Receiver LOS Load	RRXLOS	4.7		10	kΩ	Note (3)

Note (1). A (TX)+ B (RX) = 300mA

(A: Not include termination circuit; B: using a resister of 150Ω between Data-output and ground) Note (2). There is an internal 4.7 to 10kΩ pull-up resistor to VccT.

Note (3). Pull up to VCC on host Board.

Note (4). Internally AC coupled with CML output, but requires a 100Ohm differential termination at or internal to Serializer/ Deserializer.

4	Revision: S1
	03/12/2007
DELTA ELECTRONICS, INC.	www.deltaww.com