SPEU-F3411-PE2DB GEPON ONU SFF 2X10

SPEU-F3411-PE2DB

GEPON ONU SFF 2X10

Features
Single fiber Bi-Directional transceiver with single SC/PC pigtail
1310nm burst-mode 1.25Gbps transmitter with DFB LD laser
1490nm continuous-mode 1.25Gbps receiver with APD-TIA
Burst mode: “low” active
Complies with IEEE Std 802.3ah™ -2004
Digital diagnostic interface compliant with SFF-8472 Rev 9.5, Digital Diagnostic Monitoring (DDM) with external calibration
3.3V Single power supply
Complies with RoHS directive
Operating case temperature:
Standard : 0 to +70°C

Applications
IEEE 802.3ah 1000BASE-PX20++
GE-PON ONU
Burst mode application.
FTTx WDM Broadband Access

Description
The SPEU-F3411-PE2DB Bi-Directional Transceiver is the high performance module for single fiber communications by using 1310nm 1.25Gbps burst mode transmitter and 1490nm 1.25Gbps continuous receiver. It is Optical Network Unit (ONU) for IEEE Std 802.3ah™ -2004. The optical transceiver is compliant with Multi-Source Agreement (MSA) Small Form Factor (SFF) 2x10 footprint. The transmitter section uses a 1310nm DFB laser diode with automatic power control (APC) function and temperature compensation circuitry to ensure stable extinction ratio overall operating temperature range, and full IEC825 and CDRH class 1 eye safety. The receiver has a hermetically packaged PIN-TIA (trans-impedance amplifier) pre-amplifier and a limiting amplifier with CML compatible differential outputs.

Absolute Maximum Ratings

Parameter	Symbol	Min.	Max.	Units	Notes
Storage Temperature	Tst	-40	+85	°C	-
Operating Case Temperature	Tc	0	70	°C	-
Operating Humidity	RH	5	90	%	Non-condensing
Input Voltage	-	GND	Vcc	V	-
Power Supply Voltage	Vcc-Vee	0	3.6	V	-

Recommended Operating Conditions

Parameter	Symbol	Min	Typical	Max	Unit
Operating Case Temperature	Tc	0	-	+70	°C
Power Supply Voltage	Vcc	3.13	3.3	3.47	V
Power Supply Current	Icc	-	-	300	mA

Optical and Electrical Characteristics

Parameter			Symbol	Min	Typical	Max	Unit	Notes
Transmitter
TX Data Rate			RT		1.25		Gb/S
Centre Wavelength			λc	1276	1310	1356	nm
Spectral Width			∆λ			2.8	nm
Total Jitter			TJ			0.35	dB
Side Mode Suppression Ratio			SMSR	30
Average Output Power			Pout	2		5	dBm	1
Average Launch Power-OFF Transmitter			Poff			-45	dBm
Extinction Ratio			ER	9			dB
Burst Enable Delay			Ton			32	ns	Fig.1
Burst Disable Delay			Toff			32	ns	Fig.1
Relative Intensity Noise			RIN15_OM			-115	Hz/Hz
Transmitter & Dispersion Penalty			TDP			1.8	dB
Optical Eye Diagram			Compliant with of IEEE802.3ah (Fig.60-6) transmitter eye ask definition
Optical Rise/ Fall Time (20%~80%)			tr/tf			260	ps
Data Input Swing Differential			VIN	200		1600	mV	2
Input Differential Impedance			ZIN	90	100	110	Ω
Burst	Disable			2.0		Vcc	V
Burst	Enable			0		0.8	V
TX Fault	Fault			2.0		Vcc	V
TX Fault	Normal			0		0.8	V
Receiver
RX Data Rate			Rr		1.25		Gb/S
Centre Wavelength			λc	1480		1500	nm
Receiver Sensitivity (BOL)			Sen			-30	dBm	3
Receiver Overload			Sat	-8			dBm	3
Receiver Reflectance						-12	dB
Signal Detect De-Assert			SDD	-44			dBm	4
Signal Detect Assert			SDA			-30	dBm
Signal Detect Hysteresis			SDH	0.5		6	dB	4
Output Differential Impedance			ZIN	90	100	110	Ω
Data Output Swing Differential			VOUT	400		1400	mV
SD Output Voltage		High		2.0		VCC	V
SD Output Voltage		Low		0		0.8	V

Notes:
1. The optical power is launched into SMF.
2. PECL input, internally DC-coupled and terminated.
3. Measured with a PRBS 2 -1 test pattern @1250Mbps, BER ≤1×10

Diagnostics

Parameter	Range	Unit	Accuracy	Calibration
Temperature	0 to +70	°C	±3°C	Internal/External
Voltage	3.0 to 3.6	V	±3%	Internal/External
Bias Current	0 to 100	mA	±10%	Internal/External
TX Power	2 to 5	dBm	±3dB	Internal/External
RX Power	-30 to -8	dBm	±3dB	Internal/External

Transmitter Burst Mode Timing Characteristics
Definition of Burst Enable Delay (Ton) and Burst Disable Delay (Toff)

GEPON ONU SFF

Digital Diagnostic Memory Map
The transceivers provide serial ID memory contents and diagnostic information about the present operating conditions by the 2-wire serial interface (SCL, SDA).
The diagnostic information with internal calibration or external calibration all are implemented, including received power monitoring, transmitted power monitoring, bias current monitoring, supply voltage monitoring and temperature monitoring.
The digital diagnostic memory map specific data field defines as following.

GEPON ONU SFF

Pin Definitions

Pin Diagram
GEPON ONU SFF

Pin Descriptions

Pin	Signal Name	Description	Notes
1	NC	Not Connect
2	VEER	Receiver Ground
3	VEER	Receiver Ground
4	NC	Not Connect
5	NC	Not Connect
6	VEER	Receiver Ground
7	VCCR	Receiver Power Supply
8	SD	Signal Detect Output	Note1
9	RD-	Inv. Received Data CML Output, Internal AC Coupling	Note2
10	RD+	Received Data CML Output, Internal AC Coupling	Note2
11	VCCT	Transmitter Power Supply
12	VEET	Transmitter Ground
13	BURST	Transmitter Burst Control	Note3
14	TD+	Transmit Data LVPECL Input, Internal AC Coupling	Note4
15	TD-	Inv. Transmit Data LVPECL Input, Internal AC Coupling	Note4
16	VEET	Transmitter Ground
17	SCL	Serial Clock Signal	Note5
18	SDA	Serial Data Signal	Note5
19	TX_F	TX Fault Alarm, LVTTL Output
20	TX_SD	TX Signal Detected

　　Notes:
Plug Seq.: Pin engagement sequence during hot plugging.
1) Logic 0 indicates loss of signal; Logic 1 indicates normal operation. In the low state, the output will be pulled to less than 0.8V.
2) RD-/+: These are the differential receiver outputs. They are internally AC-coupled 100 differential lines which should be terminated with 100Ω (differential) at the user SERDES.
3) BURST is a TTL input. When it is low, LD is on; when it is high, LD is off.
4) TD-/+: These are the differential transmitter inputs. They are internally AC-coupled, differential lines with 100Ω differential termination inside the module。
5) SCL, SDA should be pulled up with a 4.7k~10kΩ resistor on the host board. The pull-up voltage shall be VccT or VccR.
　　SCL is the clock line of two wire serial interface for serial ID
　　SDA is the data line of two wire serial interface for serial ID

Recommended Application Circuit

GEPON ONU SFF