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10G SFP+ DWDM 80 km

Ascent’s DWDM ITU Channel SFP+ transceivers are designed for use in 10-Gigabit Ethernet links with distances up to 80 km over single-mode fiber. These transceivers include a PIN photo detector diode and temperature stabilized DFB-EML transmitter. Digital diagnostic functions are available via an I2C interface. This module is designed for single-mode fiber and operates at a nominal wavelength of 100 GHz ITU Grid, C Band DWDM wavelength.

    Supports up to 11.3 Gb/s bit rates

    Up to 80 km transmission distance on SMF

    DWDM EML transmitter and APD receiver

    Metal enclosure, for lower EMI

    2-wire interface with integrated digital diagnostic monitoring

    Hot-pluggable SFP+ footprint

    Specifications compliant with SFF 8472

    Compliant with SFP+ MSA with LC connector

    Single 3.3 V power supply

Absolute Maximum Ratings 

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Storage Temperature

Ts

‑40

85

°C


Relative Humidity

RH

5

95

%


Power Supply Voltage

VCC

‑0.3

4

V


Signal Input Voltage


Vcc‑0.3

Vcc+0.3

V


Recommended Operating Conditions

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Case Operating Temperature

Top

0

70

°C

SFPP‑AT‑LP‑DXX‑80



‑40

85

°C

SFPP‑AT‑LP‑DXX‑80A

Power Supply Voltage

VCC

3.14

3.3

3.47

V


Data Rate

BR


10.3125


Gbps


Transmission Distance

TD



80

m


Coupled Fiber

Single‑mode fiber

9/125 µm SMF

Optical Characteristics 

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Transmitter

Average Launched Power

PO

‑1


+4

dBm

1

Extinction Ratio

ER

8.2



dB


Center Wavelength

λC

λC‑0.1


λC+0.1

nm

2

Center Wavelength Spacing



100


GHz

2

Spectrum Bandwidth (‑20 dB)

σ



1.0

nm


SMSR


30



dB


Transmitter OFF Output Power

POFF



‑30

dBm


Transmitter and Dispersion Penalty

TDP



3.0

dB


Output Eye Mask

Compliant with IEEE 802.3ae



Receiver

Input Optical Wavelength

λ

1270


1610

nm


Receiver Sensitivity

RSENS



‑23.0

dBm

3

Input Saturation Power (Overload)

PSAT

‑6.0



dBm


Receiver Reflectance

Rrx



‑27

dB


LOS Assert 

LOSA

‑35



dBm


LOS De‑Assert 

LOSD



‑26

dBm


LOS Detect Hysteresis

Phys

0.5



dB


Notes:

1.      Launched power (avg.) is power coupled into a single‑mode fiber with master connector. 

2.      λc refer to wavelength selection, and corresponds to approximately 0.8 nm.

3.     Measured with conformance test signal for BER = 10‑12 @ 10.3125 Gbps, PRBS = 231‑1, NRZ, optical source with worst ER, wavelength between 1528.77 nm and 1563.86 nm; back to back.

 

Electrical Characteristics 

Parameter

Symbol

Min

Typ

Max

Unit

Note

Supply Voltage

Vcc

3.14

3.3

3.46

V


Supply Current

(Note 1)

Icc



450

mA

SFPP‑AT‑LP‑DXX‑80



550

SFPP‑AT‑LP‑DXX‑80A

Transmitter







Input Differential Impedance

Rin


100


Ω

2

Single Ended Data Input Swing

Vin‑pp

180


700

mV


Transmit Disable Voltage

VDis

2.0


Vcc

V

3

Transmit Enable Voltage

VEN

Vee


Vee+ 0.8

V


Transmit Disable Assert Time




10

µs


Receiver







Differential Data Output Swing

Vout‑pp

400


800

mV

4

LOS Output High Level

VLOS‑H

2.0


VCCHOST

V

5

LOS Output Low Level

VLOS‑L

Vee


Vee+0.8

V

5

Notes: 

1.      Measured with receive Pin=Psen, Vcc=3.3 V, operation temperature range, without air flow

2.      Connected directly to TX data input pins. AC coupled.

3.      Or open circuit.

4.      Into 100 Ω differential termination.

5.      Loss Of Signal is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.  


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