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10G SFP+ DWDM 40 km

ASCENT DWDM ITU Channel SFP+ transceivers are designed for use in 10-Gigabit Ethernet links with distances up to 40 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.

    Up to 11.3 Gbps data rate

    Up to 40 km transmission distance on SMF

    DWDM EML laser and PIN receiver

    Metal enclosure, for lower EMI

    2-wire interface with integrated Digital Diagnostic monitoring

    Hot-pluggable SFP+ footprint

    Compliant with SFF 8431 and SFF 8472

    Compliant with SFP+ MSA with LC connector

    Single 3.3 V power supply

    Case operating temperature range: -40 °C to +85 °C (industrial) 0 °C to +70°C (commercial)

    Power dissipation < 1.6 W

Absolute Maximum Ratings

Parameter

Symbol

Min.

Typ.

Max.

Unit

Notes

Storage Temperature

Ts

‑40


85

°C


Relative Humidity

RH

5


95

%


Power Supply Voltage

Vcc

‑0.3


4.0

V


Signal Input Voltage


Vcc ‑ 0.3


Vcc + 0.3

V


Recommended Operating Conditions

Parameter

Symbol

Min.

Typ.

Max.

Unit

Notes

Case Operating Temperature

Tcase

0


70

°C

SFPP‑AT‑LP‑DXX‑40



‑40


85

°C

SFPP‑AT‑LP‑DXX‑40A

Power Supply Voltage

VCC

3.14

3.3

3.47

V


Data Rate

BR


10.3125


Gbps


Transmission Distance

TD



40

km


Coupled Fiber

Single‑mode fiber

9/125 µm SMF

Optical Characteristics

Parameter

Symbol

Min.

Typ.

Max.

Unit

Notes

Transmitter







Average Optical Power

Pout

‑1


+3

dBm

1

Optical 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


Side Mode Suppression Ratio

SMSR

30



dB


Average Launch Power (Laser Off)

Poff



‑30

dBm


Transmitter and Dispersion Penalty

TDP



2.0

dB


Output Eye Mask

Compliant with IEE 802.3ae




Receiver







Input Optical Wavelength

λc

1270


1610

nm


Receiver Sensitivity

Psen



‑16.0

dBm

3

Input Saturation Power (Overload)

Psat

0



dBm


LOS Assert 

LOSA

‑28



dBm


LOS De‑assert 

LOSD



‑19

dBm


LOS Detect Hysteresis

Phys

0.5



dB


Notes:  

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

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=2^31‑1, 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

Notes

Supply Voltage

VCC

3.14

3.3

3.46

V


Supply Current1

ICC



400

mA

SFPP‑AT‑LP‑DXX‑40





460

mA

SFPP‑AT‑LP‑DXX‑40A

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

Data Output Rise Time

tr

28



ps

5

Data Output Fall Time

tf

28



ps

5

LOS Output High Level

VLOS‑H

2.0


VCCHOST

V

6

LOS Output Low Level

VLOS‑L

Vee


Vee+0.8

V

6

Power Supply Rejection

PSR

100



mVPP

7

Notes:  

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

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

3. Or open circuit.

4. Into 100 ohms differential termination.

5. 20 – 80 %.

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

7. Receiver sensitivity is compliant with power supply sinusoidal modulation of 20 Hz to 1.5 MHz up to specified value applied through the recommended power supply filtering network.   


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