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10G SFP+ LR 1310 nm 20 km

ASCENT’s SFPP-ATLP-31-20 Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). The transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the 1310nm FP laser and the PIN photo-detector. The module data link up to 20 km using 9/125 µm single-mode fiber. The optical output can be disabled by a TTL logic high-level input of Tx Disable, and the system also can disable the module via I2C. Tx Fault is provided to indicate that degradation of the laser. Loss Of signal (LOS) output is provided to indicate the loss of an input optical signal of receiver or the link status with partner. The system can also get the LOS (or Link)/Disable/Fault information via I2C register access. The metal housing ensures low EMI interference standards, with connector retainer.

    Up to 11.32 Gbps Data Links

    Up to 20 km transmission on SMF

    1310 nm DFB Laser and PIN/TIA receiver

    Metal enclosure, for lower EMI

    2-wire interface with integrated Digital Diagnostic monitoring

    Hot-pluggable SFP+ footprint

    Compliant with SFP+ MSA with LC connector

    Single 3.3 V power supply

    Case operating temperature range: 0°C to 70°C

    Power dissipation < 1.2 W

    10GBASE-LR/LW & 10G Ethernet

    Compliant with SFF-8431

    Compliant with SFF 8472

    RoHS compliant


Absolute Maximum Ratings

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Storage Temperature

TS

‑40


85

°C


Storage Ambient Relative Humidity

HA

0


85

%


Power Supply Voltage

VCC

‑0.5


4

V


Signal Input Voltage


‑0.3


Vcc+0.3

V


Receiver Damage Threshold


+3



dBm


Lead Soldering Temperature/Time

TSOLD



260/10

°C/sec

1

Lead Soldering Temperature/Time

TSOLD



360/10

°C/sec

2

Notes

1. Suitable for wave soldering.

2. Only for soldering by iron.

 

Recommended Operating Conditions

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Case Operating Temperature

Tcase

0
-40


70
+85

°C

Commercial
Industrial

Ambient Humidity

HA

5


70

%

Non‑condensing

Data Rate


10.3125/10.3125

Gbps

TX Rate/RX Rate

Transmission Distance




20

km


Coupled Fiber


Single‑mode fiber


9/125 µm G.652

 

Optical Characteristics                                                                

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Transmitter

Average Output Power

POUT

‑8.2


+0.5

dBm


Extinction Ratio

ER

3



dB


Center Wavelength

λC

1290

1310

1330

nm

DFB Laser

Side Mode Suppression Ratio

SMSR

30



dBm

DFB Laser

Spectrum Width (RMS)

σ



1

nm


Transmitter OFF Output Power

POff



‑30

dBm


Output Eye Mask

Compatible with IEEE 802.3ae



Receiver

Input Optical Wavelength

λIN

1260


1600

nm


Rx Sensitivity

RSENS1



‑15

dBm

1

Rx Sensitivity (OMA)

RSENS2



‑10.3

dBm

2

Input Saturation Power (Overload)

PSAT

‑3



dBm


Loss of Signal Assert

PA

‑30



dBm


Loss of Signal De‑assert

PD



‑15.4

dBm


LOS Hysteresis

PD‑PA

0.5


6

dB


Notes:

1. With worst‑case extinction ratio. Measured with a PRBS 231‑1 test pattern, @10.3125 Gb/s, BER < 10‑12.

2. Valid between 1260 nm and 1355 nm. Per IEEE 802.3ae.

 

Digital Diagnostic Memory Map

436-5.jpeg

 

Digital Diagnostic Monitoring Information

Parameter

Unit

Accuracy

Case Temperature

°C

±3

Supply Voltage

V

±3%

Tx Bias Current

mA

±10%

Tx Optical Power

dB

±3

Rx Optical Power

dB

±3

 

Electrical Interface Characteristics

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Supply Voltage

VCC

3.1

3.3

3.5

V


Supply Current

ICC


200

285

mA


Transmitter

Input Different Impedance

Rin

90

100

110

Ω

1

Single‑Ended Data Input Swing

Vin, pp

180


700

mV


Transmitter Disable Voltage

VDIS

2


VCC

V


Transmitter Enable Voltage

VEN

0


0.8

V


Receiver

Output Difference Impedance

Rout

90

100

110

Ω

1

Single‑Ended Data Output Swing

Vout, pp

300


850

mV

2

LOS Asserted

VLOSA

2


VCCHOST

V

3

LOS De‑Asserted

VLOSD

0


0.8

V

3

Notes:

1. Connected directly to TX data input pins. AC coupled thereafter.

2. Into 100 Ω differential termination.

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

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