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10G SFP+ CWDM 10 km

ASCENT’s CWDM SFP+ transceivers are designed for use in 10-Gigabit Ethernet links with distances up to 10 km over single-mode fiber. These transceivers include a PIN photo detector diode and uncooled CWDM DFB laser transmitter. Digital diagnostic functions are available via an I2C interface. This module is designed for single-mode fiber and operates at wavelengths between 1270 nm to 1610 nm.

    Up to 11.3 Gbps Data Links

    Up to 10 km transmission on SMF

    Power dissipation < 1.5W

    Uncooled CWDM DFB Laser and PIN 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 3.3V power supply

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

    Compliant to 802.3ae 10GBASE-LR/LW


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

Tcase

0

70

°C

Without air flow

Power Supply Voltage

VCC

3.14

3.3

3.47

V


Power Supply Current

ICC


450

mA


Data Rate

BR


10.3125

11.3

Gbps


Transmission Distance

TD


10

km


Coupled fiber

Single mode fiber

9/125 µm SMF

 

Optical Characteristics 

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Transmitter







Output Opt. Power

POUT

‑6


‑0.5

dBm

1

Optical Wavelength

λ

λ‑6.5


λ+6.5

nm

2

Spectral Width (‑20dB)

σ



1

nm


Optical Extinction Ratio

ER

3.5



dB


Side mode Suppression ratio

SMSR

30



dB


Output Eye Mask


Compliant with IEEE 802.3ae


Receiver







Receiver Sensitivity 

Psen



‑14.4

dBm

3

Input Saturation Power (Overload)

PSAT

0.5



dBm


Input Optical Wavelength

λIN

1270


1610

nm


LOS Assert 

LOSA

‑30



dBm


LOS De‑assert 

LOSD



‑17

dBm


LOS ‑Hysteresis

PHys

0.5



dB


Notes:  

1. Class 1 Laser Safety per FDA/CDRH and IEC‑825‑1 regulations.

2. λ is: 1270, 1290, 1310, 1330, 1350, 1370, 1390, 1410, 1430, 1450, 1470, 1490, 1510, 1530, 1550, 1570, 1590, 1610.

3. Measured with a PRBS 231‑1 test pattern, @ 10.325Gb/s, BER<10‑12

 

Electrical Characteristics 

Parameter

Symbol

Min

Typ.

Max

Unit

Note

Supply Voltage

Vcc

3.14

3.3

3.46

V


Supply Current

Icc



450

mA


Transmitter







Input differential impedance

Rin


100


Ω

1

Differential data input swing

Vin, pp

180


1200

mV


Transmit Disable Voltage

VD

Vcc–1.3


Vcc

V


Transmit Enable Voltage

VEN

Vee


Vee+ 0.8

V

2

Transmit Disable Assert Time




10

us


Receiver







Differential data output swing

Vout, pp

300


850

mV

3

Data output rise time

tr

30



ps

4

Data output fall time

tf

30



ps

4

LOS Fault

VLOS fault

Vcc–1.3


VccHOST

V

5

LOS Normal

VLOS norm

Vee


Vee+0.8

V

5

Notes: 

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

2. Or open circuit.  

3. Input 100 Ω differential termination.  

4. These are unfiltered 20 % to 80 % values

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


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