10G SFP+ CWDM 20km

HXSC-ALxx21I-R85

Features
Up to 11.3Gb/s data links 
CWDM DFB transmitter and VCSEL receiver
Up to 20km on 9/125µm SMF
Hot-pluggable SFP+ footprint
Duplex LC/UPC type pluggable optical interface
RoHS-10 compliant and lead-free
Support Digital Diagnostic Monitoring interface
Single +3.3V power supply
Compliant with SFF+MSA and SFF-8472
Metal enclosure, for lower EMI
Meet ESD requirements, resist 8KV direct contact voltage
Case operating temperature

 

 

Applications
10GBASE-LR/LW & 10G Ethernet
SDH STM64
Other Optical Links

 

 

HXSC-ALxx21I-R85 SFP+ transceiver is designed for use in 10-Gigabit Ethernet links up to 20km over single mode fiber. The module consists of CWDM DFB Laser, 850nm VCSEL and Preamplifier in a high-integrated optical sub-assembly. Digital diagnostics functions are available via a 2-wire serial interface, as specified in SFF-8472.

HXSC-ALxx21I-R85 transceivers provide a unique enhanced digital diagnostic monitoring interface, which allows real-time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power, and received optical power and transceiver supply voltage. It also defines a sophisticated system of alarm and warning flags, which alerts end-users when particular operating parameters are outside of a factory set normal range.

The SFP+ MSA defines a 256-byte memory map in EEPROM that is accessible over a 2-wire serial interface at the 8 bit address 1010000X (A0h). The digital diagnostic monitoring interface makes use of the 8 bit address 1010001X (A2h), so the originally defined serial ID memory map remains unchanged.

 

 

Pin Assignment and Pin Description

 

 

Figure1. Diagram of host board connector block pin numbers and names

 

Pin

Symbol

Name/Description

Notes

1

VEET

Transmitter Ground  (Common with Receiver Ground)

1

2

TFAULT

Transmitter Fault.

2

3

TDIS

Transmitter Disable. Laser output disabled on high or open.

3

4

SDA

2-wire Serial Interface Data Line

4

5

SCL

2-wire Serial Interface Clock Line

4

6

MOD_ABS

Module Absent. Grounded within the module

4

7

RS0

Rate Select 0

5

8

LOS

Loss of Signal indication.  Logic 0 indicates normal operation.

6

9

RS1

No connection required

 

10

VEER

Receiver Ground  (Common with Transmitter Ground)

1

11

VEER

Receiver Ground  (Common with Transmitter Ground)

1

12

RD-

Receiver Inverted DATA out.  AC Coupled

 

13

RD+

Receiver Non-inverted DATA out.  AC Coupled

 

14

VEER

Receiver Ground  (Common with Transmitter Ground)

1

15

VCCR

Receiver Power Supply

 

16

VCCT

Transmitter Power Supply

 

17

VEET

Transmitter Ground  (Common with Receiver Ground)

1

18

TD+

Transmitter Non-Inverted DATA in. AC Coupled.

 

19

TD-

Transmitter Inverted DATA in.  AC Coupled.

 

20

VEET

Transmitter Ground  (Common with Receiver Ground)

1

 Notes: 
1. Circuit ground is internally isolated from chassis ground. 
2. TFAULT is an open collector/drain output, which should be pulled up with a 4.7kΩ-10kΩ resistor on the host board if intended for use. Pull up voltage should be between 2.0V to Vcc + 0.3V.A high output indicates a transmitter fault caused by either the TX bias current or the TX output power exceeding the preset alarm thresholds. A low output indicates normal operation. In the low state, the output is pulled to <0.8V. 
3. Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V. 
4. Should be pulled up with 4.7kΩ-10kΩ on host board to a voltage between 2.0V and 3.6V. MOD_ABS pulls line low to indicate module is plugged in. 
5. Internally pulled down per SFF-8431 Rev 4.1. 
6. LOS is open collector output. It should be pulled up with 4.7kΩ-10kΩ on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.

 

 

Mechanical Dimensions

 

 

性能参数

Absolute Maximum Ratings

It has to be noted that the operation in excess of any individual absolute maximum ratings might cause permanent damage to this module. 

 

Parameter

Symbol

Min

Max

Unit

Notes

Storage Temperature

TS

-50

85

oC

 

Power Supply Voltage

VCC

-0.5

3.6

V

 

Relative Humidity (non-condensation)

RH

5

95

%

 

Damage Threshold

THd

5

 

dBm

 

 

 

Recommended Operating Conditions and Power Supply Requirements

 

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Operating Case Temperature

TOP

-50

 

85

oC

Industrial

Power Supply Voltage

VCC

3.135

3.3

3.465

V

 

Data Rate

 

 

10.3125

 

Gb/s

 

Control Input Voltage High

 

2

 

Vcc

V

 

Control Input Voltage Low

 

0

 

0.8

V

 

Link Distance (SMF)

D

 

 

20

km

9/125um

 

 

 

Electrical Characteristics

The following electrical characteristics are defined over the Recommended Operating Environment unless otherwise specified.

 

Parameter

Symbol

Min.

Typ.

Max

Unit

Notes

Power Consumption

p

 

 

1.5

W

 

Supply Current

Icc

 

 

450

mA

 


Transmitter

Single-ended Input Voltage Tolerance

Vcc

-0.3

 

4.0

V

 

AC Common Mode Input Voltage Tolerance (RMS)

 

15

 

 

mV

 

Differential Input Voltage Swing

Vin,pp

120

 

850

mVpp

 

Differential Input Impedance

Zin

90

100

110

Ohm

1

Transmit Disable Assert Time

 

 

 

10

us

 

Transmit Disable Voltage

Vdis

Vcc-1.3

 

Vcc

V

 

Transmit Enable Voltage

Ven

Vee

 

Vee +0.8

V

2

Receiver

Differential Output Voltage Swing

Vout,pp

300

 

850

mVpp

 

Differential Output Impedance

Zout

90

100

110

Ohm

3

Data output rise/fall time

Tr/Tf

28

 

 

ps

4

LOS Assert Voltage

VlosH

Vcc-1.3

 

Vcc

V

5

LOS De-assert Voltage

VlosL

Vee

 

Vee +0.8

V

5

Power Supply Rejection

PSR

100

 

 

mVpp

6

Notes:

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

2. Or open circuit.   

3. Input 100 ohms differential termination.   

4. These are unfiltered 20-80% values.  

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

6. 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.   

 

 

Optical Characteristics

 

Parameter

Symbol

Min.

Typical

Max

Unit

Notes

Transmitter

Center Wavelength

λ

λ -6.5

 

λ +6.5

nm

1

Optical Spectral Width

λ

 

 

1

nm

 

Side Mode Suppression Ratio

SMSR

30

 

 

dB

 

Average Optical Power

PAVG

-3

 

3

dBm

2

Optical Extinction Ratio

ER

3.5

 

 

dB

 

Transmitter and Dispersion Penalty

TDP

 

 

3.2

dB

 

Relative Intensity Noise

RIN

 

 

-128

dB/Hz

 

Transmitter Eye Mask

Compliant with IEEE802.3ae

 

Receiver

Center Wavelength

λ

770

850

860

nm

 

Receiver Sensitivity (Average Power)

Sen.

 

 

-11

dBm

3

Input Saturation Power (overload)

Psat

0.5

 

 

dBm

 

LOS Assert

LOSA

-30

 

 

dBm

 

LOS De-assert

LOSD

 

 

-14

dBm

 

LOS Hysteresis

LOSH

0.5

 

 

dB

 

The following optical characteristics are defined over the Recommended Operating Environment unless otherwise specified.

Notes:

1.  λ refer to wavelength selection, 1270~1450nm please the “product selection.

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

3. Measured with Light source 1270~1450nm, ER=3.5dB; BER =<10^-12 @10.3125Gbps, PRBS=2^31-1 NRZ.

 

 

Digital Diagnostic Functions

The following digital diagnostic characteristics are defined over the Recommended Operating Environment unless otherwise specified. It is compliant to SFF-8472 Rev10.2 with internal calibration mode. For external calibration mode please contact our sales staff.

 

Parameter

Symbol

Min.

Max

Unit

Notes

Temperature monitor absolute error

DMI_ Temp

-3

3

degC

Over operating temp

Supply voltage monitor absolute error

DMI _VCC

-0.15

0.15

V

Full operating range

RX power monitor absolute error

DMI_RX

-3

3

dB

 

Bias current monitor

DMI_ bias

-10%

10%

mA

 

TX power monitor absolute error

DMI_TX

-3

3

dB