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DWDM 2.67G SFP Optical Transceiver
Baudcom DWDM SFP Transceiver exhibits excellent wavelength stability, supporting operation at 100 GHz channel, cost effective module. It is designed for DWDM SONET/ SDH, Gigabit Ethernet and Fiber- Channel applications.

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INFORMATION

Features

¨        Wavelength selectable to C-band ITU-T grid wavelengths            

¨        Suitable for use in 100GHz channel spacing DWDM systems

¨        DWDM SFP MSA Compliant

¨        Up to 2.67Gb/s data rate

¨        OC48 Long Reach 80km

¨        Cold Start up Wavelength Compliance

¨        Low Power Dissipation <1.3W Maximum

¨        -5oC to 70oC Operating Case Temperature

¨        Diagnostic Performance Monitoring of module temperature, supply

Voltages, laser bias current, transmit optical power, receive optical power,

Laser temperature and TEC current

¨        Extended link budget with APD receiver technology

¨        RoHS compliant and lead free

Applications

¨        SFP Transceivers for DWDM SONET/ SDH

¨        Ethernet IEEE 802.3ae

¨        Fiber Channel

Description

Baudcom DWDM SFP Transceiver exhibits excellent wavelength stability, supporting operation at 100 GHz channel, cost effective module. It is designed for DWDM SONET/ SDH, Gigabit Ethernet and Fiber- Channel applications.

The transceiver consists of two sections: The transmitter section incorporates a colded DFB laser. And the receiver section consists of a APD photodiode integrated with a TIA. All modules satisfy class I laser safety requirements. BAUDCOM DWDM SFP transceiver provides an enhanced monitoring interface, which allows real-time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical power and transceiver supply voltage, laser temperature and TEC current.

Absolute Maximum Ratings

Parameter

Symbol

Min

Max

Unit

Supply Voltage 1

Vcc3

-0.5

4.0

V

Supply Voltage 2

Vcc5

-0.5

6.0

V

Storage Temperature

Tst

-40

85

oC

Optical Input Received Power

PIN

-

+4

dBm

 

Operating Conditions

Parameter

Symbol

Min

Typical

Max

Unit

Supply Voltage 1

Vcc3

3.13

3.3

3.47

V

Supply current 1

Icc3

 

 

750

mA

Supply Voltage 2

Vcc5

4.75

5

5.25

V

Supply current 2

Icc5

 

 

500

mA

Operating Case temperature

Tca

-5

-

70

oC

Module Power Dissipation

Pm

-

 

3.5

W

 

Transmitter Specifications – Optical

Parameter

Symbol

Min

Typical

Max

Unit

Data Rate Multirate

Mra

155

 

2667

Mbps

Center Wavelength (SOL)

lc

lc -25

lc

lc +25

pm

Center Wavelength (EOL)

lc

lc -100

lc

lc+100

pm

Optical Transmit Power

Po

0

2

4

dBm

Optical Transmit Power (disabled)

PTX_DISABLE

-

-

-40

dBm

Extinction Ratio

ER

8.2

 

-

dB

Channel Spacing

∆f

-

100

-

GHz

Jitter Generation

TJP-P

-

-

70

mUI

Spectral Width (-20dB)

Dl20

-

0.1

0.3

nm

Side Mode Suppression Ratio

SMSR

30

-

-

dB

Eye Mask

Compliant with Bell core GR-253-CORE & ITU G.957 for SONET/SDH and with IEEE 802.3ae for Ethernet and Fibre Channel

Laser- Start of Life

Laser End of life

 

Transmitter Specifications – Electrical

Parameter

Symbol

Min

Typical

Max

Unit

Supply Voltage

VccTX

3.13

3.3

3.47

V

PECL/CML Input

VtxDIFF

500

-

1600

mV

Input Rise/Fall

TR / TF

-

-

160

ps

TX-Fault Fault

Vf

2

-

Vcc

V

TX-Fault Normal

Vn

Vee

-

Vee+0.5

V

TX_DISABLE

(asserted)

VDH

2

-

Vcc

V

TX_DISABLE (negated)

VDL

Vee

-

Vee+0.8

V


APD Receiver Specifications – Optical

Parameter

Symbol

Min

Typical

Max

Unit

Receiver Sensitivity

(OC48)

 

-

-30

-28

dBm

Maximum Input Power

RX-overload

-9

-

-

dBm

Input Operating Wavelength

λ

1528

-

1564

nm

Reflectance

Rrx

-

-

-27

dB

Loss of Signal Asserted

 

-40

-

-

dBm

LOS De-Asserted

 

-

-

-32

dBm

LOS Hysteresis

 

0.5

-

-

dB

 

APD Receiver Specifications – Electrical

Parameter

Symbol

Min

Typical

Max

Unit

Supply Voltage

VccRX

3.13

3.3

3.47

V

Differential Output Swing

Vout P-P

370

-

2000

mV

Rise/Fall Time

Tr / Tf

-

-

175

ps

Loss of Signal –Asserted

VOH

2

-

Vcc

V

Loss of Signal –Negated

VOL

Vee

-

Vee+0.5

V



Low Speed Electrical Signal Timings

Parameter

Symbol

Min

Typical

Max

Unit

TX Disable Negate Time

t-on

-

-

20

ms

TX Disable Assert Time

t-off

-

-

20

ms

Time to initialize, including reset of TX_FAULT

t_init

 

-

-

300

ms

Start-up Time

t_startup

-

-

90

s

TX_FAULT/INT Assert Time

t_fault

-

-

50

ms

TX_DISABLE to Reset

t_reset

10

-

-

ms

LOS Assert Time

t_los_on

-

-

100

us

LOS Negate Time

t_los_off

-

-

100

us

Serial ID Clock Rate

f_serial_clock

-

-

100

kHz

C-band λc Wavelength Guide

ITU Channel

Product Code

Frequency(THz)

Wavelength

ITU Channel

Product Code

Frequency(THz)

Wavelength

17

191.7

1563.86

40

194.0

1545.32

18

191.8

1563.05

41

194.1

1544.53

19

191.9

1562.23

42

194.2

1543.73

20

192.0

1561.42

43

194.3

1542.94

21

192.1

1560.61

44

194.4

1542.14

22

192.2

1559.79

45

194.5

1541.35

23

192.3

1558.98

46

194.6

1540.56

24

192.4

1558.17

47

194.7

1539.77

25

192.5

1557.36

48

194.8

1538.98

26

192.6

1556.55

49

194.9

1538.19

27

192.7

1555.75

50

195.0

1537.40

28

192.8

1554.94

51

195.1

1536.61

29

192.9

1554.13

52

195.2

1535.82

30

193.0

1553.33

53

195.3

1535.04

31

193.1

1552.52

54

195.4

1534.25

32

193.2

1551.72

55

195.5

1533.47

33

193.3

1550.92

56

195.6

1532.68

34

193.4

1550.12

57

195.7

1531.90

35

193.5

1549.32

58

195.8

1531.12

36

193.6

1548.51

59

195.9

1530.33

37

193.7

1547.72

60

196.0

1529.55

38

193.8

1546.92

61

196.1

1528.77

39

193.9

1546.12

 

 

 

EEPROM Serial ID Memory Contents (A0h):

Data Address

Field Size

(Bytes)

Value

Name of

Field

Description and Contents

Base ID Fields

0

1

0Bh

Identifier

Type of Serial transceiver

1

1

24h

Ext. Identifier

Extended identifier of type serial transceiver

2

1

07h

Connector

Code of optical connector type

3-10

8

00h,0Ch,44h,00h, 80h,10h,01h,00h

Transceiver

Code for electronic compatibility or optical compatibility

11

1

03h

Encoding

Code for serial encoding algorithm

12

1

19h

BR,Nominal

Nominal baud rate, unit of 100Mbps

13-14

2

78h(120km)

Length (9μm) – km

Link length supported for 9/125μm fiber, units in km

15

1

46h

Max Temp

Maximum operating case temperature in °C

16

1

FBh

Min Temp

Minimum operating case temperature in °C

17

1

5Fh

Max Supply Current

Maximum supply current in units of 4mA

18

1

00h

Reserved

-

19

1

41h

Channel spacing  and number

Channel spacing compatibility and number and tuning of ITU channels supported

20-35

16

Module dependent

Vendor Name

SFP vendor name: “BAUDCOM” (ASCII)

36

1

02h

Reserved

Optional DWDM features

37-39

3

-

Vendor OUI

SFP transceiver vendor IEEE company ID

40-55

16

GPD-XXXX-XX

Vendor PN

Part number provided by SFP transceiver

vendor  (ASCII)

56-59

4

Module dependent

Vendor rev

Revision level for part number provided by vendor  (ASCII)

60-61

2

Module dependent

wavelength

Laser wavelength (in nm)

62

1

Module dependent

wavelength

Laser wavelength (fractional part in units of 10pm)

63

1

Module dependent

CC_BASE

Check sum of bytes 0 - 62

Extended ID Fields

64-65

2

1Ah

Option

Indicates which optical SFP signals are implemented

66

1

00h

BR, max

Upper bit rate margin, units of %

67

1

00h

BR, min

Lower bit rate margin, units of %

68-83

16

Module dependent

Vendor SN

Serial number (ASCII)

84-91

8

Module dependent

Date code

Year(2 bytes), Month(2 bytes), Day (2 bytes)

92

1

68h

Diagnostic type

Indicates the type of diagnostics implemented in Monitoring Type the transceiver

93

1

F0h

Enhanced option

Indicates which optional enhanced features Options are implemented

94

1

01h

SFF-8472

“01” Diagnostics(SFF-8472 Rev 9.3)

95

1

Module dependent

CC_EX

Check sum of bytes 64 - 94

Vendor Specific ID fields

96-127

32

-

Vendor Specific

Vendor Specific EEPROM (Vendor specific data; Specific read only)

128-255

128

-

Reserved

Reserved for future use

 

 Serial ID Memory Contents: (A2H)

Address

# Bytes

Name

Description

00-55

56

Alarm and Warning Levels

Temp/ Vcc/ Bias Current /TX Power/ RX Power/ LD Temp/ TEC Current, High/Low Alarm and Warning Levels

56-94

39

 

Not used in DWDM devices. All Bytes Set to 0.

95

1

Checksum

Low order 8 bits of the sum of bytes 0-94

96-109

8

A/D Values

A/D binary values of the following enhanced diagnostics(Real-time):

module temperature, supply voltage, laser bias current, transmit optical power, receive optical power, laser temperature and TEC current. These values are Internally calibrated absolute measurements. All diagnostic parameters implemented in these address locations have a corresponding high and low, alarm and warning thresholds assigned in address locations 00-55.

110

1

Soft Control Signals

Soft control signals monitored over the 2-wire access port. can updated real-time status of the following control signals: TX_FAULT, TX_DISABLE, Rate Select, and LOS.

111

1

Reserved

Reserved

112-117

5

Alarm/Warning Flags

Optional Alarm and Warning Flag and Mask Bits Corresponding to levels detailed in addresses 00-39 above.

118-119

2

Warning Mask

Masking bits corresponding to Warning bits of bytes 116 and 117 respectively

120-126

8

Vendor Specific

Vendor specific data

127

1

Table Select

The byte value defines the Table location for subsequent reads

and writes to bytes locations 128-255

128-247

120

User EEPROM

User writable EEPROM

248-255

8

Vendor Specific

Vendor specific control functions

 

Digital Diagnostic Monitoring A/D Accuracy

Parameter

Range

Accuracy

Unit

Temperature

-40~100

± 3

Voltage

0~Vcc

0.1

V

Bias Current

0~120

5

mA

TX Power

0~5

± 2

dBm

RX Power

-32~-8

± 2

dBm

TEC Current

-1200~1200

± 65

mA

LD Temperature

20~70

± 0.25

 

Pin Definitions

Pin Number

Name

Function

Ref.

1

VEET

Transmitter Ground

 

2

TX_FAULT/INT

Transmitter Fault

1

3

TX_DISABLE

Transmitter Disable

2

4

MOD-DEF(2)

Module Definition 2

3

5

MOD-DEF(1)

Module Definition 1

3

6

MOD-DEF(0)

Module Definition 0

3

7

Tone in

Rate Select -Not Implemented

 

8

LOS

Loss of Signal

4

9

VEER

Receiver Ground

 

10

VEER

Receiver Ground

 

11

VEER

Receiver Ground

 

12

RD-

Inverted Received

 

13

RD+

Received Data

 

14

VEER

Receiver Ground

 

15

VCCR

Receiver Power

 

16

VCCT

Transmitter Power

 

17

VEET

Transmitter Ground

 

18

TD+

Transmit Data

 

19

TD-

Inverted Transmit

 

20

VEET

Transmitter Ground

 

Notes

1. TX Fault is an open collector/drain output, which should be pulled up with a 4.7K – 10K. resistor on the host board. Pull up voltage between 2.0V and VccT, R+0.3V. When high, output indicates a laser fault of some kind. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.

2. TX disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7 – 10 K. resistor.

3. These are the module definition pins. They should be pulled up with a 4.7K – 10K. resistor on the host board. The pull-up voltage shall be VccT or VccR (see Section IV for further details).

4. LOS (Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7K – 10K. resistor. Pull up voltage between 2.0V and VccT, R+0.3V. When high, this output indicates the received optical power is below the worst-case receiver sensitivity (as defined by the standard in use). Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.


                                               Figure1.Electrical Pin-out Details

      Figure2.Power-on initialisation of DWDM SFP transceiver


                 Figure3. Block Diagram of DWDM-SFP

      Figure4. Recommended Host Board Supply Filtering Network

                    Figure5. Mechanical Dimensions


Regulatory Compliance

Baudcom SFP-DWDM transceiver is designed to be Class I Laser safety compliant and is certified per the following standards:

Feature

Agency

Standard

Certificate / Comments

Laser Safety

FDA

CDRH 21 CFR 1040 annd Laser Notice No. 50

1120288-000

Product Safety

BST

EN 60825-12007    

EN 60825-22004    

EN 60950-12006

BST09082331721C-2

Environmental protection

CCIC

RoHS Directive 2002/95/EC

RET090616001

EMC

WALTEK

EN 55022:2006+A1:2007

EN 55024:1998+A1+A2:2003 -

WT10093768-D-E-E

 

References

1.   Small Form Factor Pluggable Module (SFP) Multi-Source Agreement (MSA), September 2000.

2.   IEEE802.3ae – 2002

3.   Telcordia GR-253-CORE

4.   Diagnostic Monitoring Interface for Optical Transceivers SFF-8472, Rev 9.3.

Important Notice

Performance figures, data and any illustrative material provided in this data sheet are typical and must be

specifically confirmed in writing by BAUDCOM before they become applicable to any particular order or

contract. In accordance with the BAUDCOM policy of continuous improvement specifications may change

without notice.

The publication of information in this data sheet does not imply freedom from patent or other protective rights of BAUDCOM or others. Further details are available from any BAUDCOM sales representative.



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