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DELTA ELECTRONICS, INC.

 

1 2008/1/15

Rev. 0A

www.deltaww.com

 

RoHS Compliant Multi-Rate CWDM SFP Transceiver for GbE and 
Fiber Channel with DDM Function 

FEATURES 

 

Compliant with SFP Transceiver SFF-8472 

MSA specification with internal calibration 

 

Multi-rate operation from 125 to 1250Mpbs 

 

3.3V Power Supply and TTL Logic 

Interface 

 

8 Wavelength 

(λ)

Uncooled CWDM DFB laser 

LD transmitter 

 

EEPROM with Serial ID Functionality 

 

Laser Class 1 Product which comply with the 

requirements of IEC 60825-1 and IEC 60825-2

 

Duplex LC Connector interface 

Description 

The LCP-1250 CWDM series are designed 

for coarse wavelength division multiplexing 
applications (CWDM) and hot pluggable SFP 
transceiver modules that data rates up to 1.25Gb/s. 
The LCP-1250 CWDM series are support GbE 
(1.25Gb/s) and 1x Fiber channel (1.062Gb/s). The 
selectiveness of center wavelength has 1470, 
1490, 1510, 1530, 1550, 1570, 1590, and 1610 nm.

The LCP-1250 CWDM series are designed to 

be compliant with SFF-8472 SFP Multi-source 
Agreement (MSA) with digital diagnostic 
monitoring functions: Temperature, V

CC

, TX 

optical power, TX laser bias current, and RX 
received optical power. 

The post-amplifier of the LCP-1250 CWDM 

series also includes a Loss of Signal (LOS) circuit 
that provides a TTL logic-high output when the 
received optical level is below a preset LOS 
Assert threshold. 

Applications 

 

Gigabit Ethernet 

 

Switch to Switch interface 

 

Switched backplane applications 

 

File server interface 

Performance 

 

LCP-1250D4MxxRB: 1470nm to 1610nm CWDM 

DFB laser transmitter and PIN receiver, 19dB 

link budget 

 

 

LCP-1250D4RxxRB: 1470nm to 1610nm CWDM 

DFB laser transmitter and PIN receiver, 24dB 

link budget 

 

 

LCP-1250D4VxxRB: 1470nm to 1610nm CWDM 

DFB laser transmitter and APD receiver, 30dB 

link budget   

Summary of Contents for Multi-Rate CWDM SFP Transceiver LCP-1250 CWDM

Page 1: ...bE 1 25Gb s and 1x Fiber channel 1 062Gb s The selectiveness of center wavelength has 1470 1490 1510 1530 1550 1570 1590 and 1610 nm The LCP 1250 CWDM series are designed to be compliant with SFF 8472 SFP Multi source Agreement MSA with digital diagnostic monitoring functions Temperature VCC TX optical power TX laser bias current and RX received optical power The post amplifier of the LCP 1250 CWD...

Page 2: ...mitter Differential Input Voltage VDT 0 5 2 4 V 1 Transmitter Disable Input High VDISH 2 VCC 0 3 V Transmitter Disable Input Low VDISL Vee 0 8 V Transmitter Fault Pull up Resistor RTX_FAULT 4 7 10 kΩ 2 Transmitter Fault Output High VTXFH 2 VCC 0 3 V Transmitter Fault Output Low VTXFL Vee 0 8 V Receiver Receiver Differential Output Voltage VDR 0 35 2 V 3 Receiver LOS Load RRXLOS 4 7 10 kΩ 2 LOS Out...

Page 3: ... Spectral Width 20dB σ 1 nm Side mode Suppression Ratio SMSR 30 dB Optical Rise Fall Time tr tf 260 psec 1 Relative Intensity Noise RIN 120 dB Hz Output Eye Compliant with IEEE 802 3z Receiver VCC 3 3V 5 Data Rate 1250Mb sec PRBS 27 1 NRZ Parameter Symbol Min Typ Max Unit Note Sensitivity Avg 1 25Gbps LCP 1250D4MxxRB LCP 1250D4RxxRB LCP 1250D4VxxRB PS 24 24 30 dBm 2 Input Optical Wavelength λ 1450...

Page 4: ...F 10uF 0 1uF 0 01uF 0 01uF 0 01uF 0 01uF 0 1uF 10uF RES1 RES1 100 Ohms RES1 RES1 RES1 10k Ohms 100 Ohms VCC Protocol Vcc SerDes IC Protocol IC PLD PAL Mod_def 2 Mod_def 1 Mod_def 0 3 3V 3 3V DELTA SFP Module Preamp Tx_Disable Quantizer Tx_Fault TD TD VeeT RD RD Rx_LOS VeeR Tx_Disable Tx_Fault Rx_LOS RES1 4 7k to 10k Ohms VccT VccR Laser Driver Depands on SerDes IC used EEPROM ...

Page 5: ...al ID interface 6 MOD DEF0 Module Definition 0 3 Note 3 Grounded in Module 7 Rate Select Not Connect 3 Function not available 8 LOS Loss of Signal 3 Note 4 9 VeeR Receiver Ground 1 Note 5 10 VeeR Receiver Ground 1 Note 5 11 VeeR Receiver Ground 1 Note 5 12 RD Inv Received Data Out 3 Note 6 13 RD Received Data Out 3 Note 7 14 VeeR Receiver Ground 1 Note 5 15 VccR Receiver Power 2 3 3 5 Note 7 16 Vc...

Page 6: ...on In the low state the output will be pulled to 0 8V 5 VeeR and VeeT may be internally connected within the SFP module 6 RD These are the differential receiver outputs They are AC coupled 100Ω differential lines which should be terminated with 100Ω differential at the user SERDES The AC coupling is done inside the module and is thus not required on the host board The voltage swing on these lines ...

Page 7: ... 5 LOS Assert Time t_loss_on 100 µsec 6 LOS Deassert Time t_loss_off 100 µsec 7 Serial ID Clock Rate f_serial_clock 100 kHz Notes 1 Time from rising edge of TX_DISABLE to when the optical output falls below 10 of nominal 2 Time from falling edge of TX_DISABLE to when the modulated optical output rises above 90 of nominal 3 From power on or negation of TX_Fault using TX Disable 4 Time from fault to...

Page 8: ...DELTA ELECTRONICS INC 8 2008 1 15 Rev 0A www deltaww com Package Outline Drawing Complies with 21 CFR 1040 10 and 1040 11 Made in x FS ...

Page 9: ...about the module s present operating conditions 2 wire address 1010000 X A0h 2 wire address 1010001 X A2h 0 0 55 Alarm and Warning Thresholds 56 bytes 95 Serial ID Defined by SFP MSA 96 bytes 56 95 Cal Constants 40 bytes 96 96 119 Real Time Diagnostic Interface 24 bytes 127 Vender Specific 32 bytes 120 127 Vender Specific 128 128 247 User Writable EEPROM 120 bytes 255 Reserved in SFP MSA 128 bytes...

Page 10: ... 63 CS1 Note 6 106 00 21 45 E 64 00 107 00 22 4C L 65 1A 108 00 23 54 T 66 00 109 00 24 41 A 67 00 110 00 25 20 68 SN Note 7 111 00 26 20 69 SN 112 00 27 20 70 SN 113 00 28 20 71 SN 114 00 29 20 72 SN 115 00 30 20 73 SN 116 00 31 20 74 SN 117 00 32 20 75 SN 118 00 33 20 76 SN 119 00 34 20 77 SN 120 00 35 20 78 SN 121 00 36 00 79 SN 122 00 37 00 80 SN 123 00 38 00 81 SN 124 00 39 00 82 SN 125 00 40...

Page 11: ...IOP 8 mA 2 24 25 2 TX Power High Alarm P 3 26 27 2 TX Power Low Alarm P 3 28 29 2 TX Power High Warning P 2 30 31 2 TX Power Low Warning P 2 dBm 3 32 33 2 RX Power High Alarm P0 3 34 35 2 RX Power Low Alarm PS 2 36 37 2 RX Power High Warning P0 2 38 39 2 RX Power Low Warning PS dBm 4 40 45 16 Reversed 56 91 36 External Calibration Constants 92 94 3 Reversed 95 1 Checksum 5 96 97 2 Real Time Temper...

Page 12: ... when Tx output power exceeds high alarm level 112 0 Tx Power Low Alarm Set when Tx output power is below low alarm level 113 7 Rx Power High Alarm Set when received power exceeds high alarm level 113 6 Rx Power Low Alarm Set when received power is below low alarm level 113 5 0 Reserved 116 7 Temp High Warning Set when internal temperature exceeds high warning level 116 6 Temp Low Warning Set when...

Page 13: ...ic Interference EMC FCC Class B EN 55022 Class B CISPR 22 5 2 Immunity Radio Frequency Electromagnetic Field EN 61000 4 3 IEC 1000 4 3 5 3 Immunity Electrostatic Discharge to the Duplex SC Receptacle EN 61000 4 2 IEC 1000 4 2 IEC 801 2 5 4 Electrostatic Discharge to the Electrical Pins MIL STD 883C Method 3015 4 EIAJ 1988 3 2B Version 2 Machine model 5 1 Satisfied with electrical characteristics o...

Page 14: ... 47 Single mode 1470nm 49 Single mode 1490nm 51 Single mode 1510nm 53 Single mode 1530nm 55 Single mode 1550nm 57 Single mode 1570nm 59 Single mode 1590nm X1 Link Budget M 19dB R 24dB V 30dB X2 61 Single mode 1610nm X3 RoHS Compliance R RoHS Compliant X4 Temperature Blank 5 to 70 degree C H 10 to 85 degree C T 40 to 85 degree C ...

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