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DELTA ELECTRONICS, INC.

 

5 Nov., 

2006

Rev. 1D

www.deltaww.com

 

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. Its states are: 

Low (0 – 0.8V):     

Transmitter on   

(>0.8, < 2.0V):   

 

Undefined 

High (2.0 – 3.465V):   

Transmitter Disabled   

Open: 

 

   Transmitter 

Disabled 

3)  Mod-Def 0,1,2. 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). Mod-Def 0 is grounded 
by the module to indicate that the module is present Mod-Def 1 is the clock line of two wire serial interface for 
serial ID Mod-Def 2 is the data line of two wire serial interface for serial ID 

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. 

5)  VeeR and VeeT may be internally connected within the SFP module. 
6)  RD-/+: These are the differential receiver outputs. They are AC coupled 100

 differential lines which should be 

terminated with 100

 (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 will be between 370 and 2000 mV differential 
(185 – 1000 mV single ended) when properly terminated. 

7)  VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V ±5% at the SFP 

connector pin. Maximum supply current is 300mA. Recommended host board power supply filtering is shown 
below. Inductors with DC resistance of less than 1

=should be used in order to maintain the required voltage at the 

SFP input pin with 3.3V supply voltage. When the recommended supply-filtering network is used, hot plugging of 
the SFP transceiver module will result in an inrush current of no more than 30mA greater than the steady state 
value. VccR and VccT may be internally connected within the SFP transceiver module. 

8)  TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100

 

differential termination inside the module. The AC coupling is done inside the module and is thus not 
required on the host board. The inputs will accept differential swings of 500 – 2400 mV (250 – 1200 
mV single-ended), though it is recommended that values between 500 and 1200 mV differential (250 – 
600 mV single-ended) be used for best EMI performance. 

Summary of Contents for LCP-2125 Series

Page 1: ...or transceiver modules designed expressly for high speed communication applications that require rates up to 2 125Gb s The transceiver is data rate transparent which means it can support 2x Fiber channel as well as GbE 1 25Gb s and 1x Fiber channel 1 062Gb s The LCP 2125 series are designed to be compliant with SFF 8472 SFP Multi source Agreement MSA with digital monitoring functions Temperature V...

Page 2: ...T 0 5 2 4 V 1 Transmitter Disable Input High VDISH 2 VCC 0 3 V Transmitter Disable Input Low VDISL 0 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 0 0 8 V Receiver Receiver Differential Output Voltage VDR 0 35 2 0 V 3 Receiver LOS Load RRXLOS 4 7 10 kΩ 2 LOS Output Voltage High VLOSH 2 VCC 0 3 V LOS...

Page 3: ...tical Rise Fall Time tr tf 150 psec 1 Output Eye Complies with the ANSI FC PI Rev 13 specification and is class 1 laser eye safety Receiver Sensitivity Avg PIN 17 dBm 2 Input Optical Wavelength λ 850 nm LOS Deasserted Avg PA 17 dBm LOS Asserted Avg PD 30 dBm LOS Hysteresis PA PD 0 5 dB Overload PO 3 dBm Notes 1 These are 20 80 values 2 The sensitivity is provided at a BER of 1 10 10 or better with...

Page 4: ...l 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 Vcc...

Page 5: ...ion 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 6: ... 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 7: ...DELTA ELECTRONICS INC 7 Nov 2006 Rev 1D www deltaww com Package Outline Drawing ...

Page 8: ...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 9: ...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 Note 128 128 247 User Writable EEPROM 120 bytes 255 Reserved in SFP MSA 128 bytes 248 255 Vender Specific 8 bytes Digital Diagnostic Memory Map Specific Da...

Page 10: ...5 E 64 00 107 00 22 4C L 65 1A 108 00 23 54 T 66 05 109 00 24 41 A 67 05 110 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 PN Note4 83 SN 126 00 41 ...

Page 11: ...3 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 Temperatur...

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: ...X1X2X3X4X5X6 X1 Fiber A Multi mode 850nm X4 Digital Diagnostic Function D DDM series with digital diagnostic function X2 Power Supply Voltage and SD Level 4 3 3V TTL SD Level X5 Housing Type R RoHS Compliant X3 Distance E 300m X6 Temperature Blank 5 to 70 degree C H 10 to 85 degree C T 40 to 85 degree C ...

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