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RoHS Compliant Small Form Factor Pluggable Transceiver for Gigabit Ethernet and Fiber Channel
FEATURES
Compliant with SFP Transceiver MSA specification Compliant with Specifications for IEEE 802.3z/Gigabit Ethernet LCP-1250Bxxx compliant with the 1.0625GBd Fiber Channel 100-SM-LC-L FC-PI Rev.13 LCP-1250Axxx compliant with the 1.0625GBd Fiber Channel FC-PI 100-M5-SN-I Rev.13 Compliant with Industry Standard RFT Electrical Connector and Cage Single + 3.3V Power Supply and TTL Logic Interface 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-1250xxxx series are hot pluggable 3.3V Small-Form-Factor transceiver module designed expressly for high-speed communication applications that require rates of up to 1.25Gbit/sec. It is compliant with the Gigabit Ethernet standards, as well as the SFP Multisource Agreement (MSA). The LCP-1250xxxx transceivers provide with the LC receptacle that is compatible with the industry standard LC connector. The transceiver is also compatible with industry standard RFT connector and cage. The post-amplifier of the LCP-1250xxxx also includes a LOS (Loss Of Signal) circuit that provides a TTL logic-high output when an unusable optical signal level is detected. The LCP-1250xxxx transceiver is a Class 1 eye safety product. The optical power levels, under normal operation, are at eye safe level.
Applications
Gigabit Ethernet Fibre channel Switch to Switch interface Switched backplane applications File server interface
Performance
LCP-1250A4FSRA
Data Link up to 550m in 50/125m Multi Mode Fiber Data Link up to 275m in 62.5/125m Multi Mode Fiber
LCP-1250B4QSRA
Data Link up to 10km in 9/125m Single Mode Fiber
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DELTA ELECTRONICS, INC.
Dec., 2006 Rev. 0C
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Absolute Maximum Ratings
Parameter Storage Temperature Supply Voltage Symbol Ts VCC Min. -40 0 Typ. Max. 85 5 Unit C V Note
Recommended Operating Conditions
Parameter Case Operating Temperature Supply Voltage Symbol TC VCC Min. -5 3.135 Typ. Max. 70 3.465 Unit C V Note
Electrical Characteristics
(VCC=3.135V to 3.465V) Parameter Total Supply Current LCP-1250Axxx LCP-1250Bxxx Transmitter Transmitter Differential Input Voltage Transmitter Disable Input-High Transmitter Disable Input-Low Transmitter Fault Output-High Transmitter Fault Output-Low Receiver Receiver Differential Output Voltage LOS Output Voltage-High LOS Output Voltage-Low Output Data Rise/Fall Time Total Jitter (pk-pk) Symbol ICCT VDT VDISH VDISL VTXFH VTXFL VDR VLOSH VLOSL tr / tf TJRX 0.5 2 0 2 0 0.35 2 0 0.7 Min. Typ. 180 180 Max. 300 300 2.4 VCC+0.3 0.8 VCC+0.3 0.8 2 VCC+0.3 0.8 400 220 Unit mA V V V V V V V V psec psec 1 2 2 3 2 2 4 Note
Notes: 1. Internally AC coupled and terminated to 100Ohm differential load. 2. Pull up to VCC with a 4.7K - 10K Ohm resistor on host Board 3. Internally AC coupled, but requires a 100 Ohm differential termination at or internal to Serializer/ Deserializer. 4. These are 20%~80% values
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DELTA ELECTRONICS, INC.
Dec., 2006 Rev. 0C
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Optical Characteristics (LCP-1250A4FSRA)
(VCC=3.135V to 3.465V, Data Rate=1.25 Gb/sec, PRBS=27-1 NRZ, 50/125m or 62.5/125m MMF) Parameter Transmitter Output Optical Power (Avg.) Optical Extinction Ratio Center Wavelength Spectral Width (RMS) Optical Rise/Fall Time Total Jitter (pk-pk) Relative Intensity Noise Output Eye Receiver Sensitivity (Avg.) Input Optical Wavelength LOS- De-Asserted (Avg.) LOS- asserted (Avg.) LOS-Hysteresis Overload Notes: 1. These are 20%~80% values 2. The sensitivity is provided at a BER of 1x10-10 or better with an input signal consisting of 1250Mb/s, 27-1 PRBS. Symbol Min. Typ. Max. Unit Note
PO -9.5 -3 dBm ER 9 dB C 830 850 860 nm 0.85 nm 260 psec 1 tr /tf TJTX 220 psec RIN -117 dB/Hz Complies with the IEEE 802.3z/D2 specification, and is class 1 laser eye safety PIN PD PA PD-PA PO -17 850 -17 -30 0.5 -3 dBm nm dBm dBm dB dBm 2
Mask of the eye diagram for the optical transmit signal
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DELTA ELECTRONICS, INC.
Dec., 2006 Rev. 0C
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Optical Characteristics (LCP-1250B4QSRA)
(VCC=3.135V to 3.465V, Data Rate=1.25Gb/sec, PRBS=27-1 NRZ, 9/125m SMF) Parameter Transmitter Output Optical Power (Avg.) Optical Extinction Ratio Center Wavelength Spectral Width Optical Rise/ Fall Time Total Jitter (pk-pk) Relative Intensity Noise Output Eye Receiver Sensitivity (Avg.) Input Optical Wavelength LOS- De-Asserted (Avg.) LOS- asserted (Avg.) LOS-Hysteresis Overload Symbol Min. Typ. Max. Unit Note
PO -9.5 -3 dBm ER 9 dB C 1270 1310 1355 nm 4 nm 260 psec 1 tr/tf TJTX 220 psec RIN -120 dB/Hz Complies with the IEEE 802.3z/D2 specification, and is class 1 laser eye safety PIN PD PA PD-PA PO -19 1310 -19 -30 0.5 -3 dBm nm dBm dBm dB dBm 1 2 2
Notes: 1. These are unfiltered 20%~80% values 2. The sensitivity is provided at a BER of 1x10-12 or better with an input signal consisting of 1.25Gb/s, 27-1 PRBS and ER=9dB.
Mask of the eye diagram for the optical transmit signal
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DELTA ELECTRONICS, INC.
Dec., 2006 Rev. 0C
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SFP Transceiver Electrical Pad Layout
Pin Function Definitions
Pin Num. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Name VeeT TX Fault TX Disable MOD-DEF2 MOD-DEF1 MOD-DEF0 Rate Select LOS VeeR VeeR VeeR RDRD+ VeeR VccR VccT VeeT TD+ TDVeeT Function Transmitter Ground Transmitter Fault Indication Transmitter Disable Module Definition 2 Module Definition 1 Module Definition 0 Not Connect Loss of Signal Receiver Ground Receiver Ground Receiver Ground Inv. Received Data Out Received Data Out Receiver Ground Receiver Power Transmitter Power Transmitter Ground Transmit Data In Inv. Transmit Data In Transmitter Ground Plug Seq. 1 3 3 3 3 3 3 3 1 1 1 3 3 1 2 2 1 3 3 1 Notes Note 1 Note 2 Module disables on high or open Note 3, 2 wire serial ID interface Note 3, 2 wire serial ID interface Note 3, Grounded in Module Function not available Note 4 Note 5 Note 5 Note 5 Note 6 Note 7 Note 5 3.3 5%, Note 7 3.3 5%, Note 7 Note 5 Note 8 Note 8 Note 5
Plug Seq.: Pin engagement sequence during hot plugging.
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DELTA ELECTRONICS, INC.
Dec., 2006 Rev. 0C
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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): (>0.8, < 2.0V): High (2.0 - 3.465V): Open: 3) Transmitter on Undefined Transmitter Disabled Transmitter Disabled
Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K - 10Kresistor 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) 6)
VeeR and VeeT may be internally connected within the SFP module. 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 ohm 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.
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DELTA ELECTRONICS, INC.
Dec., 2006 Rev. 0C
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Recommend Circuit Schematic
VCC 3.3V 1uH 1uH RES1 10uF 0.1uF 0.1uF
Protocol Vcc
DELTA SFP Module
VccT
10k Ohms
Tx_Disable Tx_Fault
Tx_Disable Tx_Fault TD +
0.01uF 100 Ohms
Laser Driver
Laser Diode
TD -
0.01uF
Protocol IC
SerDes IC
RES1 10uF
VeeT VccR
0.1uF
RD +
100 Ohms*
0.01uF
Preamp & Quantizer
Photo Diode
RD Rx_LOS
3.3V
0.01uF
Rx_LOS VeeR
RES1
RES1
RES1
PLD / PAL
Mod_def 2 Mod_def 1 Mod_def 0
EEPROM
RES1 = 4.7k to 10k Ohms * Depands on SerDes IC used
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DELTA ELECTRONICS, INC.
Dec., 2006 Rev. 0C
www.deltaww.com
Package Outline Drawing for Metal Housing with Bail de-latch
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DELTA ELECTRONICS, INC.
Dec., 2006 Rev. 0C
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SFP timing parameters for SFP management
Parameter TX_DISABLE Assert time TX_DISABLE Negate time Symbol t_off Min. Max. 10 Unit Conditions Time from rising edge of TX_DISABLE to sec when the optical output falls below 10% of nominal Time from falling edge of TX_DISABLE to msec when the modulated optical output rises above 90% of nominal msec From power on or negation of TX_Fault using TX Disable. Unit
t_on
1
Time to initialize, including reset of t_init TX_FAULT TX Fault Assert t_fault Time TX_DISABLE to t_rest reset LOS Assert Time t_loss_on LOS Deassert Time t_loss_off Serial ID Clock Rate f_serial_clock
300 100 10 100 100 100
sec Time from fault to TX fault on. Time TX Disable must be held high to reset TX_Fault sec Time from LOS state to Rx LOS assert sec Time from non-LOS state to Rx LOS deassert kHz sec
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DELTA ELECTRONICS, INC.
Dec., 2006 Rev. 0C
www.deltaww.com
SFP timing parameters
Power on initialization of SFP transceiver, TX_DISABLE Power on initialization of SFP, TX_DISABLE asserted negated Initialization during hot plugging of SFP TRANSCEIVER.
Example of initialization during hot plugging, TX_DISABLE SFP TX_DISABLE timing during normal operation. negated.
Detection of transmitter safety fault condition
Successful recovery from transient safety fault condition
Unsuccessful recovery from safety fault condition
Timing of LOS detection
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DELTA ELECTRONICS, INC.
Dec., 2006 Rev. 0C
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LCP-1250A4FSRA EEPROM Serial ID Memory Contents (2-Wire Address A0h)
Address Hex ASCII Address Hex ASCII Address Hex ASCII Address Hex ASCII Address Hex ASCII Address Hex ASCII 00 03 25 20 50 46 F 75 SN 100 00 125 00 01 04 26 20 51 53 S 76 SN 101 00 126 00 02 07 27 20 52 52 R 77 SN 102 00 127 00 03 00 28 20 53 41 A 78 SN 103 00 04 00 29 20 54 20 79 SN 104 00 05 00 30 20 55 20 80 SN 105 00 06 01 31 20 56 30 81 SN 106 00 07 00 32 20 57 30 82 SN 107 00 08 00 33 20 58 30 83 SN 108 00 09 00 34 20 59 0A 84 DC Note 3 109 00 10 00 35 20 60 03 85 DC 110 00 11 01 36 00 61 52 86 DC 111 00 12 0D 37 00 62 00 87 DC 112 00 13 00 38 00 63 CS1 Note 1 88 DC 113 00 14 00 39 00 64 00 89 DC 114 00 15 00 40 4C L 65 1A 90 DC 115 00 16 37 41 43 C 66 05 91 DC 116 00 17 1D 42 50 P 67 05 92 00 117 00 18 00 43 2D 68 SN Note 2 93 00 118 00 19 00 44 31 1 69 SN 94 00 119 00 20 44 D 45 32 2 70 SN 95 CS2 Note 4 120 00 21 45 E 46 35 5 71 SN 96 00 121 00 22 4C L 47 30 0 72 SN 97 00 122 00 23 54 T 48 41 A 73 SN 98 00 123 00 24 41 A 49 34 4 74 SN 99 00 124 00
LCP-1250B4QSRA EEPROM Serial ID Memory Contents (2-Wire Address A0h)
Address Hex ASCII Address Hex ASCII Address Hex ASCII Address Hex ASCII Address Hex ASCII Address Hex ASCII 00 03 25 20 50 51 Q 75 SN 100 00 125 00 01 04 26 20 51 53 S 76 SN 101 00 126 00 02 07 27 20 52 52 R 77 SN 102 00 127 00 03 00 28 20 53 41 A 78 SN 103 00 04 00 29 20 54 20 79 SN 104 00 05 00 30 20 55 20 80 SN 105 00 06 02 31 20 56 30 81 SN 106 00 07 00 32 20 57 30 82 SN 107 00 08 00 33 20 58 30 83 SN 108 00 09 00 34 20 59 0A 84 DC Note 3 109 00 10 00 35 20 60 05 85 DC 110 00 11 01 36 00 61 1E 86 DC 111 00 12 0D 37 00 62 00 87 DC 112 00 13 00 38 00 63 CS1 Note 1 88 DC 113 00 14 0A 39 00 64 00 89 DC 114 00 15 64 40 4C L 65 1A 90 DC 115 00 16 00 41 43 C 66 05 91 DC 116 00 17 00 42 50 P 67 05 92 00 117 00 18 00 43 2D 68 SN Note 2 93 00 118 00 19 00 44 31 1 69 SN 94 00 119 00 20 44 D 45 32 2 70 SN 95 CS2 Note 4 120 00 21 45 E 46 35 5 71 SN 96 00 121 00 22 4C L 47 30 0 72 SN 97 00 122 00 23 54 T 48 42 B 73 SN 98 00 123 00 24 41 A 49 34 4 74 SN 99 00 124 00
Notes:
1) 2) 3) Byte 63: Check sum of bytes 0-62. Byte 68-83 (SN): Serial number. Byte 84-91 (DC): Date code. Byte 95 (CS2): Check sum of bytes 64-94.
4)
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DELTA ELECTRONICS, INC.
Dec., 2006 Rev. 0C
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5)
Byte 128-255 had been set hex. 00.
Regulatory Compliance
Feature Electromagnetic Interference (EMI) Radio Frequency Electromagnetic Field Electrostatic Discharge to the Duplex LC Receptacle Reference FCC CRF 47, Part15 Class B EN 55022 Class B (CISPR 22A) EN 61000-4-3 IEC 61000-4-3 EN 61000-4-2 IEC 61000-4-2 IEC 801.2 Electrostatic Discharge to the Electrical Pins Eye Safety MIL-STD-883E Method 3015.7 US FDA CDRH AEL Class 1 EN 60950: 2000 EN 60825-1: 1994+A11+A2 EN 60825-2: 2000 Component Recognition CDRH File # 0321539-00 TUV Certificate No. R50032471 (1) Satisfied with electrical characteristics of product spec. (2) No physical damage Performance
Underwriters Laboratories and UL File # E239394 Canadian Standards Association Joint Component Recognition for Information Technology Equipment Including Electrical Business Equipment
Ordering information for SFP modules
LCP-1250X14X2SRA X1: Fiber A: Multi-mode 850nm B: Single-mode 1310nm X2: Distance F: 500m (Multi-mode 850nm) Q: 10km (Single-mode 1310nm)
Related Product
LCP-155xxxx: 155Mb/s, Multimode and single mode transceiver from 2km to 40km LCP-2125xxxx: 2.125Gb/s, Multimode and single mode transceiver from 300m to 10km LCP-2488xxxx: 2.5Gb/s, multimode and single mode transceiver from 300m to 15km
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DELTA ELECTRONICS, INC.
Dec., 2006 Rev. 0C
www.deltaww.com

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