View LCP-1250SR_761846.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

RoHS Compliant Multimode SFP Transceiver for GbE and Fiber Channel
FEATURES
Compliant with SFP Transceiver SFF-8472 MSA specification with internal calibration Compliant with Specifications for IEEE 802.3z/Gigabit Ethernet Compliant with the 1.0625GBd Fiber Channel FC-PI 100-M5-SN-I Rev.13 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-1250A series are hot pluggable 3.3V Small-Form-Factor transceiver modules designed expressly for high-speed communication applications that require rates up to 1.25Gb/s. The transceiver is data rate transparent, which means it can support GbE (1.25Gb/s) as well as 1x Fiber channel (1.062Gb/s) operations The LCP-1250 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 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
850nm VCSEL Link up to 550m in 50/125m Multi Mode Fiber
1
DELTA ELECTRONICS, INC.
Oct., 2006 Rev. 6F
www.deltaww.com
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
Note 1: See order information
Symbol TC VCC
Min. -5 3.135
Typ.
Max. 70 3.465
Unit C V
Note 1
Electrical Characteristics
(VCC=3.3V 5%) Parameter Total Supply Current Transmitter Transmitter Differential Input Voltage Transmitter Disable Input-High Transmitter Disable Input-Low Transmitter Fault Pull up Resistor Transmitter Fault Output-High Transmitter Fault Output-Low Receiver Receiver Differential Output Voltage Receiver LOS Load LOS Output Voltage-High LOS Output Voltage-Low Output Data Rise/Fall Time Symbol ICCT VDT VDISH VDISL RTX_FAULT VTXFH VTXFL VDR RRXLOS VLOSH VLOSL tr / t f Min. Typ. 180 Max. 300 2.4 VCC+0.3 0.8 10 VCC+0.3 0.8 1 2 10 VCC+0.3 0.8 Unit mA V V V k V V V k V V psec Note
0.5 2 0 4.7 2 0 0.35 4.7 2 0
1
2 2 2 3 2 2 2 4
220
Notes: 1. Internally AC coupled and terminated to 100Ohm differential load. 2. Pull up to VCC on host Board 3. Internally AC coupled, but requires a 100Ohm differential termination at or internal to Serializer/ Deserializer. 4. These are 20%~80% values
2
DELTA ELECTRONICS, INC.
Oct., 2006 Rev. 6F
www.deltaww.com
Optical Characteristics
(VCC=3.3V 5%, Data Rate=1250Mb/sec, PRBS=27-1 NRZ) Parameter Symbol Min. Transmitter Output Optical Power (Avg.) PO -9.5 Optical Extinction Ratio ER 9 C Center Wavelength 830 Spectral Width (RMS) Optical Rise/ Fall Time tr/tf Receiver Sensitivity (Avg.) PIN Input Optical Wavelength LOS-Deasserted (Avg.) PA LOS-Asserted (Avg.) PD -30 LOS-Hysteresis PA-PD 0.5 Overload PO -3 Notes: 1. These are unfiltered 20%~80% values 27-1 PRBS and ER=9dB.
Typ.
Max. -4
Unit dBm dB nm nm pec dBm nm dBm dBm dB dBm
Note
850
860 0.85 260 -17
1 2
850 -17
2. The sensitivity is provided at a BER of 1x10-12or better with an input signal consisting of 1250Mb/s,
Mask of the eye diagram for the optical transmit signal
3
DELTA ELECTRONICS, INC.
Oct., 2006 Rev. 6F
www.deltaww.com
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.
4
DELTA ELECTRONICS, INC.
Oct., 2006 Rev. 6F
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): (>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.
5
DELTA ELECTRONICS, INC.
Oct., 2006 Rev. 6F
www.deltaww.com
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
6
DELTA ELECTRONICS, INC.
Oct., 2006 Rev. 6F
www.deltaww.com
Package Outline Drawing
7
DELTA ELECTRONICS, INC.
Oct., 2006 Rev. 6F
www.deltaww.com
SFP timing parameters for SFP management
Parameter TX_DISABLE Assert time TX_DISABLE Negate time Time to initialize, including reset of TX_FAULT TX Fault Assert Time TX_DISABLE to reset LOS Assert Time LOS Deassert Time Serial ID Clock Rate Symbol t_off t_on t_init t_fault t_rest t_loss_on t_loss_off f_serial_clock 10 100 100 100 Min. Max. 10 1 300 100 Unit sec msec msec sec sec sec sec kHz Note 1 2 3 4 5 6 7
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 Time from fault to TX fault on. 5) Time TX Disable must be held high to reset TX_Fault 6) Time from LOS state to Rx LOS assert 7) Time from non-LOS state to Rx LOS deassert
4)
8
DELTA ELECTRONICS, INC.
Oct., 2006 Rev. 6F
www.deltaww.com
Enhanced Digital Diagnostic Interface
The memory map in the following describes an extension to the memory map defined in SFP MSA. The enhanced interface uses the two wire serial bus address 1010001X(A2h) to provide diagnostic information about the module's present operating conditions.
2 wire address 1010000 X (A0h) 0 0
2 wire address 1010001 X (A2h)
Alarm and Warning Thresholds (56 bytes) Serial ID Defined by SFP MSA (96 bytes) 55 56 Cal Constants (40 bytes) 95 96 95 96 Real Time Diagnostic Interface (24 bytes) Vender Specific (32 bytes) 119 120 Vender Specific (Note) 127 128 Reserved in SFP MSA (128 bytes) 255 127 128 247 248 255 User Writable EEPROM (120 bytes)
Vender Specific (8 bytes)
Digital Diagnostic Memory Map Specific Data Field Descriptions
Note: 1) Write the password (11h, 11h, 11h, 11h) on the bytes of 123-126 of address A2h then the address of bytes 128-255 (User Writable) can be read and written.
9
DELTA ELECTRONICS, INC.
Oct., 2006 Rev. 6F
www.deltaww.com
EEPROM Serial ID Memory Contents (2-Wire Address A0h)
Address 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 Hex 03 04 07 00 00 00 01 00 00 00 00 01 0D 00 00 00 xx xx 00 00 44 45 4C 54 41 20 20 20 20 20 20 20 20 20 20 20 00 00 00 00 PN PN PN ASCII Address 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 Hex PN PN PN PN PN PN PN PN PN PN PN PN PN 30 30 30 0A 03 52 00 CS1 00 1A 05 05 SN SN SN SN SN SN SN SN SN SN SN SN SN SN SN SN DC DC ASCII Address 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 Hex DC DC DC DC DC DC 68 B0 02 CS2 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ASCII
Note 8
Note 1 Note 2 D E L T A
Note 4 Note 4 Note 5
Note 6
Note3
Note 7
Note9
Notes: 1) 2) 3) 4) 5) 6) 7) 8) Byte 16: Link length supported for 50/125m MM fiber, units of 10 m. Byte 17: Link length supported for 62.5/125m MM fiber, units of 10 m. Byte 40-55: Delta part number Byte 60-61: The center wavelength of transmitter Byte 63: Check sum of bytes 0-62. Byte 68-83: Serial number. Byte 84-91: Date code. Byte 95: Check sum of bytes 64-94. 10
DELTA ELECTRONICS, INC.
Oct., 2006 Rev. 6F
www.deltaww.com
9)
Byte 128 to 255 had been set hex 00.
Digital Diagnostic Monitoring Interface
Alarm and Warning Thresholds (2-Wire Address A2h)
Address 00-01 02-03 04-05 06-07 08-09 10-11 12-13 14-15 16-17 18-19 20-21 22-23 24-25 26-27 28-29 30-31 32-33 34-35 36-37 38-39 40-45 56-91 92-94 95 96-97 98-99 100-101 102-103 104-105 106-109 110 111 112-119 Notes: 1) TC: Case Operating temperature 2) IOP: Operating current at room temperature. The min. setting current is 0 mA. 3) P: Operating optical power of transmitter at room temperature. 4) P0: Overload optical power of receiver PS: Sensitivity optical power of receiver 5) Byte 95 contains the low order 8bits of sum of bytes 0-94 11
DELTA ELECTRONICS, INC.
# Bytes 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 16 36 3 1 2 2 2 2 2 4 1 1 8
Name Temp High Alarm Temp Low Alarm Temp High Warning Temp Low Warning Voltage High Alarm Voltage Low Alarm Voltage High Warning Voltage Low Warning Bias High Alarm Bias Low Alarm Bias High Warning Bias Low Warning TX Power High Alarm TX Power Low Alarm TX Power High Warning TX Power Low Warning RX Power High Alarm RX Power Low Alarm RX Power High Warning RX Power Low Warning Reversed External Calibration Constants Reversed Checksum Real Time Temperature Real Time Supply Voltage Real Time Tx Bias Current Real Time Tx Optical Power Real Time Rx Received Power Reserved Optional Status/ Control Bits Reserved Optional Set of Alarm and Warning
Value (Dec.) TC (MAX.)+15 TC (MIN.) TC (MAX.)+10 TC (MIN.)+10 Vcc+5% Vcc-5% Vcc+3% Vcc-3% IOP+10 IOP-5 IOP+7 IOP-3 P+3 P-3 P+2 P-2 P0+3 PS-2 P0+2 PS
Unit
Note 1
Volt
mA
2
dBm
3
dBm
4
5
6 7
Oct., 2006 Rev. 6F
www.deltaww.com
6) State/ Control Bits
Byte 110 110 110 110 110 110 110 110 Bit 7 6 5 4 3 2 1 0 Name Tx Disable State Soft Tx Disable Reserved Rate Select tate Soft Rate Select Tx Fault LOS Data_Ready_Bar Description Digital state of the Tx disable input pin Read/ Write bit that allow software disable of laser NA NA Digital state of the Tx fault output pin Digital state of the LOS output pin. NA
7) Optional Set of Alarm and Warning
Byte 112 112 112 112 112 112 112 112 113 113 113 116 116 116 116 116 116 116 116 117 117 117 Bit 7 6 5 4 3 2 1 0 7 6 5-0 7 6 5 4 3 2 1 0 7 6 5-0 Name Temp High Alarm Temp Low Alarm Vcc High Alarm Vcc Low Alarm Tx Bias High Alarm Tx Bias Low Alarm Tx Power High Alarm Tx Power Low Alarm Rx Power High Alarm Rx Power Low Alarm Reserved Temp High Warning Temp Low Warning Vcc High Warning Vcc Low Warning Tx Bias High Warning Tx Bias Low Warning Tx Power High Warning Tx Power Low Warning Rx Power High Warning Rx Power Low Warning Reserved Description Set when internal temperature exceeds high alarm level Set when internal temperature is below low alarm level Set when internal supply voltage exceeds high alarm level Set when internal supply voltage is below low alarm level Set when Tx Bias current exceeds high alarm level Set when Tx Bias current is below low alarm level Set when Tx output power exceeds high alarm level Set when Tx output power is below low alarm level Set when received power exceeds high alarm level Set when received power is below low alarm level Set when internal temperature exceeds high warning level Set when internal temperature is below low warning level Set when internal supply voltage exceeds high warning level Set when internal supply voltage is below low warning level Set when Tx Bias current exceeds high warning level Set when Tx Bias current is below low warning level Set when Tx output power exceeds high warning level Set when Tx output power is below low warning level Set when received power exceeds high warning level Set when received power is below low warning level
Digital Diagnostic Monitor Accuracy Parameter
Transceiver Temperature Power Supply Voltage TX Bias Current TX Optical Power RX Optical Power Notes: 1) Temperature is measured internal to the transceiver
Typical Value
3 3% 10% 1.5dB 3dB
Note
1 2
2) Voltage is measured internal to the transceiver 12
DELTA ELECTRONICS, INC.
Oct., 2006 Rev. 6F
www.deltaww.com
Regulatory Compliance
Test Item (#1) Electromagnetic Interference EMC (#2) Immunity Radio Frequency Electromagnetic Field (#3) Immunity Electrostatic Discharge to the Duplex SC Receptacle (#4) Electrostatic Discharge to the Electrical Pins Reference FCC Class B EN 55022 Class B CISPR 22 EN 61000-4-3 IEC 1000-4-3 EN 61000-4-2 IEC 1000-4-2 IEC 801.2 Qty' Evaluation
5
5 (1) Satisfied with electrical characteristics of product spec. 5 (2) No physical damage
MIL-STD-883C Method 3015.4 EIAJ#1988.3.2B Version 2, Machine model
5
Ordering information for SFP modules
LCP-1250A4FX1X2X3 X1: Digital Diagnostic Function S: without digital diagnostic function D: with digital diagnostic function X3: Temperature Blank: -5 to +70 degree C H: -10 to +85 degree C T: -40 to +85 degree C
X2:
RoHS compliance R: RoHS Compliant
13
DELTA ELECTRONICS, INC.
Oct., 2006 Rev. 6F
www.deltaww.com
Revision History
Rev 6A 6B 6C 6D 6E 6F Date Contents Aug, 2005 1. Separated from single mode series Dec, 2005 1. Add RoHS compliant part numbers 2. Modify TX and RX rise/fall time Mar, 2006 1. Add Industrial part Aug., 2006 1. Modify operating temperature range Aug., 2006 1. Update A2h design Oct., 2006 1. Add the description of password for bytes 128-255 (User Writable) of address A2h can be read and written.
14
DELTA ELECTRONICS, INC.
Oct., 2006 Rev. 6F
www.deltaww.com

▲Up To Search▲

Price & Availability of LCP-1250SR

	To Download LCP-1250SR Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .