LCP-1250A Delta Electronics, Inc., LCP-1250A Datasheet
LCP-1250A
Related parts for LCP-1250A
LCP-1250A Summary of contents
Page 1
... RoHS Compliant Multimode SFP Transceiver for GbE and Fiber Channel Description The LCP-1250A series are hot pluggable 3.3V Small-Form-Factor transceiver modules designed expressly for high-speed 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 ...
Page 2
... Output Data Rise/Fall Time Notes: 1. Internally AC coupled and terminated to 100Ohm differential load. 2. Pull host Board CC 3. Internally AC coupled, but requires a 100Ohm differential termination at or internal to Serializer/ Deserializer. 4. These are 20%~80% values DELTA ELECTRONICS, INC. Symbol Min. Typ. Max ...
Page 3
... LOS-Deasserted (Avg.) LOS-Asserted (Avg.) LOS-Hysteresis Overload Notes: 1. These are unfiltered 20%~80% values 2. The sensitivity is provided at a BER of 1× PRBS and ER=9dB. Mask of the eye diagram for the optical transmit signal DELTA ELECTRONICS, INC NRZ) Symbol Min. Typ. Max ó ...
Page 4
... VeeT Transmitter Ground 18 TD+ Transmit Data In 19 TD- Inv. Transmit Data In 20 VeeT Transmitter Ground Plug Seq.: Pin engagement sequence during hot plugging. DELTA ELECTRONICS, INC. Function Plug Seq Note 1 Note 2 3 Module disables on high or open 3 Note 3, 2 wire serial ID interface 3 ...
Page 5
... 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. DELTA ELECTRONICS, INC. 5 www.deltaww.com Oct., 2006 ...
Page 6
... Recommend Circuit Schematic VCC Protocol Vcc Tx_Disable Tx_Fault Protocol IC SerDes IC Rx_LOS PLD / PAL DELTA ELECTRONICS, INC. 1uH 3.3V 1uH RES1 10uF 0.1uF 0.1uF Tx_Disable Tx_Fault VeeT RES1 10uF 0.1uF RD + 100 Ohms Rx_LOS 3.3V VeeR RES1 RES1 RES1 Mod_def 2 Mod_def 1 Mod_def 0 RES1 = 4.7k to 10k Ohms ...
Page 7
... Package Outline Drawing DELTA ELECTRONICS, INC. 7 www.deltaww.com Oct., 2006 Rev. 6F ...
Page 8
... From power on or negation of TX_Fault using TX Disable 3) Time from fault to TX fault on. 4) Time TX Disable must be held high to reset TX_Fault 5) 6) Time from LOS state to Rx LOS assert 7) Time from non-LOS state to Rx LOS deassert DELTA ELECTRONICS, INC. Symbol Min. t_off t_on t_init t_fault t_rest ...
Page 9
... 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. ³ DELTA ELECTRONICS, INC. 2 wire address 1010001 X (A2h) 0 Alarm and Warning Thresholds (56 bytes) ...
Page 10
... Byte 17: Link length supported for 62.5/125ôm MM fiber, units Byte 40-55: Delta part number 4) Byte 60-61: The center wavelength of transmitter 5) Byte 63: Check sum of bytes 0-62. 6) Byte 68-83: Serial number. 7) Byte 84-91: Date code. 8) Byte 95: Check sum of bytes 64-94. DELTA ELECTRONICS, INC. Address Hex ASCII ...
Page 11
... Operating current at room temperature. The min. setting current Operating optical power of transmitter at room temperature Overload optical power of receiver Sensitivity optical power of receiver S 5) Byte 95 contains the low order 8bits of sum of bytes 0-94 DELTA ELECTRONICS, INC. Name Value (Dec.) T (MAX.)+ (MIN (MAX ...
Page 12
... TX Bias Current TX Optical Power RX Optical Power Notes: 1) Temperature is measured internal to the transceiver 2) Voltage is measured internal to the transceiver DELTA ELECTRONICS, INC. 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 ...
Page 13
... Electrostatic Discharge to the IEC 1000-4-2 Duplex SC Receptacle IEC 801.2 (#4) Electrostatic Discharge to the Electrical Pins MIL-STD-883C Method 3015.4 EIAJ#1988.3.2B Version 2, Machine model Ordering information for SFP modules LCP-1250A4FX Digital Diagnostic Function 1 S: without digital diagnostic function D: with digital diagnostic function X ...
Page 14
... Modify TX and RX rise/fall time 6C Mar, 2006 1. Add Industrial part 6D Aug., 2006 1. Modify operating temperature range 6E Aug., 2006 1. Update A2h design 6F Oct., 2006 1. Add the description of password for bytes 128-255 (User Writable) of address A2h can be read and written. DELTA ELECTRONICS, INC. 14 www.deltaww.com Oct., 2006 Rev. 6F ...