19-6025 Rev 0 9/11 EVALUATION KIT AVAILABLE MAX3711 125Mbps to 3.125Gbps Integrated Limiting Amplifier/ Laser Driver with Dual-Loop Power Control General Description Benefits and Features The MAX3711 limiting amplifier and laser driver provides S Simplifies Module Manufacturing a highly integrated, low-cost, high-performance PMD Enables Single-Temperature Module Testing solution. Production Laser Auto-Calibration Mode The low-jitter laser diode driver provides transmit aver- S Improved Performance age power control (APC) of laser bias current as well as Integrated APC Loop (Operates Up to an integrated modulation current control loop (extinction 3.125Gbps) ratio control, or ERC). The ERC eliminates the need for Integrated ERC Loop (Operates Up to 2.7Gbps) temperature lookup tables (LUTs) controlling the modula- 1.3mV Receiver Sensitivity P-P tion current. S Flexibility The low-noise limiting amplifier maximizes optical sen- LVDS, LVPECL, and CML Compatible High- sitivity and has adjustable SD/LOS threshold plus pro- Speed I/Os grammable output levels. The differential CML output Programmable I/O Polarity stage features a slew-rate adjustment for 1.25Gbps 3-Wire Digital Interface operation. Integrated bias current monitor and Tx power S Safety and Reliability monitor enable a low-cost implementation of modules Integrated Safety Features with FAULT Mask with digital diagnostics. Register A novel auto-calibration mode enables low-cost fiber Supports SFP MSA and SFF-8472 Digital optic module production. An integrated 3-wire digital Diagnostic interface controls the laser driver and limiting amplifier Selectable Analog Monitor of Laser Power or functions, and enables communication with a low-cost BIAS Current at BMON Pin controller. Applications The MAX3711 is offered in a small, 4mm x 4mm, 24-pin TQFN package with exposed pad, and operates over the OC-3 to OC-48 SFP/SFF Transceivers -40NC to +95NC temperature range. Ethernet SFP/SFF Transceivers CPRI/OBSAI SFP/SFF Transceivers Ordering Information appears at end of data sheet. CWDM SFP Transceivers For pricing, delivery, and ordering information, please contact Maxim Direct 1 at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.MAX3711 125Mbps to 3.125Gbps Integrated Limiting Amplifier/ Laser Driver with Dual-Loop Power Control ABSOLUTE MAXIMUM RATINGS V , V , V ............................................... -0.3V to 4.0V Current out of ROUT+, ROUT- ...........................................40mA CCX CCTO CCD Voltage Range at DISABLE, SDA, SCL, CSEL, Current into TOUT ............................................................180mA FAULT, LOS, MDREF ........................... -0.3V to (V + 0.3V) Current into IOUT .............................................................120mA CC Voltage Range at RIN+, RIN- ........ (V - 1.7V) to (V + 0.3V) Voltage Range at BMON .........................................-0.3V to V CC CC CC Voltage Range at ROUT+, ROUT- .......... (V - 2V) to (V + 0.3V) Continuous Power Dissipation (T = +70NC) CC CC A TQFN (derate 27.8mW/NC above +70NC)..................2222mW Voltage Range at TIN+, TIN- .................... -0.3V to (V + 0.3V) CC Storage Temperature Range .......................... -55NC to +150NC Voltage Range at TOUT .......................................0.3V to V CCTO Die Attach Temperature .................................................+400NC Voltage Range at IOUT .........(V - 1.8V) to (V + 1.2V) CCTO CCTO Lead Temperature (soldering, 10s) ................................+300NC Current Range into FAULT, LOS, Soldering Temperature (reflow) ......................................+260NC MDIN, SDA ...................................................... -1mA to +5mA Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional opera- tion of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (V = 2.97V to 3.63V, T = -40C to +95C CML receiver output is AC-coupled to differential 100 load registers are set to default CC A values, unless implied by test conditions. Typical values are at V = 3.3V, T = +25C, data rate = 2.5Gbps, I = 20mA, and CC A BIAS I = 40mA, unless otherwise noted.) (Note 1) MOD PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS OPERATING CONDITIONS Power Supply Voltage V 2.97 3.3 3.63 V CC POWER SUPPLY Includes Rx CML output current, Power-Supply Current I 75 110 mA CC excludes Tx I = 20mA, I = 40mA BIAS MOD POWER-ON RESET V for Enable High V connected to V 2.55 2.75 V CC CCX CCD V for Enable Low V connected to V 2.3 2.45 V CC CCX CCD Rx INPUT SPECIFICATION Differential Input Resistance R 75 100 125 I IN 23 2 - 1 PRBS, 2.5Gbps, TX EN = 0 Input Sensitivity V 1.3 2 mV INMIN P-P (Note 2) Input Overload V (Note 2) 1.2 V INMAX P-P Device powered on, f P 2GHz 19 Differential Input Return Loss S dB DD11 Device powered on, f P 5GHz 12 Device powered on, 1GHz P f P 2GHz 11 Common-Mode Input Return S dB CC11 Loss Device powered on, 2GHz P f P 5GHz 14 Rx OUTPUT SPECIFICATION Differential Output Resistance R 75 100 125 I OUTDIFF Device powered on, f P 2GHz 19 Differential Output Return Loss S dB DD22 Device powered on, 2GHz P f P 5GHz 15 Device powered on, f P 2GHz 14 Common-Mode Output Return S dB CC22 Loss Device powered on, 2GHz P f P 5GHz 10 2