MAX24001 2.5Gbps Tx Burst-Mode Laser Transceiver General Description Functional Diagram 2.5Gbps Limiting Receiver The MAX24001 is a complete burst-mode laser driver RX IN+ transmitter and limiting amplifier receiver for use RX OUT+ RX OUT- within fiber optic modules for FTTx applications. A RX IN- fully compliant GPON/GEPON module with digital LOS/SD diagnostics can be realized when used with a 2KB TX FAULT / DAC APD CTRL RSSI EEPROM and suitable optics. Alternatively, a ADC microcontroller can be used in conjunction with the SCL SLAVE TSENSE SDA SLAVE MAX24001 however, this is not a necessity in order TSENSE RET SCL MASTER to achieve SFF-8472 compliance. SDA MASTER SLEEP MPD The 2.5Gbps limiting receive path features TX DISABLE programmable output swing control, rate selection, BEN+ TX SD / BEN- TX FAULT and OMA-based loss-of-signal detection. Functions are also provided which facilitate the implementation BIAS of APD biasing without the need for an external DC- TX IN+ TX OUT+ DC converter. TX IN- TX OUT- The burst-mode laser driver has temperature 2.5Gbps Burst mode laser driver compensated modulation control using a lookup table. Closed-loop control of laser power incorporates Features tracking error compensation and has multiple options 2.5Gbps Limiting Receiver for rapidly settling the laser power thus enabling fast Integrated APD Bias Loop With Overvoltage registration and shutdown on the network. And Overcurrent Protection Diagnostics are enhanced with the inclusion of OMA-Based LOS Detection programmable transmit signal detection during 1.25Gbps to 2.5Gbps Laser Driver bursts, and rogue ONU detection between bursts. This is linked to a laser safety system which allows CML, LVPECL, HSTL, SSTL-Compatible the modulation and bias currents to be shut off in Inputs response to a range of different fault conditions Open and Closed-Loop Bias Control detected on-chip. Temperature-Compensated I Control MOD The transmit and receive systems are independently Highly Configurable Laser Safety System powered and can respond separately to the SLEEP Transmit TX SD and Rogue ONU Detection pin. The MAX24001 is highly configurable from either SFP MSA and SFF-8472 Digital Diagnostics EEPROM or low-cost MCU using a two-wire Integrated Temperature Sensor interface. Power-Saving SLEEP Modes Applications External DAC, ADC, and PWM Interfaces GPON, GEPON, Gigabit Ethernet Ordering Information PART TEMP RANGE PIN-PACKAGE MAX24001TL+ -40C to +95C 40 TQFN-EP* +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. 19-6460 Rev 2 2/14 Maxim Integrated 1 Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device errata, go to: www.maximintegrated.com/errata. For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maximintegrated.com. ABSOLUTE MAXIMUM RATINGS Voltage Range on V , V , V , V ........................................................................... -0.3V to +3.65V DD TX DD TXO DD RX DD RXO Voltage Range on Any Pin Not Otherwise Specified (with respect to V ) ........................... -0.5V to (V + 0.5V) SS * DD * Continuous Power Dissipation (T = +70C) A TQFN (derate 35.7mW/C above +70C) ................................................................................................. 2857.1mW Operating Temperature Range ............................................................................................................ -40C to +95C Junction Temperature ...................................................................................................................................... +150C Storage Temperature ......................................................................................................................... -70C to +150C Lead Temperature (soldering, 10s) ................................................................................................................. +300C Soldering Temperature (reflow) ....................................................................................................................... +260C 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. RECOMMENDED DC OPERATING CONDITIONS PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Operating Supply Voltage V 3.0 3.3 3.6 V DD V - DD ROSA sourcing to RSSI pin V 0.75 RSSI Pin Compliance ROSA sinking from RSSI pin 0.75 V BIAS Pin Compliance 0.8 V TX OUT Pin Compliance 0.8 V MPD Input Current For correct APC loop operation 40 2000 A MPD Input Capacitance For correct APC loop operation 4 20 pF Junction Temperature -40 +120 C Case Temperature -40 +95 C Device not guaranteed to meet parametric specifications when operated beyond these conditions. Permanent damage may be incurred by operating beyond these limits. ELECTRICAL CHARACTERISTICS (V = 2.97V to 3.63V, T = -40C to +95C.) (Note 1) CC A Note 1: Electrical specifications are production tested at T = +25C. Specifications over the entire operating temperature range are guaranteed A by design and characterization. Typical specifications are at T = +25C, 3.3V. A CONTINUOUS RATINGS PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Excluding laser bias and modulation currents, Supply Current I 20mA bias and modulation current, Rx CML 136 mA DD output 400mV P-P Maxim Integrated 2