MAX3261CCJ Maxim Integrated Products, MAX3261CCJ Datasheet
MAX3261CCJ
Specifications of MAX3261CCJ
Available stocks
Related parts for MAX3261CCJ
MAX3261CCJ Summary of contents
Page 1
... Differential PECL Inputs Single +5V Supply Automatic Power Control Temperature-Compensated Reference Voltage Complementary Enable Inputs ______________Ordering Information PART MAX3261CCJ MAX3261ECJ MAX3261E/D * Dice are designed to operate over a -40°C to +140°C junction temperature (Tj) range. Tested and guaranteed +25°C. __________Typical Operating Circuit +5V VIN+ ...
Page 2
... SLWSTRT ..............................................................0mA to 5mA CC_ Continuous Power Dissipation (T CC_ TQFP (derate 10.2mW/°C above +70°C)......................816mW ) ...........................3.8V Operating Temperature Ranges MAX3261CCJ ......................................................0°C to +70°C MAX3261ECJ ...................................................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-55°C to +175°C Processing Temperature (die) .........................................+400° unless otherwise noted ...
Page 3
... MODULATION CURRENT (mAp-p) = +25°C, unless otherwise noted.) EYE DIAGRAM (1062Mbps, LOAD = 25 , NOT FILTERED) 250.3mV -250mV 40.14ns 38.13ns 117ps/div MAX3261CCJ EYE DIAGRAM (1062Mbps, LOAD AT OUT- = 1300nm LASER WITH 800MHz BESSEL FILTER)* 513.7mV -66.2mV 40.15ns 37.78ns 117ps/div R vs. MONITOR CURRENT PINSET 1,000,000 ...
Page 4
Single +5V, Fully Integrated, 1.25Gbps Laser Diode Driver ____________________________Typical Operating Characteristics (continued) (MAX3261E/D, LOAD at OUT+ = OUT- = 25Ω, V PERCENT CHANGE IN MODULATION CURRENT vs. TEMPERATURE -10 0 ...
Page 5
Description PIN NAME 1, 2, 25, GNDA Ground for Bias and Modulation Current Drivers 27 IPIN Monitor Photodiode Current Input. Connect IPIN to photodiode’s anode. Slow-Start Capacitor Input. Connect capacitor to ground or leave unconnected to set ...
Page 6
Single +5V, Fully Integrated, 1.25Gbps Laser Diode Driver _______________Detailed Description The MAX3261 laser driver has three main sections: a reference generator with temperature compensation, a laser bias block with automatic power control, and a high-speed modulation driver. The reference generator ...
Page 7
V CC MAX3261 280 280 400 2(I ) 2(I ) IOSADJ IOSADJ INPUT BUFFER Figure 2. MAX3261 Modulation Driver (Simplified) current mirror has a gain of approximately 20. Keep the voltages at OUT+ and OUT- above 2.2V to prevent saturation. ...
Page 8
Single +5V, Fully Integrated, 1.25Gbps Laser Diode Driver the IPIN node will drop below 2.6V. This will trigger the failout comparator, which provides a TTL signal indicat- ing laser failure. The FAILOUT output asserts only if the monitor-diode current is ...
Page 9
PECL SIGNAL SOURCE a) THEVENIN-EQUIVALENT TERMINATION NON-PECL SIGNAL SOURCE b) DIFFERENTIAL NON-PECL TERMINATION NON-PECL SIGNAL SOURCE c) SINGLE-ENDED NON-PECL TERMINATION ECL SIGNAL SOURCE d) ECL TERMINATION THIS SYMBOL REPRESENTS A TRANSMISSION LINE WITH CHARACTERISTIC IMPEDANCE ...
Page 10
Single +5V, Fully Integrated, 1.25Gbps Laser Diode Driver Reducing Power Consumption The laser driver typically consumes 40mA of current for internal functions. Typical load currents, such as 12mA of modulation current and 20mA of bias cur- rent, bring the total ...
Page 11
OUT+ 1000pF MAX3261 PHOTO- DIODE IPIN SERIES R IBIASOUT 200 OUT- O MICROSTRIP Figure 5. Typical Laser Interface with Bias Compensation EYE DIAGRAM WITH R-C AND R-L COMPENSATION (622Mbps, LOAD AT OUT- = ...
Page 12
... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 12 © ...