MAX3264/MAX3265/MAX3268/MAX3269/MAX3765/MAX3768 19-1523 Rev 7, 2/06 +3.0V to +5.5V, 1.25Gbps/2.5Gbps Limiting Amplifiers General Description Features The 1.25Gbps MAX3264/MAX3268/MAX3768 and the +3.0V to +5.5V Supply Voltage 2.5Gbps MAX3265/MAX3269/MAX3765 limiting ampli- Low Deterministic Jitter fiers are designed for Gigabit Ethernet and Fibre 14ps (MAX3264) Channel optical receiver systems. The amplifiers accept 11ps (MAX3265/MAX3765) a wide range of input voltages and provide constant- 150ps (max) Edge Speed (MAX3265/MAX3765) level output voltages with controlled edge speeds. 300ps (max) Edge Speed (MAX3264) Additional features include RMS power detectors with programmable loss-of-signal (LOS) indication, an Programmable Signal-Detect Function optional squelch function that mutes the data output sig- Choice of CML or PECL Output Interface nal when the input voltage falls below a programmable 10-Pin MAX or 16-Pin TSSOP Package threshold, and excellent jitter performance. The MAX3264/MAX3265/MAX3765 feature current-mode Ordering Information logic (CML) data outputs that are tolerant of inductive PART TEMP RANGE PIN-PACKAGE connectors and a 16-pin TSSOP package, making these MAX3264CUE 0C to +70C 16 TSSOP-EP* circuits ideal for GBIC receivers. The MAX3268/ MAX3269/MAX3768 feature standards-compliant posi- MAX3264CUE+ 0C to +70C 16 TSSOP-EP* tive-referenced emitter-coupled logic (PECL) data out- MAX3264C/D 0C to +70C Dice** puts and are available in a tiny 10-pin MAX package MAX3265CUE 0C to +70C 16 TSSOP-EP* that is ideal for small-form-factor (SFF) receivers. MAX3265CUE+ 0C to +70C 16 TSSOP-EP* Applications MAX3265CUB 0C to +70C 10 MAX-EP* Gigabit Ethernet Optical Receivers MAX3265CUB+ 0C to +70C 10 MAX-EP* MAX3265EUE -40C to +85C 16 TSSOP-EP* Fibre Channel Optical Receivers MAX3265EUE+ -40C to +85C 16 TSSOP-EP* System Interconnect MAX3265C/D 0C to +70C Dice** ATM Optical Receivers +Denotes lead-free package. *EP = Exposed paddle. **Dice are designed to operate from 0C to +70C, but are tested Selector Guide appears at end of data sheet. and guaranteed only at T = +25C. A Pin Configurations appear at end of data sheet. Ordering Information continued at end of data sheet. Typical Operating Circuits C AZ V CC V V CC CC CAZ1 CAZ2 MAX3264CUE R MAX3265CUE TERM C IN MAX3265EUE 0.01F 0.01F OUT+ IN+ R L 100 100 0.01F IN- OUT- MAX3266 C IN MAX3267 0.01F R TERM TH SQUELCH LOS LOS LEVEL V CC R TH N.C. LOSS N.C. N.C. OF SIGNAL Typical Operating Circuits continued at end of data sheet. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.+3.0V to +5.5V, 1.25Gbps/2.5Gbps Limiting Amplifiers ABSOLUTE MAXIMUM RATINGS Supply Voltage (V ) ............................................-0.5V to +6.0V Continuous Current at PECL Outputs (OUT+, OUT-) .........50mA CC Voltage at IN+, IN- ..........................(V - 2.4V) to (V + 0.5V) Continuous Power Dissipation (T = +70C) CC CC A Voltage at SQUELCH, CAZ1, 16-Pin TSSOP (derate 27mW/C above +70C) .........2162mW CAZ2, LOS, LOS, TH..................................-0.5V to (V + 0.5V) 10-Pin MAX (derate 20mW/C above +70C) ...........1600mW CC Voltage at LEVEL...................................................-0.5V to +2.0V Operating Ambient Temperature Range .............-40C to +85C Current into LOS, LOS ..........................................-1mA to +9mA Storage Temperature Range .............................-55C to +150C Differential Input Voltage (IN+ - IN-) .....................................2.5V Processing Temperature (dice) .......................................+400C Continuous Current at Lead Temperature (soldering, 10s) .................................+300C CML Outputs (OUT+, OUT-) ..........................-25mA to +25mA Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation 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 (Data outputs terminated per Figure 1, V = +3.0V to +5.5V, T = 0C to +70C. Typical values are at V = +3.3V, T = +25C, CC A CC A unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX UNITS MAX3264/MAX3268/MAX3768 1.25 Data Rate Gbps MAX3265/MAX3269/MAX3765 2.5 MAX3264/MAX3268/MAX3768 5 1200 Input Voltage Range mV MAX3265/MAX3269/MAX3765 10 1200 MAX3264/MAX3268/MAX3768 (Notes 2, 3) 14 30 Deterministic Jitter psp-p MAX3265/MAX3269/MAX3765 (Notes 2, 3) 11 25 MAX3264/MAX3268/MAX3768 (Notes 2, 4) 15 Random Jitter ps RMS MAX3265/MAX3269/MAX3765 (Notes 2, 4) 8 MAX3264 (Note 5) 80 175 300 MAX3265/MAX3765 (Note 6) 100 150 Data Output Edge Speed ps MAX3268/MAX3768 (Note 5) 80 150 300 MAX3269 (Note 6) 100 150 LOS Hysteresis (Notes 2, 7) 2.5 4.4 dB LOS Assert/Deassert Time (Notes 7, 8) 1 s MAX3264/MAX3268/MAX3768 1.20 2.6 Low LOS Assert Level R = 2.5k mV TH MAX3265/MAX3269/MAX3765 2.20 4.8 MAX3264/MAX3268/MAX3768 4.5 Low LOS Deassert Level R = 2.5k mV TH MAX3265/MAX3269/MAX3765 8.5 2 MAX3264/MAX3265/MAX3268/MAX3269/MAX3765/MAX3768