Features: ` +3.0V to +5.5V Supply Voltage
` Low Deterministic Jitter
14ps (MAX3264)
11ps (MAX3265/MAX3765)
` 150ps (max) Edge Speed (MAX3265/MAX3765) 300ps (max) Edge Speed (MAX3264)
` Programmable Signal-Detect Function
` Choice of CML or PECL Output Interface
` 10-Pin MAX or 16-Pin TSSOP PackageApplication·Gigabit Ethernet Optical Receivers
·Fibre Channel Optical Receivers
·System Interconnect
·ATM Optical ReceiversPinout
SpecificationsSupply Voltage (VCC) ............................................-0.5V to +6.0V
Voltage at IN+, IN- ..........................(VCC - 2.4V) to (VCC + 0.5V)
Voltage at SQUELCH, CAZ1,
CAZ2, LOS, LOS, TH.....................................-0.5V to (VCC + 0.5V)
Voltage at LEVEL...................................................-0.5V to +2.0V
Current into LOS, LOS ..........................................-1mA to +9mA
Differential Input Voltage (IN+ - IN-) ...................................2.5V
Continuous Current at
CML Outputs (OUT+, OUT-) ..............................-25mA to +25mA
Continuous Current at PECL Outputs (OUT+, OUT-) ..........50mA
Continuous Power Dissipation (TA = +70°C)
16-Pin TSSOP (derate 27mW/°C above +70°C) .........2162mW
10-Pin MAX (derate 20mW/°C above +70°C) ...........1600mW
Operating Ambient Temperature Range ..........-40°C to +85°C
Storage Temperature Range ..........................-55°C to +150°C
Processing Temperature (dice) ......................................+400°C
Lead Temperature (soldering, 10s) ...............................+300°C
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.
DescriptionThe 1.25Gbps MAX3264/MAX3268 and the 2.5Gbps MAX3265/MAX3269/MAX3765 limiting amplifiers are designed for Gigabit Ethernet and Fibre Channel optical receiver systems. The amplifiers MAX3765 accept a wide range of input voltages and provide constant-level output voltages with controlled edge speeds. Additional features include RMS power detectors with programmable lossof- signal (LOS) indication, an optional squelch function that mutes the data output signal when the input voltage falls below a programmable threshold, and excellent jitter performance.
The MAX3264/MAX3265/MAX3765 feature currentmode logic (CML) data outputs that are tolerant of inductive connectors and a 16-pin TSSOP package, making these circuits ideal for GBIC receivers. The MAX3268/MAX3269 feature standards-compliant positive- referenced emitter-coupled logic (PECL) data outputs and are available in a tiny 10-pin MAX package that is ideal for small-form-factor receivers.
MAX3765 Data Sheet
