SP Amp Limiting Amp Single 5.5V 16-Pin QSOP

The MAX3645 limiting amplifier functions as a data quantizer and is pin compatible with the Mindspeed MC2045-2 and MC2045-2Y postamplifiers. The amplifier accepts a wide range of input voltages and provides constant-level positive emitter-coupled logic (PECL) output voltages with controlled edge speeds. The MAX3645 features an integrated power detector with complementary PECL loss-of-signal (LOS) outputs that indicate when the input power level drops below a programmable threshold. An optional squelch function holds the data outputs at static levels during a LOS condition. The MAX3645 operates from a single +3.3V or +5.0V power supply over a -40°C to +85°C temperature range. It is available in 16-pin SO and 16-pin QSOP packages.

• Pin Compatible with the Mindspeed MC2045-2/MC2045-2Y
• 500µV Input Sensitivity (BER = 10^-12)
• Compatible with 4B/5B Data Coding
• Programmable LOS Threshold
• Stable LOS Threshold Over Supply Range
• Output Disable Function and Automatic Squelch
• Single +3.3V or +5.0V Power Supply
• 18mA Supply Current