MAX3645 Datasheet | Maxim Integrated

Description The MAX3645 limiting amplifier functions as a data quantizer and is pin patible 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 plementary 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. Features o Pin patible with the Mindspeed MC2045-2/MC2045-2Y o 500µV Input Sensitivity (BER = 10-12) o patible with 4B/5B Data Coding o Programmable LOS Threshold o o o o Stable LOS Threshold Over Supply Range Output Disable Function and Automatic Squelch Single +3.3V or +5.0V Power Supply 18m A Supply Current Ordering Information PART MAX3645ESE MAX3645EEE TEMP RANGE -40°C to +85°C -40°C to +85°C PIN-PACKAGE 16 SO 16 QSOP Applications SONET 155Mbps Transceivers Fast Ethernet Receivers FDDI 125Mbps Receivers FTTx Receivers ESCON Receivers TOP VIEW CAZ2 1 CAZ1 2 GNDA 3 DIN+ 4 DIN- 5 VCCA 6 CSD 7 DIS 8 Pin Configuration 16 TH 15 N.C. 14 VCCE 13 DOUT+ 12 DOUT11 GNDE 10 LOS 9 LOS SO/QSOP Typical Application Circuit VCC VCC VCC PIN K OUT+ 0.1µF DIN+ CSD 1n F CSD VCCA CAZ1 CAZ2 VCCE N.C. DOUT+ CAZ 0.1µF VCC MAX3644- IN GND OUT0.1µF DINGNDA TH DOUTLOS GNDE 50Ω 50Ω 50Ω RTH 100Ω 50Ω VCC - 2V VCC - 2V - FUTURE PRODUCT ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at .maxim-ic.. Data Sheet 4 U . .. +2.97V to +5.5V,...