MAX3882 Datasheet | Maxim Integrated

19-2718; Rev 0; 1/03 .. 2.488Gbps/2.67Gbps 1:4 Demultiplexer with Clock and Data Recovery and Limiting Amplifier General Description The MAX3882 is a deserializer bined with clock and data recovery and limiting amplifier ideal for converting 2.488Gbps/2.67Gbps serial data to 4-bit-wide, 622Mbps/667Mbps parallel data for SDH/SONET applications. The device accepts serial NRZ input data as low as 10m VP-P of 2.488Gbps/2.67Gbps and generates four parallel LVDS data outputs at 622Mbps/667Mbps. Included is an additional high-speed serial data input for system loopback diagnostic testing. For data acquisition, the MAX3882 does not require an external reference clock. However, if needed, the loopback input can be connected to an external reference clock of 155MHz/167MHz or 622MHz/667MHz to maintain a valid clock output in the absence of input data transitions. Additionally, a TTL-patible loss-of-lock output is provided. The device provides a vertical threshold adjustment to pensate for optical noise generated by EDFAs in WDM transmission systems. The MAX3882 operates from a single +3.3V supply and consumes 610m W. The MAX3882’s jitter performance exceeds all SDH/ SONET specifications. The device is available in a 6mm ✕ 6mm 36-pin QFN package. Features o No Reference Clock Required for Data Acquisition o Input Data Rates: 2.488Gbps or 2.67Gbps o Fully Integrated Clock and Data Recovery with Limiting Amplifier and 1:4 Demultiplexer o Parallel Output Rate: 622Mbps/667Mbps o Differential Input Range: 10m VP-P to 1.6VP-P without Threshold Adjust o Differential Input Range: 50m VP-P to 600m VP-P with Threshold Adjust o 0.65UI High-Frequency Jitter Tolerance o Loss-of-Lock (LOL) Indicator o Wide Input Threshold Adjust Range: ±170m V o Maintain Valid Clock Output in Absence of Data Transitions o System Loopback Input Available for System Diagnostic Testing o Operating Temperature Range -40°C to +85°C o Low Power Dissipation: 610m W at...