MAX3803

19-2699; Rev 0; 2/03 DC-Coupled, UCSP 3.125Gbps Equalizer General Description The MAX3803 equalizer automatically provides compensation for transmission-medium losses encountered with FR4 stripline and cable in an incredibly small 2mm × 2.5mm package. It is ideal for backplane applications requiring up to 40in between the line card and the switch card or up to 10m of twin ax cable between racks. Its small size provides placement and routing flexibility. The CML inputs and outputs are DC-coupled and can be terminated to a supply as low as +1.1V. The MAX3803 operates from 0°C to +85°C and consumes 160mW at +3.3V. Features o DC-Coupled Input and Output to Terminations as Low as +1.1V o 2mm × 2.5mm UCSPTM o 1Gbps to 3.2Gbps Operating Range o Spans 40in (1m) of FR4 o Spans 10m, 28AWG Twin Ax o Receive Equalization to Reduce ISI MAX3803 Applications Backplane Interconnect Rack-to-Rack Interconnect Common-Mode Voltage Translation (LVDS, PECL, or CML) PART MAX3803UBP-T Ordering Information TEMP RANGE 0°C to +85°C PIN-PACKAGE 5 x 4 UCSP Pin Configuration appears at end of data sheet. UCSP is a trademark of Maxim Integrated Products, Inc. Typical Application Circuit LINE CARD +1.1V ≤ V ≤ VCC +3.3V MAC WITH SERDES 2 Rx Tx ≤40in (1m) VTI 2 IN PC BOARD BACKPLANE VCC VTO 2 OUT 2 Rx SWITCH ASIC WITH SERDES SWITCH CARD +1.1V ≤ V ≤ VCC FR4 STRIPLINE MAX3803 +3.3V VCC 2 Tx Rx 2 OUT MAX3803 VTO VTI IN 2 2 FR4 STRIPLINE Tx +1.1V ≤ V ≤ VCC +1.1V ≤ V ≤ VCC ___________________________...