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MAX3981 Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX3981 Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 9 page General Description The MAX3981 quad equalizer provides compensation for transmission medium losses for four “lanes” of digi- tal NRZ data at a data rate of 3.125Gbps in one package. It is tailor-made for 10Gigabit Ethernet appli- cations that require attenuation of noise and jitter that occur in communicating with chassis-to-chassis inter- connect. In support of IEEE-802.3ae for the XAUI inter- face, the MAX3981 adaptively allows XAUI lanes to reach 10m (33ft) with inexpensive twin-axial cable for extended backplane applications. The equalizer has 100 Ω differential CML data inputs and outputs. The MAX3981 is available in a 44-pin exposed-pad QFN package. The MAX3981 consumes only 700mW at 3.3V or 175mW per channel. Applications IEEE–802.3ae XAUI Interface (3.125Gbps) InfiniBand (2.5Gbps) Features ♦ Four Differential Digital Data “Lanes” at 3.125Gbps ♦ Span 10m (33ft) of Twin-Axial Cable ♦ Receiver Equalization Reduces Intersymbol Interference (ISI) ♦ Low Power, 175mW per Channel ♦ Standby Mode—Power-Down State ♦ Single 3.3V Supply ♦ Signal Detect 3.125Gbps XAUI Quad Cable Equalizer ________________________________________________________________ Maxim Integrated Products 1 Ordering Information LINE CARD PMD MAC Rx Rx Tx Tx Rx Rx Tx Tx 10GbE 4 4 4 4 4 4 4 x 3.125Gbps SWITCH CARD MAX3981 OUT IN 3.3V SUPPLY MAX3981 IN OUT 3.3V SUPPLY 10m (33ft)100 Ω TWIN-AX CABLE SWITCH Rx Tx Typical Operating Circuit 21-2178; Rev 1; 5/03 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Pin Configuration appears at end of data sheet. PART TEMP RANGE PIN- PACKAGE PACKAGE CODE MAX3981UGH 0°C to +85°C 44 QFN G4477-1 |
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