MAX3980 Datasheet | Maxim Integrated

19-2153; Rev 3; 12/08 .. KIT ATION EVALU E L B AVAILA 3.125Gbps XAUI Quad Equalizer General Description Features - Four Differential Digital Data “Lanes” at 3.125Gbps - Spans 40in (1.0m) of FR-4 PC Board - Receiver Equalization Reduces Intersymbol Interference (ISI) - Low-Power, 175m W per Channel - Standby Mode- Power-Down State - Single +3.3V Supply - Signal Detect The MAX3980 quad equalizer provides pensation for transmission medium losses for four “lanes” of digital NRZ data at a 3.125Gbps data rate in one package. It is tailor-made for 10-Gigabit Ethernet (10Gb E) backplane applications requiring attenuation of noise and jitter that occur in municating from MAC to PMD or from MAC to Switch. In support of the IEEE-802.3ae for the XAUI interface, the MAX3980 adaptively allows XAUI lanes to reach up to 40in (1.0m) on FR-4 board material. The equalizer has 100Ω differential CML data inputs and outputs. The MAX3980 is available in a 44-pin exposed-pad QFN package. The MAX3980 consumes only 700m W at +3.3V or 175m W per channel. Ordering Information PART TEMP RANGE 0°C to +85°C 0°C to +85°C PIN-PACKAGE 44 QFN-EP- 44 TQFN-EP- MAX3980UGH MAX3980UTH+ Applications IEEE-802.3ae XAUI Interface (3.125Gbps) Infini Band SM (2.5Gbps) +Denotes a lead-free/Ro HS-pliant package. - EP = Exposed pad. Pin Configuration appears at end of data sheet. Typical Application Circuit LINE CARD PC BOARD BACKPLANE PMD MAC ≤ 40in (1.0m) Rx Tx 4 Rx Tx 4 x 3.125Gbps 10Gb E 4x 3.125Gbps 4 4 +3.3V SUPPLY 4 IN OUT 4 Rx SWITCH SWITCH CARD +3.3V SUPPLY Tx Rx Tx Rx IN ≤ 40in (1.0m) Tx Infini Band is a trademark and service mark of the Infini Band Trade...