Quad equalizer achieves highest data rate, lowest power consumption

Quad equalizer achieves highest data rate, lowest power consumption

Device provides 20 dB of boost to equalize up to 10 m of CAT5 cable

The DS64EV400 quad equalizer extends the reach of high-speed serial buses up to data transmission rates of 10 Gbits/s, while consuming 94 mW per channel. The device provides 20 dB of boost to equalize up to 10 m of CAT5 cable, up to 40 in. of FR-4 printed circuit board at data transmission rates up to 6.4 Gbits/s and up to 30 in. of FR-4 at data rates up to 10 Gbits/s — with only 0.175 units interval of residual jitter at the equalizer output.

Each equalizer channel has eight equalization levels simultaneously set by three control pins, or individually programmed through a Serial Management Bus. The DS64EV400 supports both ac- and dc-coupled datapaths for long-run-length PRBS-31 data patterns and balanced 8b/10b codes.

The equalizer uses differential current-mode logic (CML) inputs and outputs, and features 8 kV of ESD protection. Additionally, it includes a loss-of-signal detect for each channel, operates over the full 40 to 85C temperature range and is powered from either a 2.5- or 3.3-V supply. ($16 ea/1,000—available now.)

National Semiconductor , Santa Clara , CA
Sales 800-272-9959

http://www.national.com