1FEATURES

23• Equalizes up to 14 dB Loss at 3.2 Gbps

• 8 Levels of Programmable Equalization

• Settable Through Control Pins or SMBus

Interface

• Operates up to 3.2 Gbps With 40” FR4 Traces

• 0.12 UI Residual Deterministic Jitter at 3.2

Gbps With 40” FR4 Traces

• Single 2.5V or 3.3V Power Supply

• Signal Detect for Individual Channels

• Standby Mode for Individual Channels

• Supports AC or DC-Coupling With Wide Input

Common-Mode

• Low Power Consumption: 375 mW Typ at 2.5V

• Small 7 mm x 7 mm 48-pin WQFN Package

• 9 kV HBM ESD Rating

• -40 to 85°C Operating Temperature Range

APPLICATIONS

• DisplayPort

• XAUI

• InfiniBand

• Other 8b10b Applications

DESCRIPTION

The DS32EV400 programmable quad equalizer

provides compensation for transmission medium

losses and reduces the medium-induced deterministic

jitter for four NRZ data channels. The DS32EV400 is

optimized for operation up to 3.2 Gbps for both

cables and FR4 traces. Each equalizer channel has

eight levels of input equalization that can be

programmed by three control pins, or individually

through a Serial Management Bus (SMBus) interface.

The device equalizes up to 14 dB of loss at 3.2 Gbps.

The equalizer supports both AC and DC-coupled data

paths for long run length data patterns such as

PRBS-31, and balanced codes such as 8b/10b. The

device uses differential current-mode logic (CML)

inputs and outputs.

Each channel has an independent signal detect output and independent enable input. The SD output

maybe tied to the EN to automatically control the

power up and down of the channel.

The DS32EV400 can be used in a variety of

applications that include DisplayPort, XAUI,

InfiniBand and other high-speed data transmission

applications.

The DS32EV400 is available in a 7 mm x 7 mm 48-

pin leadless WQFN package. Power is supplied from

either a 2.5V or 3.3V supply.