PI2EQX3232BZDE PERICOM [Pericom Semiconductor Corporation], PI2EQX3232BZDE Datasheet

PI2EQX3232BZDE

Manufacturer Part Number

PI2EQX3232BZDE

Description

3.2Gbps, 2-Port, SATAi/m, Serial Re-Driver

Manufacturer

PERICOM [Pericom Semiconductor Corporation]

Datasheet

1.PI2EQX3232BZDE.pdf (7 pages)

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Features

• Supports data rates up to 3.2Gbps on each lane

• Adjustable Transmiter De-Emphasis & Amplitude

• Adjustable Receiver Equalization

• Spectrum Reference Clock Buffer Output

• Optimized for SATAi/m applications

• Input signal level detection & output squelch on all channels

• 100-Ohm Differential CML I/O’s

• Low Power (100mW per Channel)

• Standby Mode – Power Down State

• V

• Packaging (Pb-free & Green):48-contact TQFN

Block Diagram

xI+

xI-

SEL_EQ

CML

07-0225

Operating Range: 1.8V +/-0.1V

EN_x

CKIN-

CKIN+

Signal Detect

Equalizer

-- Repeated 4 times --

Management

Power

Bu f fe r

IREF

Limiting

Amp

SEL_OL_ x

EN_

CLK

CML

SEL_DE_ x

OUT-

OUT+

xO+

xO-

Description

Pericom Semiconductor’s PI2EQX3232B is a low power, signal

Re-Driver. The device provides programmable equalization,

ampliﬁ cation, and de-emphasis, to optimize performance over a

variety of physical mediums by reducing Inter-Symbol Interference

(ISI). PI2EQX3232B supports four 100-Ohm Differential CML

data I/O’s between the Protocol ASIC to a switch fabric, across

a backplane, or to extend the signals across other distant data

pathways on the user’s platform.

The integrated equalization circuitry provides ﬂ exibility with

signal integrity of the signal before the Re-Driver. Whereas the

integrated de-emphasis circuitry provides ﬂ exibility with signal

integrity of the signal after the Re-Driver.

A low-level input signal detection and output squelch function

is provided for all four channels. Each channel operates fully

independantly. When a channel is enabled (EN_x=1) and

operating, that channels input signal level (on xI+/-) determines

whether the output is enabled. If the input level of the channel

falls below the active threshold level (Vth-) then the output driver

switches off, and the pin is pulled to VDD via a high impedance

resistor. If the input level of the channel falls below the active

threshold level (Vth-) then the outputs are driven to the common

mode voltage.

In addition to providing signal re-conditioning, Pericom’s

PI2EQX3232B also provides power management Stand-by mode

operated by an Enable pin.

Pin Description

3.2Gbps, 2-Port, SATAi/m, Serial Re-Driver

VDD

BO +

DO +

CI+

DO-

CI-

AI+

BO-

AI-

GND

PI2EQX3232B

PS8889D

VDD

BI+

BI-

VDD

CO +

CO -

VDD

DI+

DI-

GND

AO +

10/03/07

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