MAX3992UTG+T【PDF 1/12 页】IC DATA RECOVERY W/EQ 24-TQFN

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General Description

The MAX3992 is a 10Gbps clock and data recovery

(CDR) with equalizer IC for XFP optical transmitters. The

MAX3992 and the MAX3991 (CDR with limiting amplifier)

form a signal conditioner chipset for use in XFP trans-

ceiver modules. The chipset is XFI compliant and offers

multirate operation for data rates from 9.95Gbps to

11.1Gbps.

The MAX3992 recovers the data for up to 12 inches of

FR-4 and one connector without the need for a stand-

alone equalizer. The phase-locked loop is optimized for

jitter tolerance in SONET, Ethernet, and Fibre-Channel

applications. Low jitter generation of 4mUIRMS leaves

adequate margin for meeting SONET jitter requirements

at the optical output.

An AC-based power detector asserts the loss-of-signal

(LOS) output when the input signal is removed. An exter-

nal reference clock, with frequency equal to 1/64 or 1/16

of the serial data rate, is used to aid in frequency acqui-

sition. A loss-of-lock (LOL) indicator is provided to indi-

cate the lock status of the receiver PLL.

The MAX3992 is available in a 4mm x 4mm, 24-pin QFN

package. It consumes 356mW from a single +3.3V sup-

ply and operates over a 0°C to +85°C temperature range.

Applications

9.95Gbps to 11.1Gbps Optical XFP Modules

SONET OC-192/SDH STM-64 XFP Transceivers

10.3Gbps/11.1Gbps Ethernet XFP Transceivers

10.5Gbps Fibre-Channel XFP Transceivers

10Gbps DWDM Transceivers

10Gbps XFP Copper Modules

High-Speed Backplane Interconnects

Features

Multirate Operation from 9.95Gbps to 11.1Gbps

Span Up to 300mm (12in) FR4 with One Connector

Low-Output Jitter Generation: 4mUIRMS

Low-Output Deterministic Jitter: 4.6psP-P

XFI-Compliant Input Interface

LOS Indicator

LOL Indicator

Power Dissipation: 356mW

MAX3992

10Gbps Clock and Data Recovery

with Equalizer

________________________________________________________________ Maxim Integrated Products

19-3496; Rev 2; 11/06

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.

Ordering Information

PART

TEMP RANGE

PIN-

PACKAGE

PKG

CODE

MAX3992UTG

0°C to +85°C

24 QFN

T2444-4

MAX3992UTG+*

0°C to +85°C

24 QFN

T2444-4

VCC

GND

SDI-

SDI+

GND

VCC

GND

SDO-

SDO+

GND

VCC

SCLKO+

SCLKO-

FCTL2

POL

CFIL

VTH

FCTL1

REFCLK-

REFCLK+

LOS

LOL

MAX3992

4mm x 4mm QFN*

*THE EXPOSED PAD MUST BE CONNECTED TO CIRCUIT-BOARD GROUND FOR

PROPER THERMAL AND ELECTRICAL PERFORMANCE.

TOP VIEW

Pin Configuration

Typical Application Circuit appears at end of data sheet.

*Future product—contact factory for availability.

+Denotes lead-free package.

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