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ADN4604ASVZ

4.25 Gbps, 16 × 16, Digital Crosspoint Switch

Analog Devices 

4.25 Gbps,

16 × 16, Digital Crosspoint Switch

ADN4604

FEATURES

DC to 4.25 Gbps per port NRZ data rate

Programmable receive equalization

12 dB boost at 2 GHz

Compensates 40 inches of FR4 at 4.25 Gbps

Programmable transmit preemphasis/deemphasis

Up to 12 dB boost at 4.25 Gbps

Compensates 40 inches of FR4 at 4.25 Gbps

Low power: 130 mW per channel at 3.3 V (outputs enabled)

16 × 16, fully differential, nonblocking array

Double rank connection programming with dual

connection maps

Low jitter, typically 20 ps

Flexible I/O supply range

DC- or ac-coupled differential CML inputs

Programmable CML output levels

Per-lane input P/N pair inversion for routing ease

50 Ω on-chip I/O termination

Supports 8b/10b, scrambled or uncoded NRZ data

Serial (I2C slave or SPI) control interface

100-lead TQFP, Pb-free package

APPLICATIONS

Fiber optic network switching

High speed serial backplane routing to OC-48 with FEC

XAUI: 10GBASE-KX4

Gigabit Ethernet over backplane: 1000BASE-KX

1×, 2×, and 4× Fibre Channel

InfiniBand®

Digital video (HDMI, DVI, DisplayPort, 3G-/HD-/SD-SDI)

Data storage networks

GENERAL DESCRIPTION

The ADN4604 is a 16 × 16 asynchronous, protocol agnostic,

digital crosspoint switch, with 16 differential PECL-/CML-

compatible inputs and 16 differential CML outputs.

The ADN4604 is optimized for nonreturn-to-zero (NRZ) sig-

naling with data rates of up to 4.25 Gbps per port. Each port

offers a fixed level of input equalization and programmable

output swing and output preemphasis.

FUNCTIONAL BLOCK DIAGRAM

DVCC

VCC

IP[15:0]

VTTIE,

VTTIW

IN[15:0]

RX

TX

EQ

16 × 16

SWITCH

MATRIX

PRE-

EMPHASIS

OP[15:0]

VTTON,

VTTOS

ON[15:0]

RESET

UPDATE

I2C/SPI

ADDR1/SDI

ADDR0/CS

SDA/SDO

SCL/SCK

CONNECTION

MAP 0

CONNECTION

MAP 1

SERIAL

INTERFACE

CONTROL

LOGIC

OUTPUT

LEVEL

HOOKUP

TABLE

PER-PORT

OUTPUT

LEVEL

SETTINGS

ADN4604

VEE

Figure 1.

The ADN4604 nonblocking switch core implements a 16 × 16

crossbar and supports independent channel switching through

the serial control interface. The ADN4604 has low latency and

very low channel-to-channel skew.

An I2C® or SPI interface is used to control the device and pro-

vide access to advanced features, such as additional levels of

preemphasis and output disable.

The ADN4604 is packaged in a 100-lead TQFP package and

operates from −40°C to +85°C.

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

Fax: 781.461.3113

©2009 Analog Devices, Inc. All rights reserved.

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