ADN4605 datasheet(1/56 Pages) AD

Part #	ADN4605

Description	4.25 Gbps 40 횞 40 Digital

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4.25 Gbps 40 × 40 Digital

Crosspoint Switch

Data Sheet

ADN4605

FEATURES

DC to 4.25 Gbps per port NRZ data rate

Adjustable receive equalization

3 dB, 6 dB, or 12 dB boost

Compensates over 40 inches of FR4 at 4.25 Gbps

Adjustable transmit preemphasis/deemphasis

Programmable boost and output level

Compensates over 40 inches of FR4 at 4.25 Gbps

Low power

105 mW per channel at 2.5 V (400 mV p-p differential

output level swing)

40 × 40, fully differential, nonblocking array

Double rank connection programming with dual maps

Low jitter, typically <25 ps

Flexible 2.5 V to 3.3 V supply range

DC- or ac-coupled differential PECL/CML inputs

Differential CML outputs

Per-lane polarity inversion for routing ease

50 Ω on-chip I/O termination with disable feature

Supports 8b10b, scrambled or uncoded NRZ data

Serial (IC slave or SPI) control interface

Parallel control interface

FUNCTIONAL BLOCK DIAGRAM

EQ

Rx

Tx

PRE-

EMPHASIS

40 × 40

SWITCH

MATRIX

CONNECTION

MAP 1

CONNECTION

MAP 0

PARALLEL/SERIA L CONTROL

LOGIC INTERFACE

PRE-

EMPHASIS

LEVEL

SETTINGS

OUTPUT

LEVEL

SETTINGS

ADN4605

VCC

VEE

DVCC

OP[39:0]

VTTOA,

VTTOB

ON[39:0]

IP[39:0]

VTTIA,

VTTIB

IN[39:0]

I2C/SPI

(UPDATE)

SDI/RE

SCL/SCK/

WE

RESET

SER/PAR

CS

EQUALIZATION

SETTINGS

DATA[1]

(UPDATE)

DATA[0]/

SDA/SDO

DATA[7:2]

ADDR[7:0]

Figure 1.

APPLICATIONS

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

Fiber optic network switching

High speed serial backplane routing to OC-48 with FEC

XAUI, 4x Fibre Channel, Infiniband®, and GbE over backplane

Data storage networks

GENERAL DESCRIPTION

The ADN4605 is a 40 × 40 asynchronous, protocol agnostic,

digital crosspoint switch, with 40 differential PECL/CML-

compatible inputs and 40 differential programmable CML

outputs.

The ADN4605 is optimized for NRZ signaling with data rates of

up to 4.25 Gbps per port. Each port offers adjustable levels of

input equalization, programmable output swing, and output

preemphasis/deemphasis.

The ADN4605 nonblocking switch core implements a 40 × 40

crossbar and supports independent channel switching through

serial and parallel control interfaces. The ADN4605 has low

latency and very low channel-to-channel skew.

An I2C, SPI, or parallel interface is used to communicate with

the device for control of connectivity and other features.

The ADN4605 is assembled in a 35 mm × 35 mm, 352 BGA

package and operates over a temperature range of −40°C

to +85°C.

Rev. A

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

responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother

rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No

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

Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.

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

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