adld8404acpz-r7 Analog Devices, Inc., adld8404acpz-r7 Datasheet

adld8404acpz-r7

Manufacturer Part Number

adld8404acpz-r7

Description

Manufacturer

Analog Devices, Inc.

Datasheet

1.ADLD8404ACPZ-R7.pdf (2 pages)

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Preliminary Technical Data

FEATURES

Two differential DSL channels comprised of current

Ideal for use as ADSL2+/VDSL2 dual-channel Central Office

Low power consumption using Class H Technology

High output voltage and current drive

Low distortion

Low cost protection components enable K20 & GR1089

compliance

Protected by US Patent 6,636,103

APPLICATIONS

ADSL2+/VDSL2 CO line drivers

ADSL2+/VDSL2 FTTX line drivers

GENERAL DESCRIPTION

The ADLD8404 is comprised of two differential, high output

current, low power consumption operational amplifiers. It is

particularly well suited for the CO & FTTX driver interface in

digital subscriber line systems, such as ADSL2+ and VDSL2.

The driver can deliver 20.4 dBm to a line while compensating

for losses due to hybrid insertion and back-termination

resistors. ADLD8404 uses second- generation Adaptive Linear

Power (Class H) architecture to achieve unprecedented power

efficiency while using a single power supply and three external

capacitors. Further functionality permits the shutdown of

pumps for enhanced power savings for line power < 14.5dBm.

This yields the smallest PCB footprint and lowest total cost of

ownership.

The low power consumption, high output current, high output

voltage swing, and robust thermal packaging enable the

ADLD8404 to be the CO or FTTX line driver in ADSL2+ and

VDSL2 systems.

The ADLD8404 is available in a 4 mm × 4mm 24 lead LFCSP.

Rev. PrA

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.

feedback, high output current amplifiers with integrated

resistors and biasing network

(CO) & FTTX (Remote Cabinet) line drivers

Single +14V supply operation

780 mW/channel total power dissipation while driving

475 mW/channel total power dissipation while driving

40 V p-p differential output voltage

-65 dBc typical MTPR @ 20.4 dBm, 26 kHz to 2.2 MHz

-55 dBc typical MTPR @ 14.5 dBm, 5.2MHz to 17.6MHz

20.4 dBm line power, 1:1.4 transformer

20.4 dBm (includes 110mW line power)

14.5 dBm (includes line power)

Ultra Low Power, Adaptive Linear Power

Dual-Port ADSL2+/VDSL2 Line Driver

17.5

12.5

-2.5

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

Tel: 781.329.4700

Fax: 781.461.3113

7.5

2.5

462.75

-5

VOCM

Figure 2. Class H Operation- red & green traces are internal signal-tracking

power supplies. Channel 1 (blue, black) = ADSL2+, Channel 2 (pink, light

INP

INN

463.5

Figure 1. Channel 1 Internal Schematics

time, x1e-6 Seconds

464.25

blue) = Profile 8b.

VCC

465

ADLD8404

465.75

www.analog.com

VOPA

VONA

™

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adld8404acpz-r7 Summary of contents

Page 1

... Channel 1 (blue, black) = ADSL2+, Channel 2 (pink, light One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 ADLD8404 VCC VCC + + VOPA VOPA VONA VONA + + 464.25 465 465.75 time, x1e-6 Seconds blue) = Profile 8b. www.analog.com ©2010 Analog Devices, Inc. All rights reserved. ™ , ...

Page 2

... ADLD8404 ORDERING GUIDE Model Temperature Range 1 ADLD8404ACPZ-R2 −40°C to +85°C ADLD8404ACPZ-R7 1 −40°C to +85°C 1 ADLD8404ACPZ-RL −40°C to +85° RoHS Compliant Part. ©2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. ...

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