intersil EL1526 DATA SHEET

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EL1526

Data Sheet February 11, 2005

Dual Channel Differential DSL Line Driver for Centillium Maximus CO Chipsets

The EL1526 is to be used with Centillium's Maximus CO chipset for very high performance ADSL applications. The line driver supports use of ADSL downstream spectrum up to

3.75MHz, beyond traditional 1.1MHz range. For the extended spectrum, payload rates up to 50Mbps is achievable in conjunction of High-Bit-Loading (HBL) feature of Maximus CO chipset. This feature allows DMT tones to carry higher than 15 bits per tone, resulting in higher performance ADSL services.

The EL1526 is an integral part of the signal chain for HBL. The driver has been optimized for flat gain response and reduced harmonic distortion and noise in the bands of interest to improve the overall signal to noise in the system. A unique internal compensation circuit eliminates the need for external common mode snubber filters in active termination applications.

These drivers achieve a total harmonic distortion (THD) measurement of typically -64dB @ 2.2MHz, while consuming typically 5mA per DSL channel of total supply current. This supply current can be set using a resistor on the I adjust supply current to one of four pre-set modes (full-I 3/4-I on ±5V to ±12V supplies and retains its bandwidth and linearity over the complete supply range.

The device is supplied in the small footprint (4x5mm) 24-pin QFN package and is specified for operation over the full

-40°C to +85°C temperature range.

pin. Two other pins (C0 & C1) can also be used to

ADJ

, 1/2-IS, and full power-down). The EL1526 operates

FN7405.1

Features

• 450mA output drive capability

•44.1V

• -85dBc THD @ 1MHz 2V

differential output drive into 100Ω

P-P

• High slew rate of 500V/µs

• Bandwidth - 46MHz

• Current control pins

• Channel separation

- 80dB @ 500kHz

-75dB @ 1MHz

• Pb-Free available (RoHS compliant)

Applications

• ADSL line drivers for Centillium Maximus CO chipsets

Pinout

EL1526

(24-PIN QFN)

TOP VIEW

C1AB

C0AB

VS-

VOUTA

VINA+

VINB+

GND

IADJ

THERMAL

PAD

VINA-

VINB-

VOUTB

VOUTC

VINC-

Ordering Information

PART

NUMBER PACKAGE

EL1526IL 24-Pin QFN - MDP0046 EL1526IL-T7 24-Pin QFN 7” MDP0046 EL1526IL-T13 24-Pin QFN 13” MDP0046 EL1526ILZ

(See Note) EL1526ILZ-T7

(See Note) EL1526ILZ-T13

(See Note)

NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pbfree requirements of IPC/JEDEC J STD-020C.

24-Pin QFN

(Pb-Free)

24-Pin QFN

(Pb-Free)

24-Pin QFN

(Pb-Free)

TAPE &

REEL PKG. DWG. #

- MDP0046

7” MDP0046

13” MDP0046

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

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| Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

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VOUTD

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EL1526

All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.

Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality

Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implic atio n or other wise u nde r any p a tent or patent rights of Intersil or it s sub sidi ari es.

For information regarding Intersil Corporation and its products, see www.intersil.com

FN7405.1

February 11, 2005