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EL6298
Data Sheet July 15, 2004 FN7274
Laser Diode Driver with Waveform Generator
The EL6298 is a highly integrated laser diode driver designed to support multi-standard writable optical drives. It accomplishes this by incorporating a waveform generator wherein the diode currents and timing details can be programmed before operation. The data input circuitry inspects the NRZ serial data waveform and generates programmed waveforms in recognition of 3, 4, 5, or 6 or more clock periods of space changing to 3, 4, 5, or 6 or more clock periods of mark, and vice versa. NRZ and clock are LVDS. This programmable architecture allows reprogramming of the timers to support different media, DVD or CD standards, and different speeds. The programming is accomplished through a serial interface port. Two outputs are provided to support dual-laser multi-standard optical heads. The EL6298 requires 3.3V and 5V supplies, with all the logical interface operating on the 3.3V supply. The EL6298 is available in 32-pin QFN and 32-pin QFN packages for improved thermal performance and reduced footprint.
Features
* 4MHz - 200MHz clock * Complete programmable laser diode driver * 250mA maximum write output * 8-bit x 8-bit multiplying DAC output provides 8-bit full scale adjustment and 8-bit resolution at any full scale output * 0.12ns timer resolution * Two laser outputs allows read/write DVD and CD combinations * Programmable waveform values support 2.6GB DVDRAM, 4.7GB DVD-RAM, DVD-R, DVD+RW, DVD-RW, CD-RW, and CD-R * Analog input supports APC * HFM oscillator programmable to 100mAP-P from 200MHz to 600MHz * PLL allows reduced-frequency clock on flex cable * Separate serial input works up to 25Mb/sec * Pb-free available
Applications
* Combination DVD writable and CD writable drives * DVD camcorders * DVD video recorders
Ordering Information
PART NUMBER EL6298CL EL6298CL-T7 EL6298CL-T13 EL6298CLZ (See Note) EL6298CLZ-T7 (See Note) EL6298CLZT13 (See Note) PACKAGE 32-Pin QFN 32-Pin QFN 32-Pin QFN 32-Pin QFN (Pb-free) 32-Pin QFN (Pb-free) 32-Pin QFN (Pb-free) TAPE & REEL 7" 13" 7" 13" PKG. DWG. # MDP0046 MDP0046 MDP0046 MDP0046 MDP0046 MDP0046
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NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which is 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 Pb-free requirements of IPC/JEDEC J Std-020B.
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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright (c) Intersil Americas Inc. 2003-2004. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc. All other trademarks mentioned are the property of their respective owners.
EL6298
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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 implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com 2

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