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Part: EL6915CL-T7
Category:
Description: Laser Diode Driver, With Waveform Generator And I/V, 350mA, 8x8 DAC, Serial Input=25MHz, 120pS Timer Res
Company: Intersil Corporation
Datasheet: Download EL6915CL-T7 datasheet File size : 84 kB
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Datasheet text preview:
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EL6915
D a ta Sheet Ju l y 11, 2003 FN7276
Laser Diode Driver w/ Waveform Generator
The EL6915 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. The part also has an IV amplifier with concurrent read and write sampling. The gains of the IV amplifier are programmable, eliminating the need for external potentiometers. The 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 duallaser multi-standard optical heads. The clock and NRZ inputs can be either standard CMOS or LVDS, selectable through a program bit. The EL6915 operates on a 5V supply for the analog circuits and a 3.3V supply for the digital circuits.
Features
· Complete programmable laser diode driver · 350mA maximum total output · 8-bit x 8-bit multiplying DAC output provides 8-bit full scale adjustment and 8-bit resolution at any full scale output · 100ps timer resolution · Two laser outputs allows read/ write DVD and CD combinations · Programmable waveform values support CD-R, CD-RW, DVD-RAM, DVD-R, DVD-RW, DVD+R, and DVD+RW · Two analog inputs support slope and read APC · HFM oscillator programmable to 100mAP-P from 100MHz to 500MHz · PLL allows reduced-frequency clock on flex cable · Separate serial input works up to 100MHz · Dual sampled IV amplifier with programmable sample select and gain select · Programmable HFM offset when HFM is off
Applications
· Combination DVD writable and CD writable drives · DVD camcorders · DVD video recorders
Pinout
EL6915 (38-PIN LPP) TOP VIEW
3 5 RGAINB 3 2 RGAINA 34 VOUTB 33 VOUTA 38 SDIO 37 SEN 36 VSH
Ordering Information
31 PDIN 30 VREF 29 VSO 28 IOUT1 27 IOUT1
SCLK 1 MON1 2 RWB 3 NRZ 4 NRZB 5 GND 6 GND 7 CLKB 8 CLK 9 VSL 10 VSL 11 VSA 12 LG B 1 3 RFREQ 1 4 IAPC 15 ISLOPE 16 PGND 17 GND 18 MON2 19 THERMAL PAD
PART NUMBER EL691 5CL EL691 5CL-T 7 E L 6 9 1 5 C L - T 13
PA CKAGE 38-Pin LPP 38-Pin LPP 38-Pin LPP
TAPE & REEL 7" 13"
PKG. DWG. # MDP0046 M DP0046 MDP0046
26 GND 25 VSO 24 VSO 23 IOUT2 22 IOUT2 21 VSO 20 RSET
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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 © Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc. All other trademarks mentioned are the property of their respective owners.
EL6915
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 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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