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PDF EL6935CL-T13 Data sheet ( Hoja de datos )
| Número de pieza | EL6935CL-T13 | |
| Descripción | Laser Diode Driver w/Waveform Generator | |
| Fabricantes | Intersil Corporation | |
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®
Data Sheet
August 18, 2004
EL6935
FN7409.1
Laser Diode Driver w/Waveform Generator
The EL6935 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 generator 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 flexible architecture supports different media and
speeds for Blue, DVD, and CD standards. The programming
is accomplished through a serial interface port. The clock
and NRZ inputs can be either standard CMOS or LVDS,
selectable through a program bit.
The EL6935 operates on a 5V supply for the analog circuits
and a 2.5V supply for the digital circuits.
Ordering Information
PART
NUMBER
EL6935CL
PACKAGE
38-Pin QFN
TAPE & REEL PKG. DWG. #
- MDP0046
EL6935CL-T7 38-Pin QFN
7”
MDP0046
EL6935CL-T13 38-Pin QFN
13”
MDP0046
Features
• Completely programmable laser diode driver
• 500mA maximum total output
• 10-bit x 10-bit multiplying DAC output provides 10-bit full
scale adjustment and 10-bit resolution at any full scale
output
• 55psec 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, DVD+RW, and
Blue
• 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 and
gain selects
• Programmable DC output when HFM is off
Applications
• Combination DVD writable and CD writable drives
• DVD camcorders
• DVD video recorders
Get FULL DATASHEET
1
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. 2002-2004. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners.
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