EL6290CL [RENESAS]
EL6290CL;
RENESAS TECHNOLOGY CORP 
EL6290C - Product Brief
Laser Diode Driver with Waveform Generator
Features
General Description
• Complete programmable laser
diode driver
• 250mA maximum output
• 8bit x 8bit multiplying DAC output
provides 8bit full scale adjustment
and 8bit resolution at any full scale
output
The EL6290C is a highly integrated laser diode driver designed to sup-
port 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 cir-
cuitry 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.
• 0.5ns timer resolution
• Two laser outputs allows
read/write DVD and CD
combinations
• Programmable waveform values
support 2.6GB DVD-RAM, 4.7GB
DVD-RAM, DVD-R, DVD+RW,
DVD-RW, CD-RW, and CD-R
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 EL6290C operates on a 5V supply, but has a separate logical
interface supply for 3.3V interface operation.
• Analog input supports APC
• HFM oscillator programmable to
100mAp-p from 200 to 500MHz
• PLL allows reduced-frequency
clock on flex cable
The EL6290C is availiable in a 24-lead QSOP, or in a 32-lead QFN
package for improved thermal performance and reduced board area
usage.
• Separate serial input works up to
25Mb/sec
Connection Diagrams
Applications
• Combination DVD writable and
CD writable drives
• DVD Camcorders
24
1
SDIO
SCLK
R/W
SEN
MON
VSO
23
22
21
20
19
18
17
16
15
14
13
• DVD Video Recorders
2
3
CLK
NRZ
VSL
GND
GND
1
2
3
4
5
6
7
8
9
25
24
23
22
21
20
19
18
17
VSO
OUT1
OUT1
GND
4
CLK
OUT1
Ordering Information
5
NRZ
OUT1
GND
Part No
EL6290CU
EL6290CL
EL6290CJ
Temp. Range
0°C to +75°C
0°C to +70°C
0°C to +70°C
Package
Outline #
MDP00040
MDP0045
MDP0046
6
VSL
24-Lead QSOP
32-Lead QFN
32-Lead LPP
VSO
7
GND
VSA
VSO
NC
VSO
8
OUT2
VSA
OUT2
9
RFREQ
RSET
IAPC
GND
OUT2
VSO
L/G
VSA
OUT2
VSO
10
11
12
RFREQ
ENA
Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a “controlled document”. Current revisions, if any, to these
specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.
© 2001 Elantec Semiconductor, Inc.
EL6290C - Product Brief
Laser Diode Driver with Waveform Generator
General Disclaimer
Specifications contained in this data sheet are in effect as of the publication date shown. Elantec, Inc. reserves the right to make changes in the cir-
cuitry or specifications contained herein at any time without notice. Elantec, Inc. assumes no responsibility for the use of any circuits described
herein and makes no representations that they are free from patent infringement.
WARNING - Life Support Policy
Elantec, Inc. products are not authorized for and should not be used
within Life Support Systems without the specific written consent of
Elantec, Inc. Life Support systems are equipment intended to sup-
port or sustain life and whose failure to perform when properly used
in accordance with instructions provided can be reasonably
Elantec Semiconductor, Inc.
675 Trade Zone Blvd.
Milpitas, CA 95035
Telephone: (408) 945-1323
(888) ELANTEC
expected to result in significant personal injury or death. Users con-
templating application of Elantec, Inc. Products in Life Support
Systems are requested to contact Elantec, Inc. factory headquarters
to establish suitable terms & conditions for these applications. Elan-
tec, Inc.’s warranty is limited to replacement of defective
components and does not cover injury to persons or property or
other consequential damages.
Fax:
(408) 945-9305
European Office: +44-118-977-6020
Japan Technical Center: +81-45-682-5820
Printed in U.S.A.
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