ELANT EL6290CU, EL6290CJ Datasheet
EL6290C - Product Brief
Laser Diode Driver with Waveform Generator
EL6290C - Product Brief
Features
• 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
• 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
• Analog input supports APC
• HFM oscillator programmable to
100mAp-p from 200 to 500MHz
• PLL allows reduced-frequency
clock on flex cable
• Separate serial input works up to
25Mb/sec
Applications
• Combination DVD writable and
CD writable drives
• DVD Camcorders
• DVD Video Recorders
Ordering Information
Part No Temp. Range Package Outline #
EL6290CU 0°C to +75°C 24-Lead QSOP MDP00040
EL6290CL 0°C to +70°C 32-Lead QFN MDP0045
EL6290CJ 0°C to +70°C 32-Lead LPP MDP0046
General Description
The EL6290C 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.
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.
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.
Connection Diagrams
32
31
30
29
28
27
1
2
3
4
5
6
7
8
9
10
11
12
SDIO
SCLK
R/W
CLK
NRZ
VSL
GND
VSA
RFREQ
RSET
IAPC
GND
SEN
MON
VSO
OUT1
OUT1
GND
VSO
OUT2
OUT2
VSO
L/G
ENA
24
23
22
21
20
19
18
17
16
15
14
13
R/W
CLK
1
NRZ
2
VSL
3
GND
4
GND
5
6
NC
VSA
7
8
VSA OUT2
RFREQ
9
RSET
IAPC
11
10
SEN
SDIO
SCLK
GND
NC
14
13
12
26
NC
NC
MON
25
VSO
24
OUT1
23
OUT1
GND
22
21
VSO
20
VSO
OUT2
19
18
VSO
17
L/G
ENA
GND
16
15
May 12, 2000
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
EL6290C - Product Brief
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 circuitry 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-
Elantec Semiconductor, Inc.
675 Trade Zone Blvd.
Milpitas, CA 95035
Telephone: (408) 945-1323
(888) ELANTEC
Fax: (408) 945-9305
European Office: +44-118-977-6020
Japan Technical Center: +81-45-682-5820
port or sustain life and whose failure to perform when properly used
in accordance with instructions provided can be reasonably
expected to result in significant personal injury or death. Users contemplating 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. Elantec, Inc.’s warranty is limited to replacement of defective
components and does not cover injury to persons or property or
other consequential damages.
May 12, 2000
2
Printed in U.S.A.
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