EL6293C - Product Brief
EL6293C - Product Brief
Laser Diode Driver with Waveform Generator
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
• 0.17 nsec 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
100mA
P-P
from 200MHz to
600MHz
• PLL allows reduced-frequency
clock on flex cable
• Separate serial input works up to
25Mb/sec
General Description
The EL6293C 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.
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 EL6293C requires 3.3V and 5V supplies, with all the logical
interface operating on the 3.3V supply.
The EL6293C is available in a 32-pin LPP package for improved ther-
mal performance and reduced footprint.
Connection Diagram
28 MONITOR
26 RGAIN
25 PDIN
24 VREF
23 VSO
22 IOUT1
Thermal Pad
21 GND
20 VSO
19 OUT2
18 OUT2
17 VSO
RSET 10
IAPC 11
NC 12
GND 13
GND 14
ENA 15
L/G 16
27 VOUT
29 BUSY
32 SCLK
31 SDIO
30 SEN
Applications
• Combination DVD writable and
CD writable drives
• DVD camcorders
• DVD video recorders
RWB 1
CLK 2
NRZ 3
VSL 4
Ordering Information
Part No
EL6293CL
Temp. Range
0°C to +70°C
Package
32-Pin LPP
Outline #
MDP0046
GND 5
GND 6
VSA 7
VSA 8
RFREQ 9
May 23, 2001
32-Pin LPP Top View
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.
ELANTEC [ ELANTEC SEMICONDUCTOR ]
