1
FN7350.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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EL6833
Dual 4-Channel Driver with Oscillator &
LVDS
The EL6833 is a high performance,
dual output, laser driver for writeable
`super-combo' CD - DVD drives. The
ENA pin enables the chip, while the SEL1 pin selects the
I
OUT
pin. Various waveforms can be generated where the
amplitude is determined by the currents flowing into I
INR
,
I
IN2
, I
IN3
, and I
IN4
. The timing is determined by the signals
at WEN2-WEN2B, WEN3-WEN3B, and WEN4-WEN4B. The
oscillator is enabled when OSEN-OSENB is high. The
amplified I
INR
current of the selected channel is enabled
when the ENA pin is high. The total output current is the sum
of the read current, the enabled write currents, and the
oscillator current when enabled.
Usually a voltage DAC will drive a resistor that is in series
with the I
INR
, I
IN2
, I
IN3
and I
IN4
input. The resistor allows the
user to optimize the current gain for each channel.
Output write current pulses are enabled when a high is
applied to the WEN2-WEN2B, WEN3-WEN3B, or WEN-
WEN4B pin. The write current will flow to the selected
output. When SEL1 is high I
OUT1
is selected. WENRB
enables read and oscillator current when low.
The R
F
oscillators frequency is determined by R
FREQ1
or
R
FREQ2
, and its amplitude by R
AMP1
or R
AMP2
.
Features
Two channels for CD or DVD
Voltage-controlled output current source requiring one
external set resistor per channel
Rise time = 0.8ns
Fall time = 0.8ns
DVD - Channel 2 to 240mA max
DVD - Channel 3 to 170mA max
DVD - Channel 4 to 100mA max
CD - Channel 2 to 350mA max
CD - Channel 3 to 250mA max
On chip oscillator with frequency and amplitude control by
use of external resistors to ground
Oscillator frequency to 600MHz
Oscillator amplitude to 100mA
P-P
Single +5V supply (10%)
Chip ENAs for power savings
External LVDS termination
Pb-free available
Applications
Super combo drives
Ordering Information
PART NUMBER
PACKAGE
TAPE &
REEL
PKG. DWG. #
EL6833CL
32-Pin QFN
-
MDP0046
EL6833CL-T7
32-Pin QFN
7"
MDP0046
EL6833CL-T13
32-Pin QFN
13"
MDP0046
EL6833CLZ
(Note)
32-Pin QFN
(Pb-Free)
-
MDP0046
EL6833CLZ-T7
(Note)
32-Pin QFN
(Pb-Free)
7"
MDP0046
EL6833CLZ-T13
(Note)
32-Pin QFN
(Pb-Free)
13"
MDP0046
NOTE: Intersil Lead-Free products employ special lead-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which is compatible with both SnPb
and lead-free soldering operations. Intersil Lead-Free products are
MSL classified at lead-free peak reflow temperatures that meet or
exceed the lead-free requirements of IPC/JEDEC J Std-020B.
Data Sheet
July 15, 2004
Get FULL DATASHEET
2
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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
EL6833
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