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PDF EL6238 Data sheet ( Hoja de datos )
| Número de pieza | EL6238 | |
| Descripción | Dual 4 Channel Driver | |
| Fabricantes | Intersil | |
| Logotipo |  |
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®
Data Sheet
July 25, 2003
EL6238
www.DataSheet4U.com
FN7353
Dual 4 Channel Driver with Oscillator
The EL6238 is a high performance,
dual output, laser driver for writeable
‘super-combo’ CD - DVD drive. The
ENA pin enables the chip, while the SEL1 pin selects the
IOUT pin. Various waveforms can be generated where the
amplitude is determined by the currents flowing into IINR,
IIN2, IIN3, and IIN4. The timing is determined by the signals
at OUTEN2, OUTEN3, and OUTEN4. The oscillator is
enabled when OSCEN is high. The amplified IINR 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 IINR, IIN2, IIN3 and IIN4 inputs. The resistor allows
the user to optimize the current gain for each channel.
Output write current pulses are enabled when a low is
applied to the OUTEN2, OUTEN3, or OUTEN4 pin. The
write current will flow to the selected output. When SEL1 is
high IOUT1 is selected. OUTENR enables read and oscillator
current.
The RF oscillators frequency is determined by RFREQ1 or
RFREQ2, and its amplitude by RAMP1 or RAMP2.
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
• Channel 2 to 250mA max.
• Channel 3 to 150mA max.
• Channel 4 to 100mA max
• On chip oscillator with frequency and amplitude control by
use of external resistors to ground
• Oscillator frequency to 600MHz
• Oscillator amplitude to 100mAP-P
• Single +5V supply (±10%)
• Chip enables for power savings
Applications
• Super Combo drives
Ordering Information
PART NUMBER TEMP. RANGE PACKAGE
EL6238CL
0°C to +70°C 24-Pin LPP
PKG. DWG. #
MDP0046
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. 2003. 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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| PDF Descargar | [ Datasheet EL6238.PDF ] | |
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