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EL6836 Fiches technique(PDF) 1 Page - Intersil Corporation

No de pièce EL6836
Description  Dual 4-Channel Driver with Oscillator
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Fabricant  INTERSIL [Intersil Corporation]
Site Internet  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

EL6836 Fiches technique(HTML) 1 Page - Intersil Corporation

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1
®
FN7351
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.
PRELIMINARY
EL6836
Dual 4-Channel Driver with Oscillator
The EL6836 is a high performance,
dual output, laser driver for writeable
DVD drives. 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 WEN2B,
WEN3B, and WEN4B. The oscillator is enabled when OSEN
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 input. The resistor allows
the user to optimize the current gain for each channel.
WEN2B, WEN3B, and WEN4B are CMOS input pins with a
1.68V threshold. Output write current pulses are enabled
when a low is applied to the WEN2B, WEN3B, or WEN4B
pin. The write current will flow to the selected output. When
SEL1 is high IOUT1 is selected. WENRB enables read and
oscillator current when low.
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 ENAs for power savings
Applications
• Super combo drives
• DVD drives
Pinout
EL6836
(32-PIN LPP)
TOP VIEW
Ordering Information
PART
NUMBER
TEMP. RANGE
PACKAGE
PKG. DWG. #
EL6836CL
0°C to +70°C
32-Pin LPP
MDP0046
25
24
23
21
20
19
18
2
3
4
5
6
7
8
THERMAL PAD
GND
WENRB
NC
WEN2B
NC
WEN3B
NC
VDDN
IOUT1
IOUT1
GND
VDDN
VDDN
IOUT2
9
WEN4B
1
RFREQ2
17 IOUT2
22 GND
Data Sheet
July 1, 2003
Get FULL DATASHEET


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