參數(shù)資料
型號： EL6119CL-T13
廠商： Intersil Corporation
英文描述： Dual 4-Channel Laser Diode Driver Oscillator
中文描述： 雙4通道激光二極管驅(qū)動器振蕩器
文件頁數(shù)： 1/2頁
文件大?。?/td> 23K
代理商： EL6119CL-T13
1
FN7208
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. 2003-2004. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners.
EL6119
Dual 4-Channel Laser Diode Driver +
Oscillator
The EL6119 is a dual four-channel
laser diode current amplifier that
provides controlled current to both a
CD and DVD laser diode. Channels 2, 3, and 4 should be
used as the write channels, with switching speeds of
approximately one nanosecond rise/fall time. All four
channels are summed together at the I
OUT
output, allowing
the user to create multilevel waveforms in order to optimize
laser diode performance. The level of the output current is
set by an analog voltage applied to an external resistor
which converts the voltage into a current at the I
IN
pin
(virtually ground). The current seen at this pin is then
amplified to become a current source at pin I
OUT
.
Output current pulses are enabled when an ‘L signal is
applied to the WEN pin. No output current flows when WEN
is ‘H’ and additional laser diode protection is provided since
the WEN input will float high when open. Complete I
OUT
shutoff is also achieved by holding the ENABLE pin low,
which will override the WEN control pins.
Each laser driver has a separate ENABLE pin to allow total
shutdown of each laser driver when not in use.
An on-chip 500MHz oscillator is provided to allow output
current modulation when in read mode. The oscillator is
enabled when the OSCEN pin is held high. Complete control
of amplitude and frequency is set by two external resistors
connected to ground at pins R
FREQ
and R
AMP
(see graphs
in this data sheet for further explanation).
Features
Leadless plastic package
Voltage controlled output current source, requiring one
external set resistor per channel
Rise time = 0.8ns
Fall time = 0.8ns
On chip oscillator with frequency and amplitude control by
use of external resistors to ground
Oscillator to 500MHz
Oscillator to 100mA
PK/PK
Single +5V supply (±10%)
Disable feature for power-up protection and power savings
CMOS control signals
Applications
CD + DVD Combo applications
Writable optical drives
Laser diode current switching
Ordering Information
PART
NUMBER
PACKAGE
TAPE & REEL
PKG. DWG. #
EL6119CL
32-Pin QFN
-
MDP0046
EL6119CL-T13
32-Pin QFN
13”
MDP0046
Data Sheet
June 15, 2004
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