EL6204 Datasheet PDF - Intersil
| Part Number | EL6204 | |
| Description | Laser Driver Oscillator | |
| Manufacturers | Intersil | |
| Logo |  |
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DATASHEET
Laser Driver Oscillator
EL6204
The EL6204 is a push-pull oscillator used to reduce laser noise.
It uses the standard interface to existing ROM controllers. The
frequency and amplitude are each set with a separate resistor
connected to ground. The tiny package and harmonic
reduction allow the part to be placed close to a laser with low
RF emissions. An auto turn-off feature allows it to easily be
used on combo CD-RW plus DVD-ROM pickups.
If the APC current is reduced such that the average laser
voltage drops to less than 1.1V, the output and oscillator are
disabled, reducing power consumption to a minimum.
The current drawn by the oscillator consists of a small utility
current, plus the peak output amplitude in the positive cycle. In
the negative cycle the oscillator subtracts peak output
amplitude from the laser APC current.
The EL6204 part is available in the space-saving 6 Ld SOT-23
package and is specified for operation from 0°C to +70°C.
Features
• Low power dissipation
• User-selectable frequency from 60MHz to 600MHz
controlled with a single resistor
• User-specified amplitude from 10mAP-P to 100mAP-P
controlled with a single resistor
• Auto turn-off threshold
• Soft edges for reduced EMI
• Small 6 Ld SOT-23 package
Applications
• DVD players
• DVD-ROM drives
• CD-RW drives
• MO drives
• General purpose laser noise reduction
• Local oscillators
IOUT 1
VDD 2
GND1 3
DRIVER
OSCILLATOR
AUTO SHUT-OFF
REFERENCE AND
BIAS
FIGURE 1. BLOCK DIAGRAM
6 RFREQ
5 GND2
4 RAMP
October 28, 2015
FN7219.3
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2004-2007, 2015. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
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EL6204
Driver Characteristics VDD = +5V, TA = +25°C, RL = 10Ω, RFREQ = 30.5kΩ (FOSC = 60MHz), RAMP = 2540Ω (IOUT = 50mAP-P measured
at 60MHz), VOUT = 2.2V. (Continued)
PARAMETER
DESCRIPTION
TEST CONDITIONS
MIN MAX
(Note 7) TYP (Note 7) UNIT
tON Auto Turn-on Time
Output voltage step from 0V to 2.2V
15
tOFF Auto Turn-off Time
Output voltage step from 2.2V to 0V
0.5
IOUTN
Output Current Noise Density
RFREQ = 5210Ωmeasured at 10MHz
2.5
NOTE:
7. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
µs
µs
nA/Hz
IOUT Control
VOUT
Less than VCUTOFF
More than VCUTOFF
Typical Performance Curves
otherwise specified.
500
TYPICAL
PRODUCTION
400 DISTORTION
300
200
100
0
IOUT
OFF
Normal Operation
VDD = 5V, TA = 25°C, RL = 10Ω, RFREQ = 5.21kΩ, RAMP = 2.54kΩ, VOUT = 2.2V unless
8
MEASURED FROM
7 -40°C TO +85°C
6
5
4
3
2
1
0
FREQUENCY (MHz)
FIGURE 3. FREQUENCY DISTRIBUTION
FREQUENCY TC (ppm/°C)
FIGURE 4. FREQUENCY DRIFT WITH TEMPERATURE
700
600
500
400
300
200
100
0
0
FREQUENCY = 1824*1kΩ/RFREQ (MHz)
5 10 15 20 25 30
RFREQ (kΩ)
FIGURE 5. FREQUENCY vs RFREQ
35
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5
700
FREQUENCY = 1824*1kΩ/RFREQ (MHz)
600
500
400
300
200
100
0
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35
1kΩ / RFREQ
FIGURE 6. FREQUENCY vs 1/RFREQ
FN7219.3
October 28, 2015
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for EL6204 electronic component. |
| Information | Total 12 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ EL6204.PDF Datasheet ] | |
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