Features: * Low power dissipation
* User-selectable frequency from 100MHz to 600MHz controlled with a single resistor
* User-specified amplitude from 10mAPK-PK to 100mA PKcontrolled with a single resistor
* Auto turn-off threshold
* Soft edges for reduced EMI
* Small 5-pin SOT23 packageApplication*DVD players
* DVD-ROM drives
* CD-RW drives
* MO drives
* General purpose laser noise reductionPinout
SpecificationsVoltages Applied to:
VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . -0.5V to +6.0V
I OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . -0.5V to +6.0V
RFREQ , R AMP . . . . . . . . . . . . . . . . . . . . . .. . . . . . -0.5V to +6.0V
Operating Ambient Temperature Range . . . . . . . 0°C to +85°C
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . .+150°C
Storage Temperature Range . . . . . . . . . . . . .-65°C to +150°C
Output Current. . . . . . . . . . . . . . . . . . . . . . . . .. . . . 100mAPK-PK
Power Dissipation (max) . . . . . . . . . . . . . . . . . .. . . . See CurvesDescriptionThe EL6206 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 pick-ups.
One external resistor sets the oscillator frequency. Another external resistor sets the oscillator amplitude. If the EL6206 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 EL6206 current drawn by the oscillator consists of a small bias 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.
This part EL6206 is pin-compatible to the EL6201. It is superior to the EL6201 in several ways: It has up to 100mA output capability, it is faster (up to 600MHz), it is more power-efficient, it has less harmonic content, and it has an auto shut-off feature activated at 1.1V.
The part EL6206 is available in the space-saving 5-pin SOT23 package. It is specified for operation from 0°C to +85°C.
EL6206 Data Sheet
