EL6201C - Product Brief
Low Power 430 MHz HFM Oscillator w/Disable
Features
General Description
• Small SOT-23 and MSOP-8
packages
The EL6201C is a solid state high performance laser modulation oscil-
lator with external resistor adjustable frequency and amplitude. The
EL6201C is available in both the 8-pin MSOP and the 5-pin SOT23, to
enable device placement close to the laser for reduced EMI.
• Frequency to 430MHz min.
• Amplitude to 25mAP-P min.
• Output tristate function (MSOP-8)
• Power-down function (MSOP-8)
• Single +3.5V to +5.0V supply
• Simple to use - only two external
resistors required
• Independent resistor setting for
frequency and amplitude.
The oscillator frequency is set by connecting a single external resistor
from the RFREQ pin to ground. The oscillator current output ampli-
tude is set by connecting a single external resistor from the RAMP pin
to ground. The oscillator in the MSOP package also contains a high
speed output disable function using the OE pin. The OE pin can be
driven by a high speed timing signal to control precise laser modula-
tion during read/write operations. The output current is disabled when
a logical zero ‘L’ is driven to the CE pin. Supply current is reduced to
microamps when CE = LOW.
Applications
• DVD players
The EL6201C has internal supply bypass capacitors to reduce oscilla-
tion noise spread through supply connections.
• DVD-ROM drives
• DVD-RAM drives
• CD-RW drives
• MO drives
Connection Diagram
• Optical pickup head assembly
• Laser diode modulation
• Local oscillator
1
2
3
VS
RFREQ
RAMP
7
6
• Communications lasers
GND
IOUT
Ordering Information
Part No
EL6201CY
EL6201CW
Temp. Range
0°C to +75°C
0°C to +75°C
Package
Outline #
MDP0043
MDP0038
5-Pin SOT23
8-Pin MSOP
5-Pin SOT23
1
2
3
4
CE
VS
IOUT
GND
OE
8
7
6
5
GND
RFREQ
RAMP
8-Pin MSOP
Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a “controlled document”. Current revisions, if any, to these
specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.
© 2001 Elantec Semiconductor, Inc.
ELANTEC [ ELANTEC SEMICONDUCTOR ]
