Low Power 430 MHz HFM Oscillator w/Disable Features General Description • Small SOT-23 and MSOP-8 packages • 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 EL6201C is a solid state high performance laser modulation oscillator 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. Applications • • • • • • • • • DVD players DVD-ROM drives DVD-RAM drives CD-RW drives MO drives Optical pickup head assembly Laser diode modulation Local oscillator Communications lasers EL6201C - Product Brief EL6201C - Product Brief The oscillator frequency is set by connecting a single external resistor from the RFREQ pin to ground. The oscillator current output amplitude 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 modulation 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. The EL6201C has internal supply bypass capacitors to reduce oscillation noise spread through supply connections. Connection Diagram 1 VS RFREQ 7 2 GND RAMP 6 Ordering Information 3 IOUT Part No Temp. Range Package Outline # EL6201CY 0°C to +75°C 8-Pin MSOP MDP0043 EL6201CW 0°C to +75°C 5-Pin SOT23 MDP0038 5-Pin SOT23 1 CE VS 8 2 GND IOUT 7 3 RFREQ GND 6 4 RAMP OE 5 8-Pin MSOP July 12, 2000 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. EL6201C - Product Brief EL6201C - Product Brief Low Power 430 MHz HFM Oscillator w/Disable General Disclaimer Specifications contained in this data sheet are in effect as of the publication date shown. Elantec, Inc. reserves the right to make changes in the circuitry or specifications contained herein at any time without notice. Elantec, Inc. assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement. WARNING - Life Support Policy Elantec, Inc. products are not authorized for and should not be used within Life Support Systems without the specific written consent of Elantec, Inc. Life Support systems are equipment intended to support or sustain life and whose failure to perform when properly used in accordance with instructions provided can be reasonably expected to result in significant personal injury or death. Users contemplating application of Elantec, Inc. Products in Life Support Systems are requested to contact Elantec, Inc. factory headquarters to establish suitable terms & conditions for these applications. Elantec, Inc.’s warranty is limited to replacement of defective components and does not cover injury to persons or property or other consequential damages. July 12, 2000 Elantec Semiconductor, Inc. 675 Trade Zone Blvd. Milpitas, CA 95035 Telephone: (408) 945-1323 (888) ELANTEC Fax: (408) 945-9305 European Office: +44-118-977-6020 Japan Technical Center: +81-45-682-5820 2 Printed in U.S.A.