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Part Number: EL6291C
Description: The EL6291C is a highly integrated laser diode driver designed to sup-port multi-standard writable opt...
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EL6291C
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DataSheet
General Description
EL6291C General Description
The EL6291C is a highly integrated laser diode driver designed to sup-port multi-standard writable optical drives. It accomplishes this by incorporating a waveform generator wherein the diode currents and timing details can be programmed before operation. The data input cir-cuitry inspects the NRZ serial data waveform and generates programmed waveforms in recognition of 3, 4, 5, or 6 or more clock periods of space changing to 3, 4, 5, or 6 or more clock periods of mark, and vice versa.
This programmable architecture allows reprogramming of the timers to support different media, DVD or CD standards, and different speeds. The programming is accomplished through a serial interface port. Two outputs are provided to support dual-laser multi-standard optical heads.
The EL6291C requires 3.3V and 5V supplies, with all the logical interface operating on the 3.3V supply.
The EL6291C is available in 32-pin LPP and 32-pin QFN packages for improved thermal performance and reduced footprint.
EL6291C Features
* Complete programmable laser diode driver
* 250mA maximum output
* 8bit x 8bit multiplying DAC output provides 8bit full scale adjustment and 8bit resolution at any full scale output
* 0.17 nsec timer resolution
* Two laser outputs allows read/write DVD and CD combinations
* Programmable waveform values support 2.6GB DVD-RAM, 4.7GB DVD-RAM, DVD-R, DVD+RW, DVD-RW, CD-RW, and CD-R
* Analog input supports APC
* HFM oscillator programmable to 100mAP-P from 200MHz to 600MHz
* PLL allows reduced-frequency clock on flex cable
* Separate serial input works up to 25Mb/sec
* 250mA maximum output
* 8bit x 8bit multiplying DAC output provides 8bit full scale adjustment and 8bit resolution at any full scale output
* 0.17 nsec timer resolution
* Two laser outputs allows read/write DVD and CD combinations
* Programmable waveform values support 2.6GB DVD-RAM, 4.7GB DVD-RAM, DVD-R, DVD+RW, DVD-RW, CD-RW, and CD-R
* Analog input supports APC
* HFM oscillator programmable to 100mAP-P from 200MHz to 600MHz
* PLL allows reduced-frequency clock on flex cable
* Separate serial input works up to 25Mb/sec
EL6291C Typical Application
* Combination DVD writable and CD writable drives
* DVD camcorders
* DVD video recorders
* DVD camcorders
* DVD video recorders
EL6291C Connection Diagram
EL6291C
PDF/DataSheet Download
- Datasheet: EL6291C
- File Size: 141875 KB
- Manufacturer: ELANTEC [Elantec Semiconductor]
- Click here to Download
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