EL6835 To request the full datasheet, please visit www.intersil.com/products/EL6835 Data Sheet April 6, 2006 FN7231.1 Dual 4-Channel DVD, 3-Channel CD Driver with Oscillator & LVDS Features The EL6835 is a high performance, dual output, laser driver for writeable ‘super-combo’ CD - DVD drives. The ENA pin enables the chip, while the SEL1 pin selects the IOUT pin. Various waveforms can be generated where the amplitude is determined by the currents flowing into IINR, IIN2, IIN3, and IIN4. The timing is determined by the signals at WEN2WEN2B, WEN3-WEN3B, and WEN4-WEN4B. The oscillator is enabled when OSCEN is high. The amplified IINR current of the selected channel is enabled when the ENA pin is high. The total output current is the sum of the read current, the enabled write currents, and the oscillator current when enabled. • Voltage-controlled output current source requiring one external set resistor per channel Usually a voltage DAC will drive a resistor that is in series with the IINR, IIN2, IIN3 and IIN4 input. The resistor allows the user to optimize the current gain for each channel. Output write current pulses are enabled when a high is applied to the WEN2-WEN2B, WEN3-WEN3B, or WENWEN4B pin. The write current will flow to the selected output. When SEL1 is high IOUT1 is selected. WENRB enables read and oscillator current when low. • Rise time = 0.8ns • Fall time = 0.8ns • DVD - Channel 2 to 275mA max • DVD - Channel 3 to 195mA max • DVD - Channel 4 to 115mA max • CD - Channel 2 to 405mA max • CD - Channel 3 to 290mA max • On-chip oscillator with frequency and amplitude control by use of external resistors to ground • Oscillator frequency to 600MHz • Oscillator amplitude to 100mAP-P • Single +5V supply (±10%) • Chip ENAs for power savings • External LVDS termination • Pb-Free plus anneal available (RoHS compliant) The RF oscillators frequency is determined by RFREQ1 or RFREQ2, and its amplitude by RAMP1 or RAMP2. Applications • Super combo drives Ordering Information PART MARKING PACKAGE (Pb-Free) TAPE & REEL PKG. DWG. # EL6835CLZ 6835CLZ 32-Pin QFN - MDP0046 EL6835CLZ-T13 6835CLZ 32-Pin QFN 13” MDP0046 EL6835CLUZ 32-Pin TEP-QFN - XX EL6835CLUZ-T13 32-Pin TEP-QFN 13” XX PART NUMBER (See Note) • Two channels for CD or DVD NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2003, 2005, 2006. All Rights Reserved All other trademarks mentioned are the property of their respective owners. EL6835 All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9001 quality systems. Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 2 FN7231.1 April 6, 2006