ATR1841

Features 405 nm, 650 nm and 780 nm Wavelengths Supported Blu-ray/HD-DVD x5, CD-R/RW x52, DVD-R/RW x16 Adjustment of Mode and Gain by Setting Internal Register via Two-wire Interface (TWI) 200 MHz Channel Bandwidth Paraphase Outputs Internal Reference Voltage Generation Fast Settling Time Low Offset Voltage Power-down Mode Pb-free Optical 12-pin Package Applications Blu-ray/HD-DVD DVD+RW with CD-RW Capability DVD-RW with CD-RW Capability DVD-RAM with CD-RW Capability Recordable Optical Data Storage Devices Front Monitor Diode for Blu-ray/HD-DVD/ DVD/CD with TWI ATR1841 Summary Preliminary 1. Description The ATR1841 is a front monitor diode (FMD) which controls the laser power of the optical pickup for Blu-ray/HD-DVD, DVD and CD drives in one IC. With the Two-wire Interface (TWI) it is possible to fit the laser power for Blu-ray/HD-DVD, DVD and CD. Two bits are used to set the mode/gain level and 6 additional bits are used for gain trimming, within ±6 dB. Entering sleep mode is also controlled via the TWI. http://www.DataSheet4U.com/ The integrated PIN diode and the high speed amplifier with low output impedance ensures stable driver performance. All output channels are set to tri-state during sleep mode. Due to its small package size the ATR1841 is especially suited for applications with low height requirements like SLIM and Ultra-SLIM drives. NOTE: This is a summary document. The complete document is currently not available. For more informa...