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ATR1841 fiches techniques PDF

ATMEL Corporation - Front Monitor Diode

Numéro de référence ATR1841
Description Front Monitor Diode
Fabricant ATMEL Corporation 
Logo ATMEL Corporation 





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ATR1841 fiche technique
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
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
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additional bits are used for gain trimming, within ±6 dB. Entering sleep mode is also
controlled via the TWI.
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.
Front Monitor
Diode for
Blu-ray/HD-DVD/
DVD/CD with
TWI
ATR1841
Summary
Preliminary
NOTE: This is a summary document.
The complete document is currently not
available. For more information, please
contact your local Atmel sales office.
9103AS–DVD–08/07

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ATR1841 Front Monitor Diode ATMEL Corporation
ATMEL Corporation
ATR1842 Front Monitor Diode ATMEL Corporation
ATMEL Corporation

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