Datasheet > ATR1842

ATR1842

更新时间： 2022-12-19 08:36:23

品牌	Logo	应用领域
爱特美尔 - ATMEL		二极管监控 DVD
页数	文件大小	规格书
8页	150K
描述
Front Monitor Diode for Blu-ray/HD-DVD/ DVD/CD with Serial Interface

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ATR1842 数据手册

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 Serial Interface

• Paraphase Outputs

• Internal Reference Voltage Generation

• Fast Settling Time

• Low Offset Voltage

• Power-down Mode

Front Monitor

Diode for

Blu-ray/HD-DVD/

DVD/CD with

Serial Interface

• 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 ATR1842 is a front monitor diode (FMD) which controls the laser power of the

ATR1842

optical pickup for Blu-ray/HD-DVD, DVD and CD drives in one IC.

With the serial programming interface (SPI) it is possible to fit the laser power for

Blu-ray/HD-DVD, DVD and CD. 2 bits are used to set the mode/gain level and 6 addi-

tional bits are used for gain trimming, within ±6 dB. Also setting into sleep mode can

be done via the serial programmin interface (SPI).

Summary

Preliminary

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 ATR1842 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 information, please

contact your local Atmel sales office.

9109AS–DVD–08/07

12 3 4 5 6 7 8

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