Rainbow-electronics ATR1841 Bedienungsanleitung PDF herunterladen

NOTE: This is a summary document.

The complete document is currently not

available. For more information, please

contact your local Atmel sales office.

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

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

9103AS–DVD–08/07

1 2 3 4 5 6 7 8

Inhaltsverzeichnis

Seite 1 - 1. Description

NOTE: This is a summary document. The complete document is currently not available. For more information, please contact your local Atmel sales office

Seite 2 - ATR1841 [Preliminary]

29103AS–DVD–08/07ATR1841 [Preliminary] Figure 1-1. Block Diagram Gain Select (H/M/L) Gain Adjust (±6 dB)SDASCLInternal VrefRF+RF-GNDVCCADS

Seite 3

39103AS–DVD–08/07ATR1841 [Preliminary]2. Pin ConfigurationFigure 2-1. Pinning QFN12L 12348765GNDRF-RF+VCCGNDADSSCLSDANC NC912NC NC10 11Table 2-1. Pin

Seite 4

49103AS–DVD–08/07ATR1841 [Preliminary] 3. Absolute Maximum RatingsStresses beyond those listed under “Absolute Maximum Ratings” may cause permanent da

Seite 5

59103AS–DVD–08/07ATR1841 [Preliminary]6. Two-wire Interface (TWI)6.1 Slave Address6.2 Data6.3 Mode SettingThe first two bits select the mode/gain leve

Seite 6

69103AS–DVD–08/07ATR1841 [Preliminary] 7. Applications RecommendationTo achieve the best performance VCC needs to be blocked using a high quality capa

Seite 7

79103AS–DVD–08/07ATR1841 [Preliminary]10. Package Information 9. Ordering InformationExtended Type Number Package RemarksATR1841-P1QN QFN_OPEN_3x3_8L

Seite 8 - Product Contact

9103AS–DVD–08/07Headquarters InternationalAtmel Corporation2325 Orchard ParkwaySan Jose, CA 95131USATel: 1(408) 441-0311Fax: 1(408) 487-2600Atmel Asia

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Rainbow-electronics ATR1841 Bedienungsanleitung

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