|
|
PDF ATR1842 Data sheet ( Hoja de datos )
| Número de pieza | ATR1842 | |
| Descripción | Front Monitor Diode | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ATR1842 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
|
No Preview Available !
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
• 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
Serial Interface
1. Description
The ATR1842 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 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).
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 ATR1842 is especially suited for applications with
low height requirements like SLIM and Ultra-SLIM drives.
ATR1842
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.
9109AS–DVD–08/07
1 page  
ATR1842 [Preliminary]
6. Serial Programming Interface
6.1 Data
MSB2
LSB2
m1 m2 g1 g2 g3 g4 g5 g6
6.2 Mode Setting
The first two bits select the mode/gain level.
Table 6-1.
m1
1
1
0
0
Mode Selection Register
m2
1
0
1
0
Mode Select
High Gain
Middle Gain
Low Gain
Sleep
6.3
Gain Setting
The last six bits are used to finely adjust the gain by ±6 dB.
http://www.DataSheet4U.com/
Table 6-2. Gain Selection Register
g1 g2 g3 g4 g5 g6
111111
…
100000
…
000000
Gain
+6 dB
…
0 dB
…
–6 dB
9109AS–DVD–08/07
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet ATR1842.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ATR1841 | Front Monitor Diode | ATMEL Corporation |
| ATR1842 | Front Monitor Diode | ATMEL Corporation |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |