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PDF ATR0874 Data sheet ( Hoja de datos )
| Número de pieza | ATR0874 | |
| Descripción | 10-channel High Speed Photo Detector IC for DVD/CD | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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Features
• 650 nm and 780 nm Wavelengths Supported
• 150 MHz Data Channel Bandwidth
• Fast Settling Time
• 4 Configurable Gain Steps
• 12 Photo Diodes
• Low Offset Voltage
• Power-down Mode
• Pb-free Optical 16-pin Package
Applications
• DVD +RW with CD-RW Capability
• DVD -RW with CD-RW Capability
• DVD-RAM with CD-RW Capability
• DVD 18x Application
• Recordable Optical Data Storage Devices
1. Description
The ATR0874 is a Photo Detector Integrated Circuit (PDIC) for operation in high
speed DVD applications like DVD-RAM and DVD+/-RW at a wavelength of 650 nm
and CD-RW at a wavelength of 780 nm. It includes 10 channels with 4 different gain
steps. The four channels A, B, C, D are high speed channels whereas the channels
E1G1, E2G2, F1H1, F2H2 are high gain channels at average speed for tracking con-
trol, sector information etc.. The remaining two channels RF+ and RF- are RF
paraphase outputs. Channels A to D are summed together at the RF outputs.
Setting of the gain and entering/exiting sleep mode is controlled using the two tri-state
inputs SW1 and SW2.
All channels are set to tri-state during sleep mode.
Due to its small package size the ATR0874 is especially suited for application with low
height requirements like SLIM and UltraSLIM drives.
www.DataSheet4U.com
10-channel High
Speed Photo
Detector IC for
DVD/CD
ATR0874
Summary
Preliminary
4972AS–DVD–04/07
1 page  
5. Photo Diode Arrangement
Figure 5-1. Phote Diode Arrangement
ATR0874 [Preliminary]
www.DataSheet4U.com
f
b
H1
H2
c
f
Photo diode is symmetrically centered
to the center of the chip and package
Symmetrical axis is parallel to the package
a
G1
e
d
B
d
G2
C
f
AD
f
a
e
F1 F2
c
f
E1
b
f
E2
4972AS–DVD–04/07
5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet ATR0874.PDF ] | |
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