atr0874

Manufacturer Part Numberatr0874
DescriptionAtr0874 10-channel High Speed Photo Detector Ic For Dvd/cd
ManufacturerATMEL Corporation
atr0874 datasheet
 
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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.
10-channel High
Speed Photo
Detector IC for
DVD/CD
ATR0874
Summary
Preliminary
4972AS–DVD–04/07

atr0874 Summary of contents

  • Page 1

    ... 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. 10-channel High ...

  • Page 2

    ... Figure 1-1. Block Diagram VREF SW1 Gain Switch SW2 - F2H2 + - F1H1 + - E2G2 + - E1G1 + GND ATR0874 [Preliminary VCC 0.5* RF+ + 0. GND 4972AS–DVD–04/07 ...

  • Page 3

    ... Reference voltage Ground Output channel F2H2 Output channel F1H1 Output channel E1G1 Output channel E2G2 Gain switch Gain switch Output RF- Output RF+ Output channel A Output channel D Output channel C Output channel B Ground Supply voltage ATR0874 [Preliminary] 16 VCC 15 GND RF+ 9 ...

  • Page 4

    ... Supply voltage Input voltage at any input Storage temperature Soldering temperature COB package Soldering temperature QFN_Open package 4. Recommended Operating Conditions Parameters Supply voltage Reference voltage Operating temperature range ATR0874 [Preliminary] 4 Symbol Value VCC –0.5 to +6.0 Vin –0.5 to VCC – 0.5 Tstg –40 to +100 Tsol ...

  • Page 5

    ... Photo Diode Arrangement Figure 5-1. Phote Diode Arrangement Photo diode is symmetrically centered to the center of the chip and package Symmetrical axis is parallel to the package 4972AS–DVD–04/07 ATR0874 [Preliminary ...

  • Page 6

    ... Ordering Information Extended Type Number ATR0874-PZQW 7. Package Information Package: QFN_OPEN_4x3.5_16L Dimensions Corner Top View Drawing-No.: 6.543-5116.01-4 Issue: 1; 02.03.05 ATR0874 [Preliminary] 6 Package QFN_OPEN_4x3.5_16L 0 (Pd Center to Pkg Center) ±0.0508 Side View 16 9 0.25 0.9 ±0.1 Remarks Taped and reeled, Pb-free technical drawings according to DIN ...

  • Page 7

    ... Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’s products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life. © 2007 Atmel Corporation. All rights reserved. Atmel marks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. Atmel Operations Memory ...