Moteur de recherche de fiches techniques de composants électroniques
  French  ▼

Delete All
ON OFF
ALLDATASHEET.FR

X  

Preview PDF Download HTML

T0806 Fiches technique(PDF) 1 Page - ATMEL Corporation

No de pièce T0806
Description  3 CHANNEL LASER DRIVER WITH RF OSCILLATOR AND 2 OUTPUTS
Download  7 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  ATMEL [ATMEL Corporation]
Site Internet  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

T0806 Fiches technique(HTML) 1 Page - ATMEL Corporation

  T0806 Datasheet HTML 1Page - ATMEL Corporation T0806 Datasheet HTML 2Page - ATMEL Corporation T0806 Datasheet HTML 3Page - ATMEL Corporation T0806 Datasheet HTML 4Page - ATMEL Corporation T0806 Datasheet HTML 5Page - ATMEL Corporation T0806 Datasheet HTML 6Page - ATMEL Corporation T0806 Datasheet HTML 7Page - ATMEL Corporation  
Zoom Inzoom in Zoom Outzoom out
 1 / 7 page
background image
Rev. 4522ES–DVD–01/04
Features
Current-controlled Output Current Source, 3 Input Channels
Two Selectable Outputs for Grounded Laser Diodes
Output Current per Channel up to 250 mA
Total Output Current to 300 mA (Minimum)
Rise Time 1.0 ns, Fall Time 1.1 ns
On-chip RF Oscillator
Control of 2 Different Swings by Use of 2 external Resistors
Oscillator Frequency Range from 200 MHz to 600 MHz
Oscillator Swing to 100 mA
Single 5 V Power Supply
Common Enable/Disable Input
TTL/CMOS Control Signals
Small PB-free QFN16 (4 mm
× 4 mm) or SSO16 Package
Applications
DVD-ROM with CD-RW Capability (Combo Drives)
Combo Drives with CD and DVD Writing Capability
Description
The T0806 is a laser diode driver for the operation of two different grounded laser
diodes for DVD-RAM (650 nm) and CD-RW (780 nm) drives. It includes three chan-
nels for three different optical power levels which are controlled by a separate IC. The
read channel generates a continuous output level whereas channels 2 and 3 are pro-
vided as write channels with very fast switching speeds. Write current pulses are
enabled when a low signal is applied to the NE pins. All channels are summed
together and switched to one of the two outputs IOUTA or IOUTB by the select input
SELA. Each channel can contribute up to 250 mA to the total output current of up to
300 mA. A total gain of 100 is provided between each reference current input and the
selected output. Although the reference inputs are current inputs, voltage control is
possible by using external resistors.
An on-chip RF oscillator is provided to reduce laser mode hopping noise during read
mode. Swing can be set independently for the two selectable outputs with two different
resistors. Oscillation is enabled by a high signal at the ENOSC pin. Complete output
current and oscillator switch-off is achieved by a low signal at the ENABLE input.
Figure 1. Block Diagram
Channel 2
I3
NE3
I2
NE2
Read channel
RF oscillator
IR
ENOSC
ENABLE
RSA
IOUTA
IOUTB
RF
RSB
SELA
Channel 3
3-Channel Laser
Driver with
RF Oscillator
and 2 Outputs
T0806
Summary


Html Pages

1  2  3  4  5  6  7 


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn