ATR0881-PTQW ATMEL [ATMEL Corporation], ATR0881-PTQW Datasheet

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ATR0881-PTQW

Manufacturer Part Number
ATR0881-PTQW
Description
3-output Laser Driver with 5 Channels and Serial Interface
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
Features
Applications
Benefits
Two High-side Outputs for Grounded Red Laser Diodes
Total Output Current up to 700 mA at VLD = 3.8V
One Low-side Output for Floating Blue Laser Diode
Total Output Current up to 550 mA, External LD Supply Voltage
Five Channels with Gain DACs
Two Current Inputs for Read and Write Channels
Channel 2 Current Contribution up to 350 mA
LVDS-compatible Enable Inputs at Channels 2, 3, 4 and HFM
Optional SyncDrive Technology for Increased Timing Accuracy
Common Enable Input for All Channels
Low-EMI High-Frequency Modulator (HFM) with Wiper
Serial Interface (SPI and TWI) with Write and Read Operation
Small, Pb-free, 24-pin, Paddle-up Package 4 mm
Blu-ray/DVD/CD Recordable Drives
Blu-ray Combo Drives
The Serial Interface Yields the Following Benefits:
– Frequency Range 200 MHz to 500 MHz
– Swing up to 100 mApp
– Erase Modulation Supported
– LD Output
– Channel Gains and Input Current Source
– Overcurrent Protection
– HFM Frequency and Swing
– HFM Frequency Measurement
– LVDS/Single Ended Input Configurations
– SyncDrive Mode
– Temperature Monitor
– Blue LD Voltage Monitor
– Low Pin Count and Small Package
– Flexible Channel Configurations
– Digital Gain Control
– High Accuracy of HFM Frequency
4 mm
3-output Laser
Driver with 5
Channels and
Serial Interface
ATR0881
Preliminary
Summary
NOTE: This is a summary document.
The complete document is available.
For more information, please contact
your local Atmel sales office.
9105BS–DVD–03/08

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ATR0881-PTQW Summary of contents

Page 1

... Digital Gain Control – High Accuracy of HFM Frequency 4 mm 3-output Laser Driver with 5 Channels and Serial Interface ATR0881 Preliminary Summary NOTE: This is a summary document. The complete document is available. For more information, please contact your local Atmel sales office. 9105BS–DVD–03/08 ...

Page 2

... Description The ATR0881 is a laser diode driver designed to operate two grounded red laser diodes for CD and DVD and one floating blue laser diode for Blu-ray. The floating blue laser diode needs an extra supply voltage V flexible and configurable for a wide range of applications. Five channels can be assigned to one of the two reference current inputs IR and IW ...

Page 3

... Laser diode anode connection GND for output IOUTC Laser diode cathode connection Reference current input for HFM and overcurrent detector Power supply Serial enable Serial data input and output Serial clock Paddle – at least one corner has to be connected to GND ATR0881 [Preliminary] 3 ...

Page 4

... Junction-ambient Note: Package thermal resistance is measured on the ATR0881 demo board without heat spreader. Users should ensure that the junction temperature never exceeds 150°C. Thermal resistance from junction to case and to ambient depends very much on the PCB layout and on heat spreading measures. ...

Page 5

... Ordering Information Extended Type Number ATR0881-PTQW 7. Package Information Package: QFN_PUP_4 x 4_24L Exposed pad 2.2 x 2.2 Dimensions in mm Not indicated tolerances ±0.05 Drawing-No.: 6.543-5106.01-4 Issue: 1; 18.03.04 8. Revision History Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. ...

Page 6

Headquarters Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to ...

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