T0806-PEQG

T0806-PEQG Datasheet

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 channels 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 provided 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.

Part	Datasheet
T0806-PEQG	T0806-PEQG (pdf)

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• 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 ns, Fall Time 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 5V Power Supply • Common Enable/Disable Input • TTL/CMOS Control Signals • Small PB-free QFN16 4 mm x 4 mm or SSO16 Package • DVD-ROM with CD-RW Capability Combo Drives • Combo Drives with CD and DVD Writing Capability 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 channels 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 provided 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. 3-channel Laser Driver with RF Oscillator and 2 Outputs T0806 Note This is a summary document. A complete dorcument is available under NDA. For more information, please contact your local Atmel sales office. Figure Block Diagram I3 I2 NE2 IR ENABLE ENOSC Channel 3 Channel 2 Read channel RF oscillator RF RSA RSB SELA IOUTA IOUTB 2 T0806 Pin Configuration Figure Pinning SSO16 IR 1 I2 2 I3 3 RF 4 NE2 5 NE3 6 ENABLE 7 ENOSC 8 16 VCC1 15 IOUTA 14 GND T0806 13 RSA 12 RSB 11 IOUTB 10 SELA 9 VCC2 T0806 Table Pin 1 2 3 4 5 6 7 8 9 11 12 13 14 15 16 Pin Description SSO16 Type Analog Analog Analog Analog Digital Digital ENABLE Digital ENOSC Ordering Information Extended Type Number T0806-TCQG T0806-PEQG Package SSO16 Pb-free QFN16 4 mm x 4 mm Package Information Remarks Taped and reeled, Pb-free Taped and reeled, Pb-free 6 T0806 T0806 Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 487-2600 Regional Headquarters Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel 41 26-426-5555 Fax 41 26-426-5500 Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel 852 2721-9778 Fax 852 2722-1369 Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel 81 3-3523-3551 Fax 81 3-3523-7581 Atmel Operations Memory 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 436-4314 Microcontrollers 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 436-4314 La Chantrerie BP 70602 44306 Nantes Cedex 3, France Tel 33 2-40-18-18-18 Fax 33 2-40-18-19-60 ASIC/ASSP/Smart Cards Zone Industrielle 13106 Rousset Cedex, France Tel 33 4-42-53-60-00 Fax 33 4-42-53-60-01 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel 1 719 576-3300 Fax 1 719 540-1759 Scottish Enterprise Technology Park Maxwell Building East Kilbride G75 0QR, Scotland Tel 44 1355-803-000 Fax 44 1355-242-743 RF/Automotive Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany Tel 49 71-31-67-0 Fax 49 71-31-67-2340 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel 1 719 576-3300 Fax 1 719 540-1759 Biometrics/Imaging/Hi-Rel MPU/ High Speed Converters/RF Datacom Avenue de Rochepleine BP 123 38521 Saint-Egreve Cedex, France Tel 33 4-76-58-30-00 Fax 33 4-76-58-34-80 Literature Requests Disclaimer The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDITIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, PUNITIVE, SPECIAL OR INCIDENTAL DAMAGES INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS INTERRUPTION, OR LOSS OF INFORMATION ARISING OUT OF THE USE OR INABILITY TO USE THIS DOCUMENT, EVEN IF ATMEL HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Atmel makes no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. Atmel does not make any commitment to update the information contained herein. Unless specifically provided otherwise, 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. Atmel Corporation All rights reserved. logo and combinations thereof, Everywhere You and others, are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. Printed on recycled paper.

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• 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 ns, Fall Time 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 5V Power Supply
• Common Enable/Disable Input
• TTL/CMOS Control Signals
• Small PB-free QFN16 4 mm x 4 mm or SSO16 Package
• DVD-ROM with CD-RW Capability Combo Drives
• Combo Drives with CD and DVD Writing Capability

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 channels 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 provided 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.
3-channel Laser Driver with RF Oscillator and 2 Outputs

T0806

Note This is a summary document. A complete dorcument is available under NDA. For more information, please contact your local Atmel sales office.

Figure Block Diagram I3

I2 NE2

IR ENABLE

ENOSC

Channel 3 Channel 2 Read channel RF oscillator

RF RSA RSB

SELA

IOUTA IOUTB
2 T0806

Pin Configuration

Figure Pinning SSO16 IR 1 I2 2 I3 3

RF 4 NE2 5 NE3 6 ENABLE 7 ENOSC 8
16 VCC1
15 IOUTA
14 GND

T0806
13 RSA 12 RSB
11 IOUTB
10 SELA
9 VCC2

T0806

Table Pin 1 2 3 4 5 6 7 8 9
11 12 13 14 15 16

Pin Description SSO16

Type

Analog

Analog

Analog

Analog

Digital

Digital

ENABLE

Digital

ENOSC
Ordering Information

Extended Type Number T0806-TCQG T0806-PEQG

Package SSO16 Pb-free QFN16 4 mm x 4 mm

Package Information

Remarks Taped and reeled, Pb-free Taped and reeled, Pb-free
6 T0806

T0806

Atmel Corporation
2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 487-2600

Regional Headquarters

Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel 41 26-426-5555 Fax 41 26-426-5500

Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel 852 2721-9778 Fax 852 2722-1369

Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel 81 3-3523-3551 Fax 81 3-3523-7581

Atmel Operations

Memory 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 436-4314

Microcontrollers 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 436-4314

La Chantrerie BP 70602 44306 Nantes Cedex 3, France Tel 33 2-40-18-18-18 Fax 33 2-40-18-19-60

ASIC/ASSP/Smart Cards Zone Industrielle 13106 Rousset Cedex, France Tel 33 4-42-53-60-00 Fax 33 4-42-53-60-01
1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel 1 719 576-3300 Fax 1 719 540-1759

Scottish Enterprise Technology Park Maxwell Building East Kilbride G75 0QR, Scotland Tel 44 1355-803-000 Fax 44 1355-242-743

RF/Automotive Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany Tel 49 71-31-67-0 Fax 49 71-31-67-2340 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel 1 719 576-3300 Fax 1 719 540-1759

Biometrics/Imaging/Hi-Rel MPU/ High Speed Converters/RF Datacom

Avenue de Rochepleine BP 123 38521 Saint-Egreve Cedex, France Tel 33 4-76-58-30-00 Fax 33 4-76-58-34-80

Literature Requests

Disclaimer The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDITIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, PUNITIVE, SPECIAL OR INCIDENTAL DAMAGES INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS INTERRUPTION, OR LOSS OF INFORMATION ARISING OUT OF THE USE OR INABILITY TO USE THIS DOCUMENT, EVEN IF ATMEL HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Atmel makes no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. Atmel does not make any commitment to update the information contained herein. Unless specifically provided otherwise, 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.

Atmel Corporation All rights reserved. logo and combinations thereof, Everywhere You and others, are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others.

Printed on recycled paper.

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Datasheet ID: T0806-PEQG 519385