T0816-PEQG

T0816-PEQG Datasheet

T0816

Part	Datasheet
T0816-PEQG	T0816-PEQG (pdf)

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• Current-controlled Output Current Source, 3 Input Channels • Low-power Consumption • Output Current per Channel to 250 mA • Total Output Current to 300 mA • Rise Time ns, Fall Time ns • On-chip RF Oscillator • Control of Frequency and Swing by Use of 2 External Resistors • Oscillator Frequency Range from 200 MHz to 500 MHz • Oscillator Swing to 100 mA • Single 5V Power Supply • Common Enable, Disable Input • TTL/CMOS Control Signals • Small SSO16 Package and QFN16 Package • CD-RW Drives • Writable Optical Drives 3-channel Laser Driver with RF Oscillator T0816 The T0816 is a laser diode driver for the operation of a grounded laser diode for CD-RW 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 at the IOUT pin. Each channel can contribute up to 250 mA to the total output current of up to 300 mA. A total gain of 100 read channel , 250 channel 2 and 150 channel 3 are provided between each reference current input and the 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. Frequency and swing can be set by two external resistors. Oscillation is enabled by a ‘high’ at the ENOSC pin. Complete output current and oscillator switchoff is achieved by a ‘low’ at the ENABLE input. Figure Block Diagram I3 NE3 I2 NE2 IR NER ENABLE ENOSC Channel 3 Channel 2 Read channel RF oscillator IOUT 2 T0816 Pin Configuration Figure Pinning SSO16 IR 1 I2 2 GND 3 RF 4 I3 5 NER 6 NE2 7 NE3 8 16 VCC1 15 VCC2 14 IOUT 13 GND 12 RS 11 ENABLE 10 ENOSC 9 VCC2 Table Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Description SSOP16 Type Function Analog Input current, bias voltage approximately GND Analog Input current, bias voltage approximately GND Supply Ground Analog External resistor to GND sets oscillator frequency Analog Input current, bias voltage approximately GND Digital control of read channel low active Digital control of channel 2 low active Digital control of channel 3 low active VCC2 Supply +5V power supply for IOUT ENOSC Digital Enables RF oscillator high active ENABLE Digital Enables output current high active Analog External resistor to GND sets oscillator swing Ordering Information Extended Type Number T0816-TCQ T0816M-TCQG T0816-PEQG Package SSO16 Pb-free SSO16 Pb-free QFN16 Package Information Remarks Taped and reeled Taped and reeled Taped and reeled T0816 14 T0816 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
• Low-power Consumption
• Output Current per Channel to 250 mA
• Total Output Current to 300 mA
• Rise Time ns, Fall Time ns
• On-chip RF Oscillator
• Control of Frequency and Swing by Use of 2 External Resistors
• Oscillator Frequency Range from 200 MHz to 500 MHz
• Oscillator Swing to 100 mA
• Single 5V Power Supply
• Common Enable, Disable Input
• TTL/CMOS Control Signals
• Small SSO16 Package and QFN16 Package
• CD-RW Drives
• Writable Optical Drives
3-channel Laser Driver with RF Oscillator

T0816

The T0816 is a laser diode driver for the operation of a grounded laser diode for CD-RW 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 at the IOUT pin. Each channel can contribute up to 250 mA to the total output current of up to 300 mA. A total gain of 100 read channel , 250 channel 2 and 150 channel 3 are provided between each reference current input and the 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. Frequency and swing can be set by two external resistors. Oscillation is enabled by a ‘high’ at the ENOSC pin. Complete output current and oscillator switchoff is achieved by a ‘low’ at the ENABLE input.

Figure Block Diagram

I3 NE3

I2 NE2

IR NER ENABLE

ENOSC

Channel 3

Channel 2

Read channel

RF oscillator

IOUT
2 T0816

Pin Configuration

Figure Pinning SSO16

IR 1 I2 2 GND 3 RF 4 I3 5 NER 6 NE2 7 NE3 8
16 VCC1 15 VCC2 14 IOUT 13 GND 12 RS 11 ENABLE 10 ENOSC
9 VCC2

Table Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Pin Description SSOP16

Type

Function

Analog Input current, bias voltage approximately GND

Analog Input current, bias voltage approximately GND

Supply Ground

Analog External resistor to GND sets oscillator frequency

Analog Input current, bias voltage approximately GND

Digital control of read channel low active

Digital control of channel 2 low active

Digital control of channel 3 low active

VCC2

Supply +5V power supply for IOUT

ENOSC

Digital Enables RF oscillator high active

ENABLE

Digital Enables output current high active

Analog External resistor to GND sets oscillator swing
Ordering Information

Extended Type Number T0816-TCQ T0816M-TCQG T0816-PEQG

Package SSO16 Pb-free SSO16 Pb-free QFN16

Package Information

Remarks Taped and reeled Taped and reeled Taped and reeled

T0816
14 T0816

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: T0816-PEQG 519386