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Part: EL6231CL
Category:
Description: Laser Diode Driver, 4-Channels, Read + 3 Write And IV, Dual Amp And Dual Freq RF Osc Sums on Output During Read
Company: Intersil Corporation
Datasheet: Download EL6231CL datasheet File size : 427 kB
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Datasheet text preview:
EL6231C
EL6231C
®
4-Channel Laser Driver with APC Amp
PRODUCT BRIEF
®
Features
· Read + 3 write channel laser driver with oscillator & fast I/V amplifier · Write rise/fall times = 0.9ns · 200V/µ s, fast-settling I/V amplifier · 100X gain, 100mA low noise read channel · 250X gain, 250mA write channel · Two 100X gain, 100mA write channels · 600MHz, 100mAP-P oscillator with dual frequency and amplitude control · 3.3V compatible logic signals · Single +5V supply
General Description
The EL6231C is a combination read + 3 write level laser driver with IV amplifier. A dual amplitude, dual frequency RF oscillator sums on the output for laser noise reduction during read or write. All these functions are provided in 24-lead QSOP and LPP packages. The ENABLE pin enables the read & write channels. Positive current supplied to the IIN lines, through user selected resistors, allow the full scale range of each amplifier to be matched to the full scale range of the users control DACs. When the WEN pins are switched low, the respective current is summed to the output with 1ns rise and fall times. The 100mAP-P (max) oscillator is switched on and off by the OSCEN line. The R/W line allows the oscillator to operate at one amplitude an d frequency when R/W is high, and another amplitude and frequency when R/W is low. The entire chip is powered down when ENABLE is low. The user can c a l ib r a te the gain of the I/V amplifier. With a slew rate around 200V/µ s, the I/V amplifier can normally settle to less than 1% within 30ns.
Applications
· CD-RW to 20X · CD-R to 48X · Writable optical disk drives
Connection Diagrams
1 VOUT
Outline # MDP0040 MDP0046
Ordering Information
Part No. EL6231CU EL6231CL Temp. Range 0°C to +70°C 0°C to +70°C Package 24-Pin QSOP 24-Pin LPP
PDIN 24 22 VOUT 23 VREF 21 PDIN 24 IINR VCC 23 VCC 22 IIN 2 1 IOUT 21 RF1 2 18 IOUT 17 GND Thermal Pad 16 GND 15 RAMP1 14 RAMP2 13 ENABLE WEN2 10 VCC 11 OSCEN 12 WEN4 8 WEN3 9 GND 20 GND 19 RAMP1 18 RAMP2 17 ENABLE 16 OSCEN 15 VCC 14 WEN2 13 IIN 3 3 IIN 4 4 RF2 5 RWB 6 GND 7 20 VCC 19 VCC
2 VREF 3 IIN R 4 IIN 2 5 RFREQ1 6 IIN 3 7 IIN 4 8 RFREQ2 9 RWB 10 GND 11 WEN4 12 WEN3
August 28, 2002
EL6231CU (24-Pin QSOP)
EL6231CL (24-Pin LPP Top View)
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-ELANTEC or 408-945-1323 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Elantec ® is a registered trademark of Elantec Semiconductor, Inc. Copyright © Intersil Americas Inc. 2002. All Rights Reserved
EL6231C
EL6231C
4-Channel Laser Driver with APC Amp
PRODUCT BRIEF
Effective May 15, 2002, Elantec, a leader in high performance analog products, is now a part of Intersil Corporation. All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation's quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
®
August 28, 2002
Sales Office Headquarters
NORTH AMERICA Intersil Corporation 7585 Irvine Center Drive Suite 100 Irvine, CA 92618 TEL: 949-341-7000 FAX: 949-341-7123 Elantec 675 Trade Zone Blvd. Milpitas, CA 95035 TEL: 408-945-1323 800: 888-ELANTEC FAX: 408-945-9305 EUROPE Intersil Europe Sarl Avenue William Fraisse 3 1006 Lausanne Switzerland TEL: +41-21-6140560 FAX: +41-21-6140579 ASIA Intersil Corporation Unit 1804 18/F Guangdong Water Bldg. 83 Austin Road TST, Kowloon Hong Kong TEL: +852-2723-6339 FAX: +852-2730-1433
Printed in U.S.A.
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