Datasheet > EL6939CLZ

EL6939CLZ

更新时间： 2024-11-13 06:11:31

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EL6939CLZ

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EL6939CLZ 数据手册

EL6939

Data Sheet

March 9, 2005

FN7469.0

Laser Diode Driver with Waveform

Generator

Features

• Complete programmable laser diode driver

• 600mA maximum total output

The EL6939 is a highly integrated laser diode driver

designed to support multi-standard writable optical drives. It

accomplishes this by incorporating a waveform generator

wherein the diode currents and timing details can be

programmed before operation. The data input circuitry

inspects the NRZ serial data waveform and generates

programmed waveforms in recognition of 3, 4, 5, or 6 or

more clock periods of space changing to 3, 4, 5, or 6 or more

clock periods of mark, and vice versa.

• 10-bit x 10-bit multiplying DAC output provides 10-bit full

scale adjustment and 10-bit resolution at any full scale

output

• 54 psec timer resolution

• Two laser outputs allows read/write DVD and CD

combinations

• Programmable waveform values support CD-R, CD-RW,

DVD-RAM, DVD-R, DVD-RW, DVD+R, DVD+RW, and

Blue

The architecture allows reprogramming of the timers to

support different media, Blue, DVD, or CD standards, and

different speeds. The programming is accomplished through

a serial interface port. Two outputs are provided to support

dual-laser multi-standard optical heads. The clock and NRZ

inputs can be either standard CMOS or LVDS, selectable

through a program bit.

• Two analog inputs support slope and read APC

• HFM oscillator programmable to 100mA

to 500MHz

from 100MHz

P-P

• PLL allows reduced-frequency clock on flex cable

• Separate serial input works up to 100MHz

• Programmable HFM offset when HFM is off

• Pb-free available (RoHS compliant)

The EL6939 requires 2.5V and 5V supplies, with all the

logical interface operating on the 2.5V supply.

Ordering Information

TAPE &

REEL

Applications

PART NUMBER

EL6939CL

PACKAGE

32-Pin QFN

PKG. DWG. #

MDP0046

• Combination DVD writable and CD writable drives

• DVD camcorders

7”

13”

EL6939CL-T7

EL6939CL-T13

• DVD video recorders

EL6939CLZ

(Note)

32-Pin QFN

(Pb-Free)

EL6939CLZ-T7

(Note)

32-Pin QFN

(Pb-Free)

7”

MDP0046

EL6939CLZ-T13

(Note)

32-Pin QFN

(Pb-Free)

13”

GET FULL DATASHEET

NOTE: Intersil Pb-free products employ special Pb-free material sets;

molding compounds/die attach materials and 100% matte tin plate

termination finish, which are RoHS compliant and compatible with

both SnPb and Pb-free soldering operations. Intersil Pb-free products

are MSL classified at Pb-free peak reflow temperatures that meet or

exceed the Pb-free requirements of IPC/JEDEC J STD-020C.

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

中文翻译

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