MAX9484CTP-T Maxim Integrated, MAX9484CTP-T Datasheet

MAX9484CTP-T

Manufacturer Part Number

MAX9484CTP-T

Description

Laser Drivers

Manufacturer

Maxim Integrated

Datasheet

1.MAX9484CTP.pdf (15 pages)

Specifications of MAX9484CTP-T

Operating Supply Voltage

4.5 V to 5.5 V

Maximum Operating Temperature

+ 70 C

Package / Case

TQFN

Minimum Operating Temperature

0 C

Mounting Style

SMD/SMT

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The MAX9483/MAX9484 high-performance, multimode,

laser-diode drivers (LDDs) are designed for CD and

DVD combination pickup heads. The drivers consist of

three input channels, an RF oscillator, and two preci-

sion current-amplifier outputs to drive the CD and DVD

laser diodes. The MAX9483/MAX9484 support multiple

CD and DVD read/write standards, such as CD-R/RW,

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

choosing the writing control signals and input currents

on these input channels. The peak total output current

is 400mA with a current gain of 100 at each channel.

External resistors set the oscillation frequency and out-

put swing. The MAX9484 features an extra resistor

input allowing the oscillation frequencies of the two out-

puts to be set separately. Additionally, the MAX9484

allows the writing control signals to be received in low-

voltage differential signal (LVDS) mode or single-ended

mode to provide reliable high-speed writing.

The MAX9483 is offered in 16-pin QSOP and 4mm x 4mm

16-pin thin QFN packages. The MAX9484 is offered in a

4mm x 4mm 20-pin thin QFN package. Both devices are

specified for 4.5V to 5.5V supply and 0°C to +70°C tem-

perature range.

19-3265; Rev 0; 5/04

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Pin Configurations continued at end of data sheet.

TOP VIEW

Laser Diode Driver for CD-RW and DVD

Combos: CD-R/RW, DVD-R, DVD+R, DVD-RW,

DVD+RW, DVD-RAM

DVD Video Recorders

High-Power and High-Speed Laser-Writable

Device Drivers

ENABLE

ENOSC

NE2

NE3

IN1

IN2

IN3

________________________________________________________________ Maxim Integrated Products

MAX9483

General Description

QSOP

Pin Configurations

Applications

OUT1

GND

OUT2

OUTSEL

CD-RW/DVD Laser-Diode Drivers

Dual-Output, Multimode

♦ Dual Output Ports with Three Controlled-Current

♦ Support Various Laser-Diode Driver Standards

♦ MAX9483 is Pin and Function Compatible

♦ Independent Frequency Setting for the

♦ Accepts Differential (LVDS) or Single-Ended

♦ Enable Control

♦ High-Current Swing Up to 270mA for the Reading

♦ High 400mA Total Peak Writing Current

♦ Adjustable Modulation Frequency from 100MHz

♦ Fast Output-Current Pulse Rise and Fall Time

♦ 4.5V to 5.5V Single-Supply Voltage

♦ No External Reference Clock Required

♦ 0°C to +70°C Commercial Temperature Range

*Future product—contact factory for availability.

MAX9483CEE

MAX9483CTE*

MAX9484CTP

Channels

with ATMEL T0806

Two Output Ports (MAX9484)

Inputs for Writing Data (MAX9484)

Current

to 600MHz

1.0ns (typ)

CD-R/RW, DVD-R, DVD+R, DVD-RW, DVD+RW,

DVD-RAM, and DVD Video

PART

TEMP RANGE

0°C to +70°C

Ordering Information

PIN-PACKAGE

16 QSOP

16 Thin QFN

20 Thin QFN

Features

Related parts for MAX9484CTP-T

MAX9484CTP-T Summary of contents

Page 1

... Fast Output-Current Pulse Rise and Fall Time 1.0ns (typ) Applications ♦ 4.5V to 5.5V Single-Supply Voltage ♦ No External Reference Clock Required ♦ 0°C to +70°C Commercial Temperature Range PART MAX9483CEE MAX9483CTE* 15 OUT1 MAX9484CTP 14 GND *Future product—contact factory for availability OUT2 10 OUTSEL ...

Page 2

Dual-Output, Multimode CD-RW/DVD Laser-Diode Drivers ABSOLUTE MAXIMUM RATINGS GND ..............................................-0.3V to +6.0V CC CCO_ IN_ GND..................................-0. ENABLE, ENOSC, NE2_, NE3_, OUTSEL to GND.....................................-0. Output Voltage at ...

Page 3

DC ELECTRICAL CHARACTERISTICS (continued +4.5V to +5.5V CCO_ L (MAX9484), ENOSC = low 0°C to +70°C, unless otherwise noted. Typical values are (Notes PARAMETER SYMBOL DIGITAL ...

Page 4

Dual-Output, Multimode CD-RW/DVD Laser-Diode Drivers AC ELECTRICAL CHARACTERISTICS ( +4.5V to +5.5V 40mA (read) + 40mA CCO_ OUT NE3_ = differential high (MAX9484), ENOSC = low, T +5V +25°C.) (Notes 1, ...

Page 5

V = +5V +25°C, unless otherwise noted.) CC CCO_ A OSCILLATOR FREQUENCY vs. RESISTOR R F 700 600 500 400 300 200 100 (kΩ) F OSCILLATOR ...

Page 6

Dual-Output, Multimode CD-RW/DVD Laser-Diode Drivers PIN MAX9483 MAX9484 NAME QSOP TQFN TQFN IN1 IN2 IN3 4 2 — — NE2 6 4 — NE3 ...

Page 7

H ENABLE L H NE2 L H NE3 L I OUT t EN Figure 1. Timing Diagram of Output vs. Control Signals Detailed Description Read Channel and Write Channels The MAX9483/MAX9484 high-performance multimode LDDs are designed for CD and DVD ...

Page 8

Dual-Output, Multimode CD-RW/DVD Laser-Diode Drivers Applications Information LVDS Inputs for MAX9484 The MAX9484 input control signals, NE2_ and NE3_, are compatible with LVDS or single-ended inputs. The LVDS inputs allow the driver to handle higher data writing rates. When using ...

Page 9

CONTROL SIGNALS SINGLE- AND ENDED CURRENT INPUTS INPUTS Figure 4. MAX9483 Typical Operating Circuit _______________________________________________________________________________________ Dual-Output, Multimode CD-RW/DVD Laser-Diode Drivers NE2 MAX9483 NE3 +5V CORE LOGIC SUPPLY +5V OUTPUT SUPPLY OUT1 R ...

Page 10

Dual-Output, Multimode CD-RW/DVD Laser-Diode Drivers CONTROL SIGNALS AND CURRENT INPUTS LVDS INPUTS Figure 5. MAX9484 Typical Operating Circuit with LVDS Inputs 10 ______________________________________________________________________________________ NE2+ MAX9484 100Ω NE2- REF 100Ω +5V CORE LOGIC ...

Page 11

CONTROL SIGNALS AND CURRENT SINGLE- INPUTS ENDED INPUTS Figure 6. MAX9484 Typical Operation Circuit with Single-Ended Inputs ______________________________________________________________________________________ Dual-Output, Multimode CD-RW/DVD Laser-Diode Drivers NE2+ MAX9484 NE2- REF +5V CORE LOGIC SUPPLY +5V ...

Page 12

Dual-Output, Multimode CD-RW/DVD Laser-Diode Drivers TOP VIEW IN3 MAX9483 F NE2 3 EXPOSED PAD (GROUND) NE3 4 TQFN Chip Information TRANSISTOR COUNT: 1399 12 ______________________________________________________________________________________ Pin Configurations (continued OUT1 ...

Page 13

For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ Dual-Output, Multimode CD-RW/DVD Laser-Diode Drivers Package Information PACKAGE OUTLINE 12, 16, 20, 24L THIN QFN, 4x4x0.8mm ...

Page 14

Dual-Output, Multimode CD-RW/DVD Laser-Diode Drivers (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 14 ______________________________________________________________________________________ Package Information (continued) PACKAGE OUTLINE 12, 16, 20, 24L THIN ...

Page 15

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 15 © 2004 Maxim Integrated Products ...

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