MAXIM MAX9483, MAX9484 Technical data

________________________________

概述

MAX9483/MAX9484

是高性能、多模式激光二极管驱动

器

(LDD)

，专为CD和

DVD

组合拾取头而设计。该驱动
器具有三个输入通道、一个RF振荡器以及两路精密电流
放大器输出，用来驱动CD和

DVD

激光二极管。通过选

择写控制信号和输入通道中的输入电流，

MAX9483/

MAX9484

可支持多种CD和

DVD读/

写标准， 例如

CD-R/RW、DVD-R、DVD+R、DVD-RW、DVD+RW

和

DVD-RAM

。峰值总输出电流为

400mA

，各通道的电流增

益为

100

。利用外接电阻可设定振荡频率和输出振幅。

MAX9484

还增加了一个外接电阻引脚，允许单独设定两

路输出的振荡频率。另外，

MAX9484

能够接受低压差分

信号

(LVDS)

模式或单端模式的写控制信号，以获得可靠

的高速写操作。

MAX9483

采用16引脚

QSOP

封装和

4mm x 4mm、16

引

脚的薄型

QFN

封装。

MAX9484

采用

4mm x 4mm、20

引

脚的薄型

QFN

封装。两款芯片的额定工作条件为

4.5V

至

5.5V

电源和

0°C至+70°C

温度范围。

________________________________

应用

CD-RW和DVD

组合激光二极管驱动器：

CD-R/RW、DVD-R、DVD+R、DVD-RW

、

DVD+RW和DVD-RAM

DVD

录像机

大功率、高速激光写装置驱动器

________________________________

特性

♦ 具有三个控制电流通道的双输出端口

♦ 支持多种激光二极管驱动器标准：

CD-R/RW、DVD-R、DVD+R、DVD-RW

、

DVD+RW、DVD-RAM和DVD

视频

♦

MAX9483

的引脚和功能与

ATMEL T0806

兼容

♦ 两个输出口独立设定频率

(MAX9484)

♦ 可接受差分

(LVDS)

或单端输入的写数据

(MAX9484)

♦ 使能控制

♦ 振幅高达

270mA

的大读取电流

♦ 总电流为

400mA

的高峰值写电流

♦ 可调节调制频率，从

100MHz至600MHz

♦ 极快的输出电流脉冲上升和下降时间：

1.0ns (

典型值

)

♦

4.5V至5.5V

的单电源电压

♦ 无需外部基准时钟

♦

0°C至+70°C

的商业级温度范围

MAX9483/MAX9484

双输出、多模式、

CD-RW/DVD

激光二极管驱动器

________________________________________________________________ Maxim Integrated Products 1

____________________________

引脚配置

____________________________

定购信息

19-3265; Rev 0; 5/04

本文是

Maxim

正式英文资料的译文，

Maxim

不对翻译中存在的差异或由此产生的错误负责。请注意译文中可能存在文字组织或

翻译错误，如需确认任何词语的准确性，请参考

Maxim

提供的英文版资料。

索取免费样品和最新版的数据资料，请访问

Maxim

的主页：

www.maxim-ic.com.cn

。

Pin Configurations continued at end of data sheet.

*

未来产品—供货状况请联络厂方。

查询MAX9476供应商

TOP VIEW

IN1

1

IN2

2

IN3

3

MAX9483

4

R

F

NE2

5

NE3

6

ENABLE

7

ENOSC

8

QSOP

16

V

CC

OUT1

15

GND

14

R

13

S1

R

12

S2

OUT2

11

OUTSEL

10

V

9

CC

PART TEMP RANGE PIN-PACKAGE

MAX9483CEE 0°C to +70°C 16 QSOP

MAX9483CTE* 0°C to +70°C 16 Thin QFN

MAX9484CTP 0°C to +70°C 20 Thin QFN

MAX9483/MAX9484

双输出、多模式、

CD-RW/DVD

激光二极管驱动器

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

(VCC= V

CCO_

= +4.5V to +5.5V, RL= 6.8Ω, ENABLE = high, NE2 = NE3 = high (MAX9483), NE2_ = NE3_ = differential high

(MAX9484), ENOSC = low, T

A

= 0°C to +70°C, unless otherwise noted. Typical values are at VCC= V

CCO_

= +5V, TA= +25°C.)

(Notes 1, 2, 4)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.

VCC, V

CCO_

to GND ..............................................-0.3V to +6.0V

IN_, R

F_

, RS_to GND..................................-0.3V to (VCC+ 0.3V)

ENABLE, ENOSC, NE2_, NE3_,

OUTSEL to GND.....................................-0.3V to (V

CC

+ 0.3V)

Output Voltage at OUT1, OUT2......................-0.3V to (V

CC

- 1V)

Continuous Power Dissipation (T

A

= +70°C)

QSOP (derate 8.3mW/°C above +70°C) ........................667mW

TQFN (derate 16.9mW/°C above +70°C).....................1349mW

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

ESD Rating (Human Body Model) .................................≥ ±2.0kV

Lead Temperature (soldering, 10s) .................................+300°C

POWER SUPPLY

Write-Mode Supply Current I

Read-Mode Supply Current I

Supply Current I

Power-Down Supply Current I

DIGITAL INPUTS FOR WRITE CHANNEL CONTROL (NE2, NE3) (MAX9483)

High-Level Input Voltage V

Low-Level Input Voltage V

Input Current I

LVDS DIGITAL INPUTS FOR WRITE CHANNEL CONTROL (NE2_, NE3_) (MAX9484)

Differential Input High Threshold V

Differential Input Low Threshold V

SINGLE-ENDED DIGITAL INPUTS FOR WRITE CHANNEL CONTROL (NE2+, NE3+) (MAX9484)

Reference Voltage V

High-Level Input Voltage V

Low-Level Input Voltage V

Input Current I

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

CC1

CC2

CC3

CC4

IH1

IL1

IN1

TH

TL

REF

IH2

IL2

IN2

I

= I

= I

= I

= I

= I

= I

IN3

IN3

IN3

IN3

IN3

= 0

= 500µA,

= 500µA,

= 8.2kΩ,

S

= 500µA

= 0

IN1

IN2

NE2 = NE3 = low

Oscillator enabled,

= I

I

IN1

IN2

ENOSC = high, R

= 6.8kΩ

R

F

Oscillator disabled,
I

= I

IN1

IN2

Input disabled,

= I

I

IN2

IN1

ENABLE = NE2 = NE3 = low,
I

= I

IN1

IN2

VIN = high or low -20 +20 µA

VIN = high or low -20 +20 µA

MAX9483 181 200

MAX9484 182 210

MAX9483 91 100

MAX9484 92 105

MAX9483 82 95

MAX9484 83 95

MAX9483 14 20

MAX9484 14 20

MAX9483 0.96 2.0

MAX9484 1.2 2.0

2.0 V

-50 mV

1.10 1.25 1.40 V

V

REF

300

0.8 V

50 mV

+

V

-

REF

300

mA

mA

mA

mA

mV

mV

MAX9483/MAX9484

双输出、多模式、

CD-RW/DVD

激光二极管驱动器

_______________________________________________________________________________________ 3

DC ELECTRICAL CHARACTERISTICS (continued)

(VCC= V

CCO_

= +4.5V to +5.5V, RL= 6.8Ω, ENABLE = high, NE2 = NE3 = high (MAX9483), NE2_ = NE3_ = differential high

(MAX9484), ENOSC = low, T

A

= 0°C to +70°C, unless otherwise noted. Typical values are at VCC= V

CCO_

= +5V, TA= +25°C.)

(Notes 1, 2, 4)

DIGITAL INPUTS FOR CONTROL SIGNALS (ENABLE, OUTSEL, ENOSC)

High-Level Input Voltage V

Low-Level Input Voltage V

Input Current I

ANALOG INPUTS (IN1, IN2, IN3)

Current Channel Input Current
Range

Current Channel Input
Impedance

OUTPUTS (OUT1 and OUT2)

Maximum Total Output Current I

Maximum Output Current per
Channel

Best-Fit Current Gain A

Best-Fit Current Offset I

Output Current Linearity Any channel (Note 3) -3 +3 %

Output Off Current

Read-Mode Output Supply
Sensitivity

Write-Mode Output Supply
Sensitivity

Read-Mode Output Temperature
Sensitivity

Write-Mode Output Temperature
Sensitivity

Output Noise I

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

IH3

IL3

IN3

I

CIN

R

IN

OUT

I

OUT

I

OFFSET

I

OFF1

I

OFF2

I

OFF3

VIN = high or low -10 +10 µA

Current flowing into IN1, IN2, or IN3 0 4.0 mA

IN_ to GND 165 200 235 Ω

Read current IN1 210 273

Write current IN2, IN3 250 347

Any channel (Note 3) 100 I/I

Any channel (Note 3) -4 +4 mA

ENABLE = low 0.2 1

NE2 = NE3 = high, I

= I

I

IN2

NE2 = NE3 = low, I

I

OUT

I

OUT

I

OUT

I

OUT

OUT

= 500µA

IN3

= 40mA -2 +2 %/V

= 80mA -2 +2 %/V

= 40mA 15 ppm°C

= 80mA 16 ppm°C

= 40mA, ENOSC = low 3 nA/√Hz

IN1

IN1

= 0µA,

= I

IN2

= I

= 0µA 0.14 5

IN3

2.0 V

320 400 mA

0.8 V

0.22 1.5

mA

mA

MAX9483/MAX9484

双输出、多模式、

CD-RW/DVD

激光二极管驱动器

4 _______________________________________________________________________________________

Note 1: Current into a pin is defined as positive. Current out of a pin is defined as negative. All voltages are referenced to ground

except V

TH

.

Note 2: Maximum and minimum limits over temperature are guaranteed by design and characterization. Devices are production

tested at T

A

= +25°C.

Note 3: Linearity of the amplifier is calculated using a best-fit method at three operating points of I

OUT

at 20mA, 40mA, and 60mA.

I

OUT

= (IINx GAIN) + I

OFFSET

.

Note 4: Guaranteed by design and characterization. Limit set at ±6 sigma.

AC ELECTRICAL CHARACTERISTICS

(VCC= V

CCO_

= +4.5V to +5.5V, I

OUT

= 40mA (read) + 40mA, RL= 6.8Ω, ENABLE = high, NE2 = NE3 = high (MAX9483), NE2_ =

NE3_ = differential high (MAX9484), ENOSC = low, T

A

= 0°C to +70°C, unless otherwise noted. Typical values are at VCC= V

CCO_

=

+5V, T

A

= +25°C.) (Notes 1, 4)

OSCILLATOR

Oscillator Frequency f

Oscillator Temperature
Coefficient

OUTPUT TIMING

Write Rise Time t

Write Fall Time t

Output-Current Overshoot OCO 5 %

Output ON Propagation Delay t

Output OFF Propagation Delay t

Output Disable Time t

Output Enable Time t

Oscillator Disable Time t

Oscillator Enable Time t

Channel-Select Delay

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

OSC

ON

OFF

DIS

EN

DISO

EHO

t

ODH

t

ODL

r

f

RF_ = 7.5kΩ (Note 2), I

= 7.5kΩ 10 ppm/°C

R

F_

I

= 40mA (read) + 40mA (10% to 90%) 0.9 1.6 ns

OUT

I

= 40mA (read) + 40mA (90% to 10%) 1.0 1.6 ns

OUT

NE 50% high-low to IOUT at 50% of final value 1.0 2.0 ns

NE 50% low-high to IOUT at 50% of final value 1.0 2.0 ns

ENABLE 50% high-low to I
value at I

ENABLE 50% low-high to I
value at I

ENOSC 50% high-low to I
value at I

ENOSC 50% high-low to I
value at I

OUTSEL 50% low-high to I
value measured at OUT1

OUTSEL 50% high-low to I
value measured at OUT2

= 40mA (read)

OUT

= 40mA (read)

OUT

= 40mA (read)

OUT

= 40mA (read)

OUT

= 40mA (read) 255 300 350 MHz

OUT

at 50% of final

OUT

at 50% of final

OUT

at 50% of final

OUT

at 50% of final

OUT

at 50% of final

OUT

at 50% of final

OUT

60 100 ns

60 100 ns

410ns

25 50 ns

2.9 10

2.9 10

ns

MAX9483/MAX9484

双输出、多模式、

CD-RW/DVD

激光二极管驱动器

_______________________________________________________________________________________ 5

_______________________________________________________________

典型工作特性

(VCC= V

CCO_

= +5V, TA= +25°C, unless otherwise noted.)

700

600

500

400

FREQUENCY (MHz)

300

200

100

35467891011 12

OSCILLATOR FREQUENCY

vs. RESISTOR R

RF (kΩ)

F

MAX9483 toc01

OSCILLATOR FREQUENCY

vs. TEMPERATURE

320

315

310

305

300

295

FREQUENCY (MHz)

290

285

280

02010 30 40 50 60 70

TEMPERATURE (°C)

OSCILLATOR PEAK-TO-PEAK SWING

80

vs. RESISTOR R

70

60

)

50

P-P

40

SWING (mA

30

20

10

0

354 678910

RS (kΩ)

MAX9483 toc04

S

(mA)

OUT

I

450

400

350

300

250

200

150

100

50

OSCILLATOR PEAK-TO-PEAK SWING

vs. FREQUENCY

100

90

80

MAX9483 toc02

70

)

P-P

60

50

40

SWING (mA

30

20

10

0

200 300 350250 400 450 500 550 600

FREQUENCY (MHz)

OUTPUT CHANNEL CURRENT

= I

vs. INPUT CURRENT (I

VCC = 5.25V

VCC = 5.0V

0

0 600300 900 1200 1500

I

(µA)

IN_

IN1

= I

IN2

VCC = 4.75V

)

IN3

MAX9483 toc05

MAX9483 toc03

OUTPUT VOLTAGE COMPLIANCE

350

300

250

200

(mA)

OUT

I

150

100

50

0

021345

VCC - V

(V)

OUT

MAX9483 toc06

50mA +50mA PULSE (10ns)

TIME (5ns/div)

MAX9483 toc07