MAX9483 Datasheet, PDF (1/15 Pages) Maxim Integrated Products – Dual-Output, Multimode CD-RW/DVD Laser-Diode Drivers

19-3265; Rev 0; 5/04
Dual-Output, Multimode
CD-RW/DVD Laser-Diode Drivers
General Description
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.
Applications
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
Features
♦ Dual Output Ports with Three Controlled-Current
Channels
♦ Support Various Laser-Diode Driver Standards
CD-R/RW, DVD-R, DVD+R, DVD-RW, DVD+RW,
DVD-RAM, and DVD Video
♦ MAX9483 is Pin and Function Compatible
with ATMEL T0806
♦ Independent Frequency Setting for the
Two Output Ports (MAX9484)
♦ Accepts Differential (LVDS) or Single-Ended
Inputs for Writing Data (MAX9484)
♦ Enable Control
♦ High-Current Swing Up to 270mA for the Reading
Current
♦ High 400mA Total Peak Writing Current
♦ Adjustable Modulation Frequency from 100MHz
to 600MHz
♦ Fast Output-Current Pulse Rise and Fall Time
1.0ns (typ)
♦ 4.5V to 5.5V Single-Supply Voltage
♦ No External Reference Clock Required
♦ 0°C to +70°C Commercial Temperature Range
Pin Configurations
TOP VIEW
IN1 ₁
IN2 2
IN3 3
R_F 4
NE2 5
NE3 6
ENABLE 7
ENOSC 8
MAX9483
16 V_CC
15 OUT1
14 GND
13 R_S1
12 R_S2
11 OUT2
10 OUTSEL
9 V_CC
QSOP
Pin Configurations continued at end of data sheet.
Ordering Information
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
*Future product—contact factory for availability.
________________________________________________________________ Maxim Integrated Products 1
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.