MAX3601 Datasheet, PDF (1/2 Pages) Maxim Integrated Products – Laser Driver for Projectors

ABRIDGED DATA SHEET
MAX3601
Laser Driver for Projectors
General Description
The MAX3601 laser driver for pico projectors supports
video imaging with red, blue, and green lasers. Each
output includes two 8-bit digital-to-analog converters
(DACs) with programmable gain and up to 400mA
driving capability per channel. DAC A has a full-scale
current up to 320mA, while DAC B has full-scale current
up to 80mA. All three channels can be combined into a
single channel with up to 1.2A drive capability.
Maxim’s patented technology allows pulsed current to
operate lasers efficiently while reducing speckle. This
feature operates from the video data clock. The driver
is available in a 3.0mm x 3.5mm, 42-bump wafer-level
package for commercial applications and a 5mm x 5mm,
40-pin TQFN package for industrial and automotive
applications.
Applications
RGB Pico Laser Projector
Laser Light Source for LCOS Projectors
High-Current LED or Laser Pulse Generator
Ordering Information appears at end of data sheet.
Benefits and Features
S Integrates Three Current-Output Laser Drivers
 Compatible with Most Red, Blue, and Green
Lasers
 8-Bit Video DACs, DC to 167MHz operation
 Patented Pulsing Feature Reduces Laser
Speckling
 1ns Output Switching Time
 Pulse Switching Speed Enhancer
S Minimizes PCB Area with Functional Integration
 SPI or I²C Serial Port Control
 1.8V to 3.3V Operation
 8-Bit Gain Adjustment
 Programmable Pulse Current
 42-Bump WLP (3.0mm x 3.5mm) and 40-Pin
TQFN (5mm x 5mm) Packages
 Integrated Temperature Sensor
S Low Power Requirements
 < 80mW for Black Video Images
 Output Disable Using Video Marker
 Output Voltage Sensor
S Laser Enable Function Supports Safety Compliance
Simplified Functional Diagram
CS
3-WIRE PORT DIO/SDA
(3.3V OR 1.8V CMOS) CLK/SCL
SERIAL PORT
GAIN SETTINGS
VIDEO SETTINGS
8
VIDEO DATA D[0:11]
8
(1.8V CMOS)
DEMULTIPLEXER
VIDEO CLOCK DCLK
(1.8V CMOS)
8
PIXEL CLOCK
VIDEO MARK ENABLE ^MARKER
(3.3V OR 1.8V CMOS) ^EN_MAIN
SUBPIXEL GENERATOR
PULSE-OFF
CONTROL LOGIC
EN1..3
LASER DRIVER
VIDEO
OUTPUT 1
OUT1 ^{LASER 1} _+VA1
VIDEO
OUTPUT 2
OUT2 ^{LASER 2} _+VA2
VIDEO
OUTPUT 3
TEMP ALARM
OUT3 ^{LASER 3} _+VA3
AVDD
DVDD
AVCC
DVCC
AGND
DGND
TESTA
TESTB
TESTC
+1.8V
+3.3V
0V
For related parts and recommended products to use with this part, refer to: www.maximintegrated.com/MAX3601.related
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-6444; Rev 2; 4/13