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. maxims 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 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 i 2 c 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 19-6444; rev 2; 4/13 ordering information appears at end of data sheet. for related parts and recommended products to use with this part, refer to: www.maximintegrated.com/MAX3601.related serial por t clk/scl demul tiplexer subpixel genera tor control logic pulse-off temp alarm pixel clock d[0:11] dclk dio/sda cs 3-wire port (3.3v or 1.8v cmos) en_main marker video mark enable (3.3v or 1.8v cmos) video data (1.8v cmos) video clock (1.8v cmos) gain settings laser driver video settings en1..3 laser 1 out1 +v a1 video 8 output 1 laser 2 out2 +v a2 video 8 output 2 laser 3 out3 +v a3 video 8 output 3 avdd dvdd avcc dvcc agnd +1.8v +3.3v 0v dgnd testa testb testc MAX3601 laser driver for projectors abridged data sheet for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim integrateds website at www.maximintegrated.com.
2 typical operating circuits (continued) ordering information + denotes a lead (pb)-free/rohs-compliant package. * ep = exposed pad. package information for the latest package outline information and land patterns (foot - prints), go to www.maximintegrated.com/packages . note that a +, #, or - in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing pertains to the package regardless of rohs status. part temp range pin-package MAX3601gtl+ -40 n c to +105 n c 40 tqfn-ep* MAX3601cwo+ 0 n c to +70 n c 42 wlp package type package code outline no. land pattern no. 40 tqfn-ep t4055n+1 21-0140 90-0103 42 wlp w423e3+1 21-0440 refer to application note 1891 out1 out2 out3 out1 out2 out3 laser MAX3601 MAX3601 +v l +1.8v +3.3v +3.3v +1.8v enable serial data vide o processor serial clock chip select2 chip select1 video data data clock 12 video mark testa testb testc testa testb testc avcc avcc dvcc dvcc dvdd dvdd avdd avdd dclk dclk d0:d11 d0:d11 marker marker en_main en_main clk/scl clk/scl cs cs dio/sda dio/sda agnd dgnd agnd dgnd high-current laser driver maxim integrated MAX3601 laser driver for projectors abridged data sheet
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