PAW3512DK series a ll rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 1 p ixart ima g in g inc. e -mail: fae_service@pixart.com.tw v1.0 oct. 2010 PAW3512DK series usb optical mouse single chip general description the PAW3512DK is an ultra low cost cmos process optical mouse sensor single chip with usb interface that serves as a non-mechanical motion estimation engine for implementing a computer mouse. the PAW3512DK also embedded internal rc function to replace external resonator for bom cost reduction and supported flexibility function change by programmer for easy and fast production. features ? usb interface ? single power supply ? optical motion estimation technology ? complete 2-d motion sensor ? accurate motion estimation over a wide ran g e of surfaces ? high speed motion detection up to 28 inches/sec ? power saving mode during times of no movement ? supports three buttons (r, m, l) and three axes (x, y, z) output ? z-axis support mechanical input ? internal rc oscillation without external resonator ? usb spec. ? complete universal serial bus specs v1.1 compatibility ? complete usb hid specs v1.11 compatibility ? inte g rated usb transceiver and 1.5mbps usb serial interface engine ? flexibility function change key specification power supply wide operating supply range 4.25v ~ 5.5v interface usb optical lens 1:1 system clock 24.000 mhz speed 28 inches/sec acceleration 8g resolution 1000 cpi frame rate 3000 frames/sec operating current 10ma @mouse moving (normal) 5ma @mouse not moving (sleep) 480ua @usb suspend (suspend) package shrunk dip12 ordering information part number sensor rotate cpi interface PAW3512DK-tjza 0 ? 1000 u+p PAW3512DK-tjya 0 ? 1000 u
pixart imaging inc. PAW3512DK series usb optical mouse sensor single chip 1. pin configuration 1.1 pin description a ll rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 2 p ixart ima g in g inc. e -mail: fae_service@pixart.com.tw v1.0 oct. 2010 pin # name type definition 1 bl in button left key input, normal pull-high, press connect to low 2 led i/o led control 3 vddq bypass i/o voltage reference 4 vss gnd chip ground 5 vdd5v pwr chip power vdd, 5.0v 6 vdda bypass analog voltage reference 7 d+/clk i/o usb d+ or ps/2 mouse clock line 8 d-/data i/o usb d- or ps/2 mouse data line 9 br in button right key input, normal pull-high, press connect to low 10 bm in button middle key input, normal pull-high, press connect to low 11 z2 in z axis, support mechanical scroller input 12 z1 in z axis, support mechanical scroller input 1.2 pin assignment for sensor rotate 0 ? , +90? , -90 ? , 180? figure 1. top view pinout
pixart imaging inc. PAW3512DK series usb optical mouse sensor single chip a ll rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 3 p ixart ima g in g inc. e -mail: fae_service@pixart.com.tw v1.0 oct. 2010 figure 2. top view of mouse 2. block diagram and operation power on reset cmos image sensor digital signal processor usb mouse controller debounce led drive d+ d- internal rc voltage regulator and power control br bl bm led vdda vdd5v usb interface button voltage reference 5v power z-axis counter z1 z2 wheel vss vddq figure 3. block diagram the PAW3512DK supports x, y, z three axes, and l, r, m three buttons under usb mode. it is a cmos process optical mouse sensor single chip with usb inte rface that serves as a non-mechanical motion estimation engine for implementing a computer mouse. the PAW3512DK is in a 12-pin optical package and come s with the resolution of 1000 counts per inch (cpi) and the rate of motion up to 28 inches per second. it includes usb interface so that no mouse controller is needed to interface through usb. th e PAW3512DK can receive command and echo status or data format, both complete universal serial bus ? spec v1.1 and usb hid spec v1.11 compatibility. it is also a cost effective solution to support usb mouse.
pixart imaging inc. PAW3512DK series usb optical mouse sensor single chip 3. referencing application circuit 3.1 3d3b application circuit a ll rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission. 4 p ixart ima g in g inc. e -mail: fae_service@pixart.com.tw v1.0 oct. 2010 u1 paw3512 2 6 3 7 8 1 4 5 9 10 11 12 led vdda vddq d+ d- bl vss vdd5v br bm z2 z1 + c4 1uf r5 33 ohm + c2 10uf + c3 1uf c5 0.1uf 1. r4,r5,c6,c7 are for emc immunity d1 led c7 27pf br jp1 usb cable vbus gnd shield d- d+ ensw1 2. usb cable connector jp1 is suggested to has the pin sequence like this: z2 z1 com r4 33 ohm vbus, gnd, shield, d-, d+ note: bl bm r6 10 ohm r1 vdd_5v vdd_5v vdd_5v c1 0.1uf c6 27pf figure 4. application circuit for PAW3512DK
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