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IC-PN3312 phased array nonius encoder 33-512 rev a1, page 1/ 7 features ? compact photosensor for high-resolution nonius scanning ? phased-array design for 511/512/496 ppr (n/m/s channel) with excellent signal matching ? reduced cross talk due to moderate track pitch ? ultra low dark currents for operation to high temperature ? low noise ampli?ers with high transimpedance of typ. 1 m
? short-circuit-proof, low impedance voltage outputs for enhanced emi tolerance ? space saving optoqfn and optobga packages (rohs compliant) ? low power consumption from single 4.5 to 5.5 v supply ? operational temperature range of -40 to +110 c ? suitable code disc: lshc9s 33-512n (glass 1 mm) od ? 33 mm, id ? 18.0 mm, optical radius 14.5 mm applications ? absolute position encoders packages 15-pin optobga 6.2 mm x 5.2 mm x 1.7 mm 32-pin optoqfn 5 mm x 5 mm x 0.9 mm block diagram copyright ? 2010 ic-haus http://www.ichaus.com p r e l i m i n a r y p r e l i m i n a r y

ic-pnxxxx
IC-PN3312 phased array nonius encoder 33-512 rev a1, page 2/ 7 description the optical encoder ic-pn features monolithically in- tegrated photosensors arranged as a phased-array. the transimpedance gain of typically 1 m
generates output signals of a few hundred millivolts already from an illumination level of 0.5 mw/cm 2 . in most cases no additional measures must be considered to ?lter for noise and interferences. the spectral sensitivity range includes visible to near infrared light, with the maximum sensitivity being close to a wavelength of 680 nm. analog nonius-scale encoders are the typical ap- plication for ic-pn. its 3-track scanning features a phased-array of multiple photosensors each per track, generating positive and negative going sine signals, as well as positive and negative going cosine signals. an excellent matching and common mode behavior of the differential signal paths is obtained by a paired ampli?er design, reducing the needs for external signal calibration to an absolute minimum. packages information pad layout (2.88 mm x 3.37 mm) pad functions no. name function 1 vcc +4.5..5.5 v supply voltage 2 vref reference voltage output 3 ps_n n-track sine + 4 ns_n n-track sine - 5 ps_m m-track sine + 6 ns_m m-track sine - 7 ps_s s-track sine + 8 ns_s s-track sine - 9 nc_s s-track cosine - 10 pc_s s-track cosine + 11 nc_m m-track cosine - 12 pc_m m-track cosine + 13 nc_n n-track cosine - 14 pc_n n-track cosine + 15 gnd ground all outputs are analog voltage outputs. p r e l i m i n a r y p r e l i m i n a r y
IC-PN3312 phased array nonius encoder 33-512 rev a1, page 3/ 7 pin configuration obga lsh2c (6.2 mm x 5.2 mm) pin functions no. name function a2 vcc +4.5..5.5 v supply voltage a3 vref reference voltage output a4 gnd ground b1 ps_n n-track sine + b2 ns_n n-track sine - b3 nc_n n-track cosine - b4 pc_n n-track cosine + c1 ps_m m-track sine + c2 ns_m m-track sine - c3 nc_m m-track cosine - c4 pc_m m-track cosine + d1 ps_s s-track sine + d2 ns_s s-track sine - d3 nc_s s-track cosine - d4 pc_s s-track cosine + pin configuration oqfn32-5x5 (5 mm x 5 mm) pin functions no. name function 1 vcc +4.5..5.5 v supply voltage 2 vref reference voltage output 3 ps_n n-track sine + 4 ns_n n-track sine - 5 ps_m m-track sine + 6 ns_m m-track sine - 7 ps_s s-track sine + 8 ns_s s-track sine - 17 nc_s s-track cosine - 18 pc_s s-track cosine + 19 nc_m m-track cosine - 20 pc_m m-track cosine + 21 nc_n n-track cosine - 22 pc_n n-track cosine + 24 gnd ground bp backside pad (oqfn32-5x5 only): not intended as an electrical connection point; when using as shield a single link to gnd is permissible. package quali?cation optoqfn32-5x5 pending. p r e l i m i n a r y p r e l i m i n a r y 1 2 3 a b c d 4 29 28 30 31 32 26 27 25 11 12 13 14 15 1 23 4 56 7 8 17 18 19 20 21 22 23 24 9 10 16
IC-PN3312 phased array nonius encoder 33-512 rev a1, page 4/ 7 absolute maximum ratings these ratings do not imply operating conditions; functional operation is not guaranteed. beyond these ratings device damage may occur. item symbol parameter conditions unit no. min. max. g001 vcc voltage at vcc -0.3 6 v g002 i(vcc) current in vcc -20 20 ma g003 v() pin voltage, all signal outputs -0.3 vcc + 0.3 v g004 i() pin current, all signal outputs -20 20 ma g005 vd() esd susceptibility, all pins hbm, 100 pf discharged through 1.5 k
2 kv g006 tj junction temperature -40 150 c g007 ts chip storage temperature -40 150 c thermal data item symbol parameter conditions unit no. min. typ. max. t01 ta operating ambient temperature range package obga lsh2c -40 110 c package oqfn32-5x5* -40 110 c (extended temperature range on request) t02 ts storage temperature range package obga lsh2c, -40 110 c package oqfn32-5x5* t03 tpk soldering peak temperature package obga lsh2c tpk < 20 s, convection re?ow 245 c tpk < 20 s, vapor phase soldering 230 c tol (time on label) 8 h; please refer to customer information ?le no. 7 for details. t04 tpk soldering peak temperature package oqfn32-5x5* tpk < 20 s, convection re?ow 245 c tpk < 20 s, vapor phase soldering 230 c msl 5a (max. ?oor live 24 h at 30 c and 60 % rh); please refer to customer information ?le no. 7 for details. *) package quali?cation pending. all voltages are referenced to ground unless otherwise stated. all currents ?owing into the device pins are positive; all currents ?owing out of the device pins are negative. p r e l i m i n a r y p r e l i m i n a r y
IC-PN3312 phased array nonius encoder 33-512 rev a1, page 5/ 7 electrical characteristics operating conditions: vcc = 4.5...5.5 v, tj = -40..125 c, unless otherwise stated item symbol parameter conditions unit no. min. typ. max. total device 001 vcc permissible supply voltage 4.5 5.5 v 002 i(vcc) supply current in vcc no load, photocurrents within linear op. range (no override) 9.5 15 ma 003 vc()hi clamp-voltage hi at all pins i() = 4 ma 11 v 004 vc()lo clamp-voltage lo at all pins i() = -4 ma -1.2 -0.3 v photosensors 101 ar spectral application range se( ar) = 0.25 x s( )max 400 950 nm 102 pk peak sensitivity wavelength 680 nm 103 aph() radiant sensitive area 0.077 mm 2 104 s( ) spectral sensitivity led = 740 nm 0.5 a/w 105 s( pk)max maximum spectral sensitivity led = pk 0.55 a/w 106 e()mxr irradiance for maximum signal level led = 740 nm, vout() not saturated 2.8 5.2 8.4 mw/ cm 2 photocurrent ampli?ers 201 iph() permissible photocurrent operat- ing range 0 280 na 202 ()r photo sensitivity (light-to-voltage conversion ratio) led = 740 nm 0.2 0.3 0.5 v/w 203 z() equivalent transimpedance gain z = vout() / iph() 0.7 1.0 1.4 m
204 tcz temperature coef?cient of tran- simpedance gain -0.12 %/c 209 z()pn transimpedance gain matching p.. channel vs. corresponding n.. channel -0.2 0.2 % 210 vout()pn signal matching no illumination, any output vs. any output -35 35 mv 211 vout()pn signal matching no illumination, p.. output vs. corresponding n.. output -2.5 2.5 mv 212 fc()hi cut-off frequency (-3 db) 400 khz 213 vnoise() rms output noise illuminated to 500 mv signal level above dark level, 500 khz band width 0.5 mv signal outputs 301 vout()mx permissible maximum output voltage illumination to e()mxr, linear gain 2.45 2.72 3.02 v 302 vout()d dark signal level no illumination, load 20 k
vs. +2 v 600 770 1000 mv 303 vout()acmx maximum signal level vout()acmx = vout()mx - vout()d 1.48 1.96 2.35 v 304 isc()hi short-circuit current hi load current to ground 100 420 800 a 305 isc()lo short-circuit current lo load current to ic 250 480 700 a 306 ri() internal output resistance f = 1 khz 70 110 180
307 ton() power-on settling time vcc = 0 v ! 5 v 100 s reference voltage vref 401 vref reference voltage i(vref) = 0...+1.6 ma 600 770 1000 mv 402 dvout() load balancing i(vref) = 0...+1.6 ma -10 +10 mv 403 isc()hi short-circuit current hi load current to ground 200 420 800 a 404 isc()lo short-circuit current lo load current to ic 2 4.5 10 ma p r e l i m i n a r y p r e l i m i n a r y
IC-PN3312 phased array nonius encoder 33-512 rev a1, page 6/ 7 application circuits figure 1: application example of absolute encoder circuit. ic-haus expressly reserves the right to change its products and/or speci?cations. an info letter gives details as to any amendments and additions made to the relevant current speci?cations on our internet website www.ichaus.de/infoletter ; this letter is generated automatically and shall be sent to registered users by email. copying C even as an excerpt C is only permitted with ic-haus approval in writing and precise reference to source. ic-haus does not warrant the accuracy, completeness or timeliness of the speci?cation and does not assume liability for any errors or omissions in these materials. the data speci?ed is intended solely for the purpose of product description. no representations or warranties, either express or implied, of merchantability, ?tness for a particular purpose or of any other nature are made hereunder with respect to information/speci?cation or the products to which information refers and no guarantee with respect to compliance to the intended use is given. in particular, this also applies to the stated possible applications or areas of applications of the product. ic-haus conveys no patent, copyright, mask work right or other trade mark right to this product. ic-haus assumes no liability for any patent and/or other trade mark rights of a third party resulting from processing or handling of the product and/or any other use of the product. as a general rule our developments, ips, principle circuitry and range of integrated circuits are suitable and speci?cally designed for appropriate use in technical applications, such as in devices, systems and any kind of technical equipment, in so far as they do not infringe existing patent rights. in principle the range of use is limitless in a technical sense and refers to the products listed in the inventory of goods compiled for the 2008 and following export trade statistics issued annually by the bureau of statistics in wiesbaden, for example, or to any product in the product catalogue published for the 2007 and following exhibitions in hanover (hannover-messe). we understand suitable application of our published designs to be state-of-the-art technology which can no longer be classed as inventive under the stipulations of patent law. our explicit application notes are to be treated only as mere examples of the many possible and extremely advantageous uses our products can be put to. p r e l i m i n a r y p r e l i m i n a r y ic- pnxxxx ic-mn disc
IC-PN3312 phased array nonius encoder 33-512 rev a1, page 7/ 7 ordering information type package options order designation IC-PN3312 - IC-PN3312 chip 32-pin optoqfn, 5 mm x 5 mm, thickness 0.9 mm IC-PN3312 oqfn32-5x5 15-pin optobga, 6.2 mm x 5.2 mm, thickness 1.7 mm IC-PN3312 obga lsh2c suitable code disc 511/512/496 ppr, od ? 33 mm, id ? 18.0 mm, optical radius 14.5 mm (glass 1 mm) lshc9s 33-512n for technical support, information about prices and terms of delivery please contact: ic-haus gmbh tel.: +49 (61 35) 92 92-0 am kuemmerling 18 fax: +49 (61 35) 92 92-192 d-55294 bodenheim web: http://www.ichaus.com germany e-mail: sales@ichaus.com appointed local distributors: http://www.ichaus.com/sales_partners p r e l i m i n a r y p r e l i m i n a r y

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