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data sheet as2540 austria micro systems revision 3.1 page 1 of 18 austria micro systems general description the as2540 is a cmos integrated circuit that incorporates a speech circuit (line-adaptation, 2/4-wire conversion, separate rx- and tx-amplifiers for handset and modem), mf dialler, ring frequency detector, ring melody generator and a two wire serial interface. it shall act as an a/b-line-powered device in order to interface a main-powered cpu to the analogue telephone line. as2540 can operate in a so-called mainpower mode and in a backup mode. during mainpower mode, a watchdog timer is running on as2540, which has to be reset via the serial interface, which is connected to the cpu through opto-couplers. during backup mode (= the main-power failure or sw engine problem), as2540 can operate as an independent basic mf dialler (digits 0-9*#) applications - web telephones - answering machines - fax machines - base station of cordless telephones - hospital communication units key features - line interface, speech circuit, mf dialler and tone ringer on a 28 pin cmos chip - programmable via 2-wire serial interface (uart 9600 baud, 8n1) - watch dog timer for backup mode - additional input for modem transmit path - additional output for modem receive path - cmos for high emc immunity - low noise (max. ?72 dbm) - operating range from 15ma to 100ma (down to 5ma with reduced performance) - soft clipping for handset operation to avoid harsh distortion - line loss compensation selectable by pin option - real and complex impedance selectable by external components - side tone adaption selectable by external components - ring frequency discrimination - 3-tone ring melody generator package - 28 pin soic - dice-on-foil block diagram ls ro h ro t m1 m2 ti t ag nd li n e li ri stb cs ci dpn c1 c2 c3 r1 r2 mode rfd -2d b +6db +2db mask dt mf- generator dialler uart sti t sro h sro t sm ute dia l dig it sm a sk sd pn mo rxd t xd vdd ehs mhs vss osc main power mode ls ro h ro t m1 m2 t it a gnd line li ri stb cs ci dpn c1 c2 c3 r1 r2 mode rfd -2db +6db +2db mask dtmf- generator dialler uart sti t sro h sro t sm ute dial digit s mask s dpn mo rxd t xd vdd ehs mhs vss osc backup mode remote controlled single-chip-telephone as2540 data sheet (preliminary)
data sheet as2540 austria micro systems revision 3.1 page 2 of 18 pin description pin # symbol function 15 rfd r ing f requency d iscrimination schmitt trigger input for ring frequency discrimination. disabled during off-hook. 7ls l ine current s ense input input for sensing the line current 5li l ine i nput input used for power extraction and line current sensing 6ri r eceive i nput input for ac-separated receive signal 2stb s ide t one b alance input input for side tone cancellation network 3cs c urrent s hunt control output n-channel open drain output to control the external high power shunt transistor for synthesising ac- and dc- impedance, modulation of line voltage and shorting the line during make periods of pulse dialling 8ci c omplex i mpedance input input pin for the capacitor to program a complex impedance 16 dpn d ial p ulse output open drain output pulls low during break periods of pulse dialling and flash 17 ehs e lectronic h ook s witch schmitt trigger input to detect an electronic off-hook. 18 mhs m anual h ook s witch schmitt trigger input to detect a manual off-hook. 19 mode d tmf l evel s election -4/-6dbm ?> dls open -6/-8dbm ?> dls-r1 -8/-10dbm ?> dls-r2 l ine l oss c ompensation select pin 45ma-75ma ?> llc open 20ma-50ma ?> llc-r3 none ?> llc-r4 28 mo ring m elody o utput pdm output of the ring melody generator. 11 vdd v oltage d rain d rain positive power supply 4 vss v oltage s ource s ource negative power supply
data sheet as2540 austria micro systems revision 3.1 page 3 of 18 pin # symbol function 25 osc o scillator input input for ceramic resonator 3.58mhz. recommended type: murata csa 3.58mg312am or compatible 12 agnd a nalogue g round special ground for the internal amplifiers 26 rxd r eceive d ata input schmitt trigger input to serial interface 27 txd t ransmit d ata output open drain output from serial interface 20 21 r1 r2 keyboard r ows 22 23 24 c1 c2 c3 keyboard c olumns 10 rot r eceive o utput to t ransformer output for driving a transformer with an ac impedance larger than 10k ? 1tit t ransformer i nput from t ransformer single ended input for transformer 9roh r eceive o utput to h andset output for driving a dynamic earpiece with an impedance from 150 ? to 300 ? 13 14 m2 m1 m icrophone inputs differential inputs for the microphone (electret)
data sheet as2540 austria micro systems revision 3.1 page 4 of 18 functional description modes of operation there are 4 possible modes: idle mode manual hook-switch and electronic hook-switch (e.g. relay) is open (mhs ehs = logical 0), no ring signal is applied, the oscillator is stopped, signalling via the serial interface is not possible. ringing mode as2540 is supplied via the ring capacitor and external path, manual hook -switch and electronic hook-switch is open (mhs ehs = logical 0), the oscillator is running, a valid incoming ringing is signalled via the serial interface to the cpu. if the cpu does not reply the as2540 switches into backup mode and sends a ring melody to the mo output. backup mode manual hook-switch and/or electronic hook-switch is closed (mhs ehs = logical 1), as2540 is supplied with line current, the oscillator is running, the keyscan is enabled and the handset path is switched on, signalling via the serial interface is possible. after as2540 has started dialling in backup mode, he must not be interrupted any more in order to ensure consistent dialling. a mode transition bm -> mpm is only possible before as2540 has started dialling digits independently. main power mode manual hook-switch and/or electronic hook-switch is closed, as2540 is supplied with line current (mhs ehs = logical 1), the oscillator is running, the keyscan is disabled, as2540 is controlled via the serial interface, handset path or monitor path or modem path is on, signalling via the serial interface is possible. select operation mode command message switches on switches off sroh srot & stit srot & stit sroh & srot stit example main power mode ls ro h rot m1 m2 t it a gnd li n e li ri st b cs ci dpn c1 c2 c3 r1 r2 mode rfd -2db +6db +2db mask dt mf- generator dialler uart st it sro h sro t sm ute dia l dig it sm a s k sd pn mo rxd t xd vdd ehs mhs vss osc start-up in backup mode as soon as as2540 is supplied with line current, the external v dd capacitor will be charged up via the li and vdd pin and after the v dd voltage has reached the operating level, the handset path of the speech circuit is switched on. this off-hook status is also signalled to the internal logic via the mhs or ehs pin in order to start the pinscan and subsequently set the country specific modes. additionally a message is sent to the cpu. start-up in ring mode when a ringing signal is applied to the line, v dd of as2540 is charged up via an external path. after v dd has reached the operating voltage the oscillator starts and as2540 discriminates the ring frequency. after a valid ring frequency is applied on the rfd pin, the logic sends a message is sent to the cpu and a watchdog timer is started. when the message is not quit by the cpu before the watchdog timer has finished the countdown, as2540 changes into backup mode and sends out a melody via the mo pin. dc conditions the normal operating mode is from 15ma to 100ma. an operating mode with reduced performance is from 5ma to 15ma. in the line hold range from 0ma to 5ma the device is in a power down mode and the voltage at li is reduced to a maximum of 3.5v
data sheet as2540 austria micro systems revision 3.1 page 5 of 18 the dc characteristic is determined by the voltage at li pin and a 30 ? resistor between li and ls pin. it can be calculated by the following equation: v ls = v li + i line * 30 ? . the t.m. voltage at the li pin is 4.5v. the calculation leads to the following dc resistances: 330 ? to 75 ? at line currents from 15ma to 100ma. 2/4 wire conversion as2540 has a built-in dual wheatstone bridge with one common ground. this provides a maximum of independence of ac impedance and side tone from each other. one can adapt side tone without changing the ac impedance. a1=3.4/3.5 a2=-0.4 ac impedance the ac impedance of as2540 is set to t.m. 1000 ? . with the external capacitor at ci pin it can be programmed complex. with a parallel impedance at the ls pin it can be programmed to 600 ? . side tone a good sidetone cancellation can be achieved by using the following equation: z bal /z line = 10 transmit path the gain of the m1/m2 ?> ls transmit path is set to 38db for ac-impedance 1000 ? . the input is differential with an impedance of 25k ? . the soft clip circuit limits the output voltage at ls to 2v p. the attack time is 30s/6db and the decay time is 20ms/6db. the gain of the tit ?> ls transmit path is set to 8db for ac-impedance 1000 ? . the input is single ended with an impedance of 25k ? . the soft clip circuit is not active for this input. the dynamic range of this path is 2.5vp at ls. receive path the gain of the ls ?> roh receive path is set to 2db for ac-impedance 1000 ? . the receive input is the differential signal of ri and stb. during dtmf dialling a mf comfort tone is applied to roh which is -30db relative to the line level. the soft clip circuit limits the output voltage at roh to 1v p. it prevents harsh distortion and acoustic shock. the gain of the ls ?> rot receive path is set to 0db for ac-impedance 1000 ? . the receive input is the differential signal of ri and stb. the soft clip circuit is not active for this output. modescan the dtmf-level on the line and the function of the line loss compensation can be selected with the connection of the mode-pin to the keyboard matrix. the mode-pin is scanned once after each off-hook transition. r1 1 pin c1 2 3 r2 4 5 6 7 8 9 * 0 # pi n c2 pin c3 pin r1 pin r2 pin mode c1 c2 c3 c3 c2 c1 r2 r1 llc dtmf level 45ma-75ma -6dbm xx 45ma-75ma -8dbm x 45ma-75ma -10dbm x 20ma-50ma -6dbm x 20ma-50ma -8dbm xx 20ma-50ma -10dbm xx no llc -6dbm xx no llc -8dbm xxx no llc -10dbm x indicates connection to pin mode
data sheet as2540 austria micro systems revision 3.1 page 6 of 18 serial interface the communication principle is derived from a standard uart: - baud rate 9600 - start bit 1 - data bits 8 - parity none - stop bit 1 - lsb is transferred prior to msb rx - messages message format x msb x d 5 d 4 d 3 d 2 d 1 1 lsb d7 d6 d5 d4 d3 d2 d1 d0 dtmf-dial message notes xx 01010 1 digit 0 starts dtmf dialling of digit xx 00001 1 digit 1 starts dtmf dialling of digit xx 00010 1 digit 2 starts dtmf dialling of digit xx 00011 1 digit 3 starts dtmf dialling of digit xx 00100 1 digit 4 starts dtmf dialling of digit xx 00101 1 digit 5 starts dtmf dialling of digit xx 00110 1 digit 6 starts dtmf dialling of digit xx 00111 1 digit 7 starts dtmf dialling of digit xx 01000 1 digit 8 starts dtmf dialling of digit xx 01001 1 digit 9 starts dtmf dialling of digit xx 01011 1 digit * starts dtmf dialling of digit xx 00000 1 digit # starts dtmf dialling of digit xx 01100 1 digit a starts dtmf dialling of digit xx 01101 1 digit b starts dtmf dialling of digit xx 01110 1 digit c starts dtmf dialling of digit xx 01111 1 digit d starts dtmf dialling of digit xx 10000 1 keyreleased stops dialling d7 d6 d5 d4 d3 d2 d1 d0 pin-control message notes xx 10110 1 setdpn_high release pin dpn (open drain) xx 10001 1 setdpn_low force pin dpn = vss xx 10010 1 setmask force li-voltage to 1.2 v xx 10011 1resetmask
data sheet as2540 austria micro systems revision 3.1 page 7 of 18 d7 d6 d5 d4 d3 d2 d1 d0 pin-control message notes xx 10111 1 settestmode for factory test only xx 10100 1 muteon mute transmit path xx 10101 1 muteoff d7 d6 d5 d4 d3 d2 d1 d0 path-control message notes xx 11001 1 sethandsetpath xx 11101 1 setmonitorpath xx 11010 1 setmodempath xx 11000 1 requeststatus as2540 sends status information xx 11011 1 reserved xx 11100 1 reserved xx 11110 1 reserved xx 11111 1 reserved tx messages message message format for b 7 msb b 6 b 5 b 4 b 3 b 2 01 lsb b 7 b 6 b5 b 4 b 3 b2 b1 b0 status remark 1 0 1 valid ring signal detected 0 0 1 no ring signal 1 0 1 manual hook switch - off-hook (pin mhs) 0 0 1 manual hook switch - on-hook (pin mhs) 1 0 1 electronic hook switch - off-hook (pin ehs) 0 0 1 electronic hook switch - on-hook (pin ehs) status of as2540 000 0 1 no llc comparator ..................... 001 0 1 llc comparator 20ma (45ma) ... 010 0 1 llc comparator 26ma (51ma) ... 011 0 1 llc comparator 32ma (57ma) ... 100 0 1 llc comparator 38ma (63ma) ... 101 0 1 llc comparator 44ma (69ma) ... 110 0 1 llc comparator 50ma (75ma) ... coded status of llc comparator
data sheet as2540 austria micro systems revision 3.1 page 8 of 18 message message format b 7 msb b 6 b 5 11111 lsb b 7 b 6 b5 b 4 b 3 b2 b1 b0 status remark 1 1 1 1 10 1 valid ring signal detected 0 1 1 1 10 1 no ring signal 1 1 1 1 10 1 manual hook switch - off-hook (pin mhs) 0 1 1 1 10 1 manual hook switch - on-hook (pin mhs) 1 1 1 1 10 1 electronic hook switch - off-hook (pin ehs) 0 1 1 1 10 1 electronic hook switch - on-hook (pin ehs) status of as2540 protocol line events as2540 has 3 inputs, namely mhs (manual hook switch), ehs (electronic hook switch) and rfd (ring frequency detector), which sense the state of the two hook-switches and discriminate an applied ring signal. the mhs is connected to the manual hook switch which is operated by the handset and the ehs is connected to an electronic hook switch which is operated by the cpu. whenever the state of these inputs changes, as2540 immediately sends to the cpu after a debounce time. mhs and ehs up-debouncing lasts 15ms, down-debouncing lasts 85ms. rfd start to discriminate the ring frequency immediately but will send a message with a delay of 102ms. a status change of mhs and ehs pins must not change the momentary selected path of the speech network. the -message is sent without consideration of the momentary activities of as2540 in order to meet ptt requirements (e.g. line break signalling). the code for the -message is chosen with regard to the minimum current consumption in order to operate the optocouplers. pending -messages will be queued after the -message. an already running transmissions of will not be interrupted and will be sent afterwards in this case. - mode transitions idle bm mpm idle as2540 always starts up in backup mode and is prepared to act like an independent dialler. is sent to the cpu and as2540 remains in back-up mode until any valid message is sent from the cpu. this makes sure that a non-operable cpu does not disable basic dialling functions. - mode transition mpm bm a watchdog timer is started after and is reset whenever as2540 receives a message from the cpu via the serial interface. if the cpu does not send any further valid message within 2400ms, as2540 goes back into back-up mode, immediately locks the uart and remains in backup mode till next on-hook. dialling functions dtmf the dtmf generator provides 8 frequencies (in hz): 1 1 1 697+1209 2 2 2 697+1336 3 3 3 697+1477 4 4 4 770+1209 5 5 5 770+1336 6 6 6 770+1477 7 7 7 852+1209 8 8 8 852+1336 9 9 9 852+1477 * * * 941+1209 0 0 0 941+1336 # # # 941+1477
data sheet as2540 austria micro systems revision 3.1 page 9 of 18 the mf output levels are set to -4/-6db which should allow efficient backup dialling under all line conditions. the tone/pause ratio is 90ms/90ms. the preemphasis between low group and high group frequencies is t.m. 2.6db. flash timing cpu can control the dpn pin and the mask-mode of as2540 via serial interface. tone ringer ring frequency discrimination the ring frequency discrimination assures that only signals with a frequency between 13hz and 70hz are regarded as valid ring signals. when a valid ring signal is present for 102ms continuously, the ring melody generator is activated and remains active as long as a valid ring signal is present. once the ring melody generator has started, the ring signal is continuously monitored and the ring melody generator is instantly turned off according to the momentary presence of a valid or invalid ring signal until next off-hook. toner ringer melody the 3 basic melody frequencies are: - f1=880hz - f2=1067hz - f3=1333hz the repetition rate is set to 4 which means that the sequence of f1, f2, f3, f1, f2, f3 is repeated 4 times within a second. keyboard connections r1 1 pin c1 2 3 r2 4 5 6 7 8 9 * 0 # pi n c2 pi n c3 pi n r1 pi n r2 pin mode c1 c2 c3 double contacts under keys 0-9*#: one contact is connected to as2540, the other one to cpu.
data sheet as2540 austria micro systems revision 3.1 page 10 of 18 timing diagrams (unscaled) dialling - mf mode
data sheet as2540 austria micro systems revision 3.1 page 11 of 18 electrical characteristics electrical characteristics are measured with the test circuit application. typical mean values will not be tested. absolute maximum ratings positive supply voltage -0.3v <= v dd <= 7v input current +/- 25ma input voltage (ls) -0.3v <= v in <= 10v input voltage (li, cs) -0.3v <= v in <= 8v input voltage (stb, ri) -2v <= v in <= v dd +0.3v digital input voltage -0.3v <= v in <= v dd +0.3v electrostatic discharge (hbm 1.5k ? -100pf) +/- 800v storage temperature -65c to +125c recommended operating conditions supply voltage (generated internally) 3.6v <= v dd <= 5v oscillator frequency resonator murata csa 3.58mg312am 3.58mhz operating temperature -15c to +60c dc characteristics i line =15ma w/o operation of si through optocouplers, unless other specified symbol parameter conditions min typ max units test i dd operating current speech mode speech mode with si mf dialling ld dialling, v dd =2.5v ring mode, v dd =2.5v 3 5 4 200 300 5ma ma ma a a y n n n n v li line voltage 15ma<=i line <=100ma 4.2 4.5 4.8 v y i ol output current, sink cs, dpn, mo txd v ol =0.4v v ol =10ma 1 10 ma ma n n i oh output current, source mo v oh =v dd -0.4v -1 ma n
data sheet as2540 austria micro systems revision 3.1 page 12 of 18 transmit characteristics symbol parameter conditions min typ max units test a mtx transmit gain m1/m2 ?> ls z ac(syn) =1000 ? +36.5 +38 +39.5 db y a ttx transmit gain tit ?> ls z ac(syn) =1000 ? +6.5 +8 +9.5 db y thd distortion v ls =0.25v rms 2%y v agc soft clip level m1/m2 ?> ls at ls 2.0 v p n a sco soft clip overdrive m1/m2 20 db n z in input impedance m1/m2 - tit 20 k ? n v no noise output voltage ls t amp =25c -72 dbmp y rl return loss z ac(syn) =1000 ? 18 db y receive characteristics symbol parameter conditions min typ max units test a hrx receive gain ls ?> roh z ac(syn) =1000 ? +0.5 +2 +3.5 db y a trx receive gain ls ?> rot z ac(syn) =1000 ? -3.5 -2 -0.5 db y y thd distortion v ls =0.25v rms 2%y v agc soft clip level roh 1v p n a sco soft clip overdrive roh 10 db n v no noise output voltage roh - rot t amp =25c -72 dbmp y z in input imp. ri 8 k ? n st sidetone v ri <=0.25v rms 24 db y rl return loss z ac(syn) =1000 ? 18 db y
data sheet as2540 austria micro systems revision 3.1 page 13 of 18 ld characteristics symbol parameter conditions min typ max units test t(td) flash duration dpn pin status can be directly controlled via serial interface dtmf characteristics symbol parameter conditions min typ max units test v mflow tone level low group ls -6 dbm y ? v l-h preemphasis l-h 2.0 2.6 3.2 db y ufc unwanted frequency components 300hz - 4.3khz 4.3khz - 7khz 7khz - 10khz 10khz - 14khz 14khz - 28.5khz 28.5khz ? 40khz -40 -46 -52 -58 -70 -80 dbm dbm dbm dbm dbm dbm y y y y y y ? f frequency deviation 1.2 % y t(td) tone duration 80 82.3 85 ms y t(itp) inter tone pause 80 82.3 85 ms y t(mo) mute overhang 6 ms y v ct-h comfort tone (dtmf) roh rel. to ls -30 db n ringer characteristics symbol parameter conditions min typ max units test f1 frequency 1 770 800 830 hz y f2 frequency 2 1025 1067 1110 hz y f3 frequency 3 1280 1333 1385 hz y f min min. det. frequency 12 13 14 hz y f max max. det. frequency 68 70 75 hz y t dt detection time initially 102 ms n
data sheet as2540 austria micro systems revision 3.1 page 14 of 18 serial interface symbol parameter conditions min typ max units test t rxd-r rxd signal rise time v dd =4v,r pull-up =1.2k ? 30 s n t rxd-f rxd signal fall time 30 s n v comp input comparator level at rxd v dd /2 v n br rxd rxd baud rate +/-2% 9600 bps n br txd txd baud rate +/-2% 9600 bps y miscellaneous symbol parameter conditions min typ max units test t d key debouce time 15 ms n t time-out watch-dog timer 2400 ms n
data sheet as2540 austria micro systems revision 3.1 page 15 of 18 typical application
data sheet as2540 austria micro systems revision 3.1 page 16 of 18 test circuit r7 9k c3 10u ac r5 100 r6 300 c9 100u r11 330k c4 100u y1 3.58mhz c1 100n r4 30 r10 330k d1 10v ac d2 5v6 c11 10n c7 1u iline u1 as2540 15 7 5 6 2 3 8 16 17 18 28 11 4 25 12 26 27 19 20 21 22 23 24 10 1 9 13 14 rfd ls li ri stb cs ci dpn ehs mhs mo vdd vss osc agnd rxd txd mode r1 r2 c1 c2 c3 rot tit roh m1 m2 c5 100n c8 10u r8 600 r1 330k r9 6k q1 bc327 c6 100u ac r2 1k c2 100n r3 140 as2540 c10 22u
data sheet as2540 austria micro systems revision 3.1 page 17 of 18 packaging the device is available in the packages outlined below (not to scale). for exact mechanical package dimensions please see austriamicrosystems ag packaging information. 28-pin plastic soic (suffix t) max. body length 18.1mm / 713mil max. body width 7.6mm / 300mil pitch 1.27mm / 50mil pin-out 1? tit mo? 28 2? stb txd? 27 3 ? cs rxd ? 26 4 ? vss osc ? 25 5? li c3? 24 6 ? ri c2 ? 23 7? ls c1? 22 8 ? ci r2 ? 21 9? roh r1? 20 10 ? rot mode ? 19 11 ? vdd mhs ? 18 12 ? agd ehs ? 17 13 ? m1 dpn ? 16 14 ? m2 rfd ? 15 marking yywwaaa as2540 austria yy year of production ww calendar week of production aaa a m s ag assembly id ordering information number package description as2540t soic28 plastic small outline package - 28 leads (suffix t) AS2540Q dice-on-foil dice devices sold by austriamicrosystems ag are covered by the warranty and patent identification provisions appearing in its term of sale. austriamicrosystems ag makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. austriamicrosystems ag reserves the right to change specifications and prices at any time and without notice. therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems ag for current information. this product is intended for use in normal commercial applications. applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems ag for each application. copyright copyright ? 1997-2002, austriamicrosystems ag, schloss premstaetten, 8141 unterpremstaetten, austria-europe. trademarks registered ?. all rights reserved. the material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. the information furnished here by austriamicrosystems ag is believed to be correct and accurate. however, austriamicrosystems ag shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. no obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems ag rendering of technical or other services.
data sheet as2540 austria micro systems revision 3.1 page 18 of 18 contact headquarters austriamicrosystems ag communications business unit a 8141 schloss premst?tten, austria t. +43 (0) 3136 500 0 f. +43 (0) 3136 525 01 www.austriamicrosystems.com sales offices germany austriamicrosystems germany gmbh tegernseer landstrasse 85 d-81539 mnchen, germany phone: +49/89/693643-0 fax: +49/89/693643-66 france austriamicrosystems france s.a.r.l. 124, avenue de paris f-94300 vincennes, france phone: +33/1/43 74 00 90 fax: +33/1/43 74 20 98 italy austriamicrosystems italy s.r.l. via leone tolstoi, 64 i-20146 milano, italy phone: +39/0242/36713 fax: +39/0242/290889 switzerland austriamicrosystems switzerland ag rietstrasse 4 ch-8640 rapperswil, switzerland phone: +41/55/220 9000 fax: +41/55/220 9001 usa (west) austriamicrosystems usa, inc. suite 116, 4030 moorpark ave, san jose, ca 95117, usa phone: +1/408/345 1790 fax: +1/408/345 1795 usa (east) austriamicrosystems usa, inc. suite 400, 8601 six forks road raleigh, nc 27615, usa phone: +1/919/676 5292 fax: +1/919/676 5305 united kingdom austriamicrosystems uk, ltd. coliseum business centre, watchmoor park camberley, surrey, gu15 3yl, uk phone: +44/1276/23 3 99 fax: +44/1276/29 3 53 japan austriamicrosystems ag shin yokohama daini, center bldg. 10f 3-19-5, shin yokohama kohoku-ku, yokohama 222-0033, japan phone: +81/45/474 0962 fax: +81/45/472 9845 distributors & representatives austriamicrosystems ag is represented by distributors in the following countries. please contact your nearest regional sales office for the distributor address: spain, israel, korea, hong-kong, taiwan, malaysia, singapore, india, brazil application support please contact your local sales office or your distributor.

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