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Data Sheet AS2540 austriamicrosystems

Revision 3.1 Page 1 of 18

austriamicrosystems

General Descript ionThe AS2540 is a CMOS integrated circuit thatincorporates a speech circuit (line-adaptation, 2/4-wireconversion, separate Rx- and Tx-amplifiers for handsetand modem), MF dialler, ring frequency detector, ringmelody generator and a two wire serial interface. Itshall act as an a/b-line-powered device in order tointerface a main-powered CPU to the analoguetelephone line.

AS2540 can operate in a so-called mainpower modeand in a backup mode. During mainpower mode, awatchdog timer is running on AS2540, which has to bereset via the serial interface, which is connected to theCPU through opto-couplers. During backup mode (=The main-power failure or SW engine problem),AS2540 can operate as an independent basic MFdialler (digits 0-9*#)

Appl icat ions- 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

ROH

ROT

M1M2

TIT

AGND

LineLI

RISTB

CS

CI

DPn

C1C2C3

R1R2

MODE

RFD

-2dB

+ 6dB

+ 2dB

Mask

DTMF-generator

DIALLER UART

STIT

SRO

H

SRO

T

SMUT

E

Dial

Digi

t

SMAS

K

SDPn

MO

RxD

TxD

VDD

EHS

MHS

VSS

OSC

Main Power ModeLS

ROH

ROT

M1M2

TIT

AGND

LineLI

RISTB

CS

CI

DPn

C1C2C3

R1R2

MODE

RFD

-2dB

+ 6dB

+ 2dB

Mask

DTMF-generator

DIALLER UART

STIT

SRO

H

SRO

T

SMUT

E

Dia

lD

igit

SMAS

K

SDPn

MO

RxD

TxD

VDD

EHS

MHS

VSS

OSC

Backup Mode

Remote Control led Single-Chip-Telephone

AS2540 DATA SHEET (PRELIMINARY)

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Pin Descript ionPin # Symbo l Funct ion

15 RFD Ring Frequency DiscriminationSchmitt trigger input for ring frequency discrimination. Disabled during off-hook.

7 LS L ine Current Sense InputInput for sensing the line current

5 LI L ine InputInput used for power extraction and line current sensing

6 RI Receive InputInput for ac-separated receive signal

2 STB Side Tone Balance InputInput for side tone cancellation network

3 CS Current Shunt Control OutputN-channel open drain output to control the external high power shunt transistor for synthesising ac- anddc- impedance, modulation of line voltage and shorting the line during make periods of pulse dialling

8 CI Complex Impedance InputInput pin for the capacitor to program a complex impedance

16 DPn Dial Pulse OutputOpen drain output pulls low during break periods of pulse dialling and flash

17 EHS Electronic Hook SwitchSchmitt Trigger Input to detect an electronic off-hook.

18 MHS Manual Hook SwitchSchmitt Trigger Input to detect a manual off-hook.

19 MODE DTMF Level Selection-4/-6dBm —> DLS open-6/-8dBm —> DLS-r1-8/-10dBm —> DLS-r2

L ine Loss Compensation Select Pin45mA-75mA —> LLC open20mA-50mA —> LLC-r3None —> LLC-r4

28 MO Ring Melody OutputPDM output of the ring melody generator.

11 VDD Voltage Drain DrainPositive Power Supply

4 VSS Voltage Source SourceNegative Power Supply

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Pin # Symbo l Funct ion

25 OSC Oscillator InputInput for ceramic resonator 3.58MHz.Recommended type: Murata CSA 3.58MG312AM or compatible

12 AGND Analogue GroundSpecial ground for the internal amplifiers

26 RXD Receive Data InputSchmitt trigger input to serial interface

27 TXD Transmit Data OutputOpen drain output from serial interface

2021

R1R2

Keyboard Rows

222324

C1C2C3

Keyboard Columns

10 ROT Receive Output to TransformerOutput for driving a transformer with an ac impedance larger than 10kΩ

1 TIT Transformer Input from TransformerSingle ended input for transformer

9 ROH Receive Output to HandsetOutput for driving a dynamic earpiece with an impedance from 150Ω to 300Ω

1314

M2M1

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Funct ional Descr ipt ion

Modes of operat ionThere are 4 possible modes:

Id le ModeManual 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 interfaceis not possible.

Ring ing ModeAS2540 is supplied via the ring capacitor and externalpath, manual hook -switch and electronic hook-switch isopen (MHS ∩ EHS = logical 0), the oscillator is running, avalid incoming ringing is signalled via the serial interface tothe CPU. If the CPU does not reply the AS2540 switchesinto backup mode and sends a ring melody to the MOoutput.

Backup ModeManual hook-switch and/or electronic hook-switch is closed(MHS ∪ EHS = logical 1), AS2540 is supplied with linecurrent, the oscillator is running, the keyscan is enabledand the handset path is switched on, signalling via theserial interface is possible. After AS2540 has starteddialling in backup mode, he must not be interrupted anymore in order to ensure consistent dialling. A modetransition BM -> MPM is only possible before AS2540 hasstarted dialling digits independently.

Main Power ModeManual hook-switch and/or electronic hook-switch isclosed, AS2540 is supplied with line current (MHS ∪ EHS= logical 1), the oscillator is running, the keyscan isdisabled, AS2540 is controlled via the serial interface,handset path or monitor path or modem path is on,signalling via the serial interface is possible.

Selec t Operat ion ModeCommand Message Swi tches ON Swi tches OFF<SetHandsetPath> SROH SROT & STIT<SetModemPath> SROT & STIT<SetMonitorPath> SROH & SROT STIT

Example Main Power Mode

LS

ROH

ROT

M1M2

TIT

AGND

LineLI

RISTB

CS

CI

DPn

C1C2C3

R1R2

MODE

RFD

-2dB

+ 6dB

+ 2dB

Mask

DTMF-generator

DIALLER UART

STIT

SRO

H

SRO

T

SMUT

E

Dial

Digi

t

SMA

SK

SDPn

MO

RxD

TxD

VDD

EHS

MHS

VSS

OSC

Start -up in backup modeAs soon as AS2540 is supplied with line current, theexternal Vdd capacitor will be charged up via the LI andVDD pin and after the Vdd voltage has reached theoperating level, the handset path of the speech circuit isswitched on. This off-hook status is also signalled to theinternal logic via the MHS or EHS pin in order to start thepinscan and subsequently set the country specific modes.Additionally a <LineEvent> message is sent to the CPU.

Star t -up in r ing modeWhen a ringing signal is applied to the line, Vdd of AS2540is charged up via an external path. After Vdd has reachedthe operating voltage the oscillator starts and AS2540discriminates the ring frequency. After a valid ringfrequency is applied on the RFD pin, the logic sends a<LineEvent> message is sent to the CPU and a watchdogtimer is started. When the <LineEvent> message is not quitby the CPU before the watchdog timer has finished thecountdown, AS2540 changes into backup mode and sendsout a melody via the MO pin.

DC condi t ionsThe normal operating mode is from 15mA to 100mA. Anoperating mode with reduced performance is from 5mA to15mA. In the line hold range from 0mA to 5mA the deviceis in a power down mode and the voltage at LI is reducedto a maximum of 3.5V

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The DC characteristic is determined by the voltage at LIpin and a 30Ω resistor between LI and LS pin. It can becalculated by the following equation: VLS = VLI + ILine *30Ω . The t.m. voltage at the LI pin is 4.5V. The calculationleads to the following DC resistances: 330Ω to 75Ω at linecurrents from 15mA to 100mA.

2/4 wire convers ionAS2540 has a built-in dual Wheatstone bridge with onecommon ground. This provides a maximum ofindependence of AC impedance and side tone from eachother. One can adapt side tone without changing the ACimpedance.

A1=3.4/3.5 A2=-0.4

AC impedanceThe ac impedance of AS2540 is set to t.m. 1000Ω . Withthe external capacitor at CI pin it can be programmedcomplex. With a parallel impedance at the LS pin it can beprogrammed to 600Ω .

Side ToneA good sidetone cancellation can be achieved by using thefollowing equation:

ZBAL/ZLINE = 10

Transmit pathThe gain of the M1/M2 —> LS transmit path is set to 38dBfor ac-impedance 1000Ω . The input is differential with animpedance of 25kΩ . The soft clip circuit limits the outputvoltage at LS to 2Vp. The attack time is 30μs/6dB and thedecay time is 20ms/6dB.

The gain of the TIT —> LS transmit path is set to 8dB forac-impedance 1000Ω . The input is single ended with animpedance of 25kΩ . The soft clip circuit is not active forthis input. The dynamic range of this path is 2.5Vp at LS.

Receive pathThe gain of the LS —> ROH receive path is set to 2dB forac-impedance 1000Ω . The receive input is the differentialsignal of RI and STB. During DTMF dialling a MF comforttone is applied to ROH which is -30dB relative to the linelevel. The soft clip circuit limits the output voltage at ROHto 1Vp. It prevents harsh distortion and acoustic shock.

The gain of the LS —> ROT receive path is set to 0dB forac-impedance 1000Ω . The receive input is the differentialsignal of RI and STB. The soft clip circuit is not active forthis output.

ModescanThe DTMF-level on the line and the function of the line losscompensation can be selected with the connection of theMODE-pin to the keyboard matrix. The MODE-pin isscanned once after each OFF-Hook transition.

R1 1

PINC1

2 3R2 4 5 6

7 8 9

* 0 #

PINC2

PINC3

PINR1

PINR2

PINMODE

c1 C2 C3

C3 C2 C1 R2 R1 LLC Dtm f Level

45mA-75mA -6dBm

X XX 45mA-75mA -8dBm

XX 45mA-75mA -10dBm

XX 20mA-50mA -6dBm

XX 20mA-50mA -8dBm

X XX 20mA-50mA -10dBm

X XX No LLC -6dBm

X XX No LLC -8dBm

X X XX No LLC -10dBm

X indicates connection to pin mode

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Ser ial in ter faceThe 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

XMSB

X d5 d4 d3 d2 d1 1LSB

d7 d6 d5 d4 d3 d2 d1 d0 DTMF-d ial message Notes

x x 0 1 0 1 00 1 Digit 0 Starts DTMF dialling of digit










x x 0 1 0 1 11 1 Digit * Starts DTMF dialling of digit

x x 0 0 0 0 00 1 Digit # Starts DTMF dialling of digit

x x 0 1 1 0 00 1 Digit A Starts DTMF dialling of digit

x x 0 1 1 0 11 1 Digit B Starts DTMF dialling of digit

x x 0 1 1 1 00 1 Digit C Starts DTMF dialling of digit

x x 0 1 1 1 11 1 Digit D Starts DTMF dialling of digit

x x 1 0 0 0 00 1 KeyReleased Stops Dialling

d7 d6 d5 d4 d3 d2 d1 d0 Pin -Con t ro l message Notes

x x 1 0 1 1 00 1 SetDPn_HIGH Release pin Dpn (open drain)

x x 1 0 0 0 11 1 SetDPn_LOW Force pin DPn = VSS

x x 1 0 0 1 00 1 SetMask Force LI-Voltage to 1.2 V

x x 1 0 0 1 11 1 ResetMask

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d7 d6 d5 d4 d3 d2 d1 d0 Pin -Con t ro l message Notes

x x 1 0 1 1 11 1 SetTestmode FOR FACTORY TEST ONLY

x x 1 0 1 0 00 1 MuteON Mute Transmit path

x x 1 0 1 0 11 1 MuteOFF

d7 d6 d5 d4 d3 d2 d1 d0 Path -Con tro l message Notes

x x 1 1 0 0 11 1 SetHandsetPath

x x 1 1 1 0 11 1 SetMonitorPath

x x 1 1 0 1 00 1 SetModemPath

x x 1 1 0 0 00 1 RequestStatus AS2540 sends Status information

x x 1 1 0 1 11 1 reserved <LineEvent>




Tx messages

<Ack> message

<Ack> message fo rmat fo r <Reques tStatus>

b7MSB

b6 b5 b4 b3 b2 0 1LSB

b7 b6 b5 b4 b3 b2 b1 b0 Status Remark

11 0 1 valid ring signal detected

00 0 1 no ring signal

11 0 1 manual hook switch - off-hook (pin MHS)

00 0 1 manual hook switch - on-hook (pin MHS)

11 0 1 electronic hook switch - off-hook (pin EHS)

00 0 1 electronic hook switch - on-hook (pin EHS)

Status of AS2540

0 0 00 0 1 no LLC comparator .....................

0 0 11 0 1 LLC comparator 20mA (45mA) ...






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11 1 1 1 10 1 valid ring signal detected

00 1 1 1 10 1 no ring signal

11 1 1 1 10 1 manual hook switch - off-hook (pin MHS)

00 1 1 1 10 1 manual hook switch - on-hook (pin MHS)

11 1 1 1 10 1 electronic hook switch - off-hook (pin EHS)

00 1 1 1 10 1 electronic hook switch - on-hook (pin EHS)

Status of AS2540

ProtocolL ine EventsAS2540 has 3 inputs, namely MHS (Manual Hook Switch),EHS (Electronic Hook Switch) and RFD (Ring FrequencyDetector), which sense the state of the two hook-switchesand discriminate an applied ring signal. The MHS isconnected to the manual hook switch which is operated bythe handset and the EHS is connected to an electronichook switch which is operated by the CPU. Whenever thestate of these inputs changes, AS2540 immediately sends<LineEvent> to the CPU after a debounce time. MHS andEHS up-debouncing lasts 15ms, down-debouncing lasts85ms. RFD start to discriminate the ring frequencyimmediately but will send a <LineEvent> message with adelay of 102ms. A status change of MHS and EHS pinsmust not change the momentary selected path of thespeech network.

The <LineEvent>-message is sent without consideration ofthe momentary activities of AS2540 in order to meet PTTrequirements (e.g. line break signalling). The code for the<LineEvent>-message is chosen with regard to theminimum current consumption in order to operate theoptocouplers. Pending <Ack>-messages will be queuedafter the <LineEvent>-message. An already runningtransmissions of <Ack> will not be interrupted and<LineEvent> will be sent afterwards in this case.

- Mode t r ans i t ions Id le →→→→ BM →→→→ MPM →→→→ Id l eAS2540 always starts up in backup mode and is preparedto act like an independent dialler. <LineEvent> is sent tothe CPU and AS2540 remains in back-up mode until any

valid message is sent from the CPU. This makes sure thata non-operable CPU does not disable basic diallingfunctions.

- Mode t r ans i t ion MPM →→→→ BMA watchdog timer is started after <LineEvent> and is resetwhenever AS2540 receives a message from the CPU viathe serial interface. If the CPU does not send any furthervalid message within 2400ms, AS2540 goes back intoback-up mode, immediately locks the UART and remains inbackup mode till next on-hook.

Dial l ing Func t ions

DTMFThe DTMF generator provides 8 frequencies (in Hz):

111697+1209

222697+1336

333697+1477

444770+1209

555770+1336

666770+1477

777852+1209

888852+1336

999852+1477

***941+1209

000941+1336

###941+1477

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The MF output levels are set to -4/-6dB which should allowefficient backup dialling under all line conditions. TheTONE/PAUSE ratio is 90ms/90ms. The preemphasisbetween low group and high group frequencies is t.m.2.6dB.

FLASH t im ingCPU can control the DPn pin and the MASK-mode ofAS2540 via serial interface.

Tone Ringer

Ring f requency d isc r im inat ionThe ring frequency discrimination assures that only signalswith a frequency between 13Hz and 70Hz are regarded asvalid ring signals.

When a valid ring signal is present for 102ms continuously,the ring melody generator is activated and remains activeas long as a valid ring signal is present.

Once the ring melody generator has started, the ring signalis continuously monitored and the ring melody generator isinstantly turned off according to the momentary presenceof a valid or invalid ring signal until next off-hook.

Toner r inger melodyThe 3 basic melody frequencies are:- F1=880Hz- F2=1067Hz- F3=1333Hz

The repetition rate is set to 4 which means that thesequence of F1, F2, F3, F1, F2, F3 is repeated 4 timeswithin a second.

Keyboard connect ions

R1 1

PINC1

2 3R2 4 5 6

7 8 9

* 0 #

PINC2

PINC3

PINR1

PINR2

PINMODE

c1 C2 C3

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Electr ical character ist icsElectrical characteristics are measured with the Test Circuit application. Typical mean values will not be tested.

Absolute maximum rat ings

Positive Supply Voltage -0.3V <= VDD <= 7V

Input Current +/- 25mA

Input Voltage (LS) -0.3V <= Vin <= 10V

Input Voltage (LI, CS) -0.3V <= Vin <= 8V

Input Voltage (STB, RI) -2V <= Vin <= VDD+0.3V

Digital Input Voltage -0.3V <= Vin <= VDD+0.3V

Electrostatic Discharge (HBM 1.5kΩ-100pF) +/- 800V

Storage Temperature -65°C to +125°C

Recommended operat ing condi t ions

Supply Voltage (generated internally) 3.6V <= VDD <= 5V

Oscillator FrequencyResonator Murata CSA 3.58MG312AM 3.58MHz

Operating Temperature -15°C to +60°C

DC character is t icsILine=15mA w/o operation of SI through optocouplers, unless other specified

Symbo l Parameter Cond i t ions Min Typ Max Un i t s Test

IDD Operating Current Speech ModeSpeech Mode with SIMF DiallingLD Dialling, VDD=2.5VRing Mode, VDD=2.5V

354

200300

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IOL Output Current, Sink CS,DPn, MOTXD

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110

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Transmit character is t ics


AMTX Transmit GainM1/M2 —> LS

ZAC(syn)=1000Ω +36.5 +38 +39.5 dB Y

ATTX Transmit GainTIT —> LS

ZAC(syn)=1000Ω +6.5 +8 +9.5 dB Y

THD Distortion VLS=0.25VRMS 2 % Y

VAGC Soft Clip LevelM1/M2 —> LS at LS

2.0 VP N

ASCO Soft Clip OverdriveM1/M2

20 dB N

ZIN Input ImpedanceM1/M2 - TIT

20 kΩ N

VNO Noise Output VoltageLS

TAMP=25°C -72 dBmp Y

RL Return Loss ZAC(syn)=1000Ω 18 dB Y

Receive character is t ics


AHRX Receive GainLS —> ROH

ZAC(syn)=1000Ω +0.5 +2 +3.5 dB Y

ATRX Receive GainLS —> ROT

ZAC(syn)=1000Ω -3.5 -2 -0.5 dB YY

THD Distortion VLS=0.25VRMS 2 % Y

VAGC Soft Clip LevelROH

1 VP N

ASCO Soft Clip OverdriveROH

10 dB N

VNO Noise Output VoltageROH - ROT

TAMP=25°C -72 dBmp Y

ZIN Input Imp. RI 8 kΩ N

ST Sidetone VRI<=0.25VRMS 24 dB Y

RL Return Loss ZAC(syn)=1000Ω 18 dB Y

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DTMF character is t ics


VMFlow Tone Level Low GroupLS

-6 dBm Y

ΔVL-H Preemphasis L-H 2.0 2.6 3.2 dB Y

UFC Unwanted FrequencyComponents

300Hz - 4.3kHz4.3kHz - 7kHz7kHz - 10kHz10kHz - 14kHz14kHz - 28.5kHz28.5kHz – 40kHz

-40-46-52-58-70-80

dBmdBmdBmdBmdBmdBm

YYYYYY

Δf 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

VCT-H Comfort Tone (DTMF) ROH rel. to LS -30 dB N

Ringer character is t ics


f1 Frequency 1 770 800 830 Hz Y

f2 Frequency 2 1025 1067 1110 Hz Y

f3 Frequency 3 1280 1333 1385 Hz Y

fMIN Min. Det. Frequency 12 13 14 Hz Y

fMAX Max. Det. Frequency 68 70 75 Hz Y

tDT Detection Time Initially 102 ms N

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tRXD-r RXD signal rise time Vdd=4V,RPull-up=1.2kΩ 30 μs N

tRXD-f RXD signal fall time 30 μs N

Vcomp Input comparator level atRXD

Vdd/2 V N

BRRXD RXD baud rate +/-2% 9600 bps N

BRTXD TXD baud rate +/-2% 9600 bps Y

Miscel laneous


tD Key Debouce Time 15 ms N

ttime-out Watch-dog Timer 2400 ms N

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Test Circui t

R7

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PackagingThe device is available in the packages outlined below (notto scale). For exact mechanical package dimensionsplease see austriamicrosystemsAG packaging information.

28-pin plastic SOIC (suffix T)

Max. Body Length 18.1mm / 713milMax. Body Width 7.6mm / 300milPitch 1.27mm / 50mil

Pin-out

1 – TIT MO – 282 – STB TxD – 273 – CS RxD – 264 – VSS OSC – 255 – LI C3 – 246 – RI C2 – 237 – LS C1 – 228 – CI R2 – 219 – ROH R1 – 20

10 – ROT MODE – 1911 – VDD MHS – 1812 – AGD EHS – 1713 – M1 DPn – 1614 – M2 RFD – 15

Marking

YYWWAAAAS2540Austria

YY year of productionWW calendar week of productionAAA ammsAG assembly ID

Ordering InformationNumber Package Descr ip t ion

AS2540T SOIC28 plastic small outline package -28 leads (suffix T)

AS2540Q Dice-on-Foil dice

Devices sold by austriamicrosystems AG are covered bythe warranty and patent identification provisions appearingin its Term of Sale. austriamicrosystems AG makes nowarranty, express, statutory, implied, or by descriptionregarding the information set forth herein or regarding thefreedom of the described devices from patent infringement.austriamicrosystems AG reserves the right to changespecifications and prices at any time and without notice.Therefore, prior to designing this product into a system, itis necessary to check with austriamicrosystems AG forcurrent information. This product is intended for use innormal commercial applications. Applications requiringextended temperature range, unusual environmentalrequirements, or high reliability applications, such asmilitary, medical life-support or life-sustaining equipmentare specifically not recommended without additionalprocessing by austriamicrosystems AG for eachapplication.

CopyrightCopyright © 1997-2002, austriamicrosystems AG, SchlossPremstaetten, 8141 Unterpremstaetten, Austria-Europe.Trademarks Registered ®. All rights reserved. The materialherein may not be reproduced, adapted, merged,translated, stored, or used without the prior written consentof the copyright owner.

The information furnished here by austriamicrosystems AGis believed to be correct and accurate. However,austriamicrosystems AG shall not be liable to recipient orany third party for any damages, including but not limitedto personal injury, property damage, loss of profits, loss ofuse, interruption of business or indirect, special, incidentalor consequential damages, of any kind, in connection withor arising out of the furnishing, performance or use of thetechnical data herein. No obligation or liability to recipientor any third party shall arise or flow out ofaustriamicrosystems AG rendering of technical or otherservices.

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– 22– 22mR2 – 21– 21amR1 – 20R1 – 2amMODE –ODE –aSSaAG currecur

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Contact

Headquartersaustriamicrosystems AGCommunications Business UnitA 8141 Schloss Premstätten, AustriaT. +43 (0) 3136 500 0F. +43 (0) 3136 525 01www.austriamicrosystems.com

Sales Off ices

Germanyaustriamicrosystems Germany GmbHTegernseer Landstrasse 85D-81539 München, GermanyPhone: +49/89/693643-0Fax: +49/89/693643-66

Franceaustriamicrosystems France S.a.r.l.124, Avenue de ParisF-94300 Vincennes, FrancePhone: +33/1/43 74 00 90Fax: +33/1/43 74 20 98

Italyaustriamicrosystems Italy S.r.l.Via Leone Tolstoi, 64I-20146 Milano, ItalyPhone: +39/0242/36713Fax: +39/0242/290889

Swi t zer landaustriamicrosystems Switzerland AGRietstrasse 4CH-8640 Rapperswil, SwitzerlandPhone: +41/55/220 9000Fax: +41/55/220 9001

USA (west )austriamicrosystems USA, Inc.Suite 116, 4030 Moorpark Ave,San Jose, CA 95117, USAPhone: +1/408/345 1790Fax: +1/408/345 1795

USA (east )austriamicrosystems USA, Inc.Suite 400, 8601 Six Forks RoadRaleigh, NC 27615, USAPhone: +1/919/676 5292Fax: +1/919/676 5305

Uni ted Kingdomaustriamicrosystems UK, Ltd.Coliseum Business Centre, Watchmoor ParkCamberley, Surrey, GU15 3YL, UKPhone: +44/1276/23 3 99Fax: +44/1276/29 3 53

Japanaustriamicrosystems AGShin Yokohama Daini, Center Bldg. 10F3-19-5, Shin YokohamaKohoku-ku, Yokohama 222-0033, JapanPhone: +81/45/474 0962Fax: +81/45/472 9845

Distr ibutors & Representat ivesaustriamicrosystems AG is represented by distributors inthe following countries. Please contact your nearestregional sales office for the distributor address:

Spain, Israel, Korea, Hong-Kong, Taiwan, Malaysia,Singapore, India, Brazil

Appl icat ion SupportPlease contact your local sales office or your distributor.

ams A

GRaleiPhone: PhoneFax: +1/91ax: +1/9

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tzerland AGerland AG

wil, SwitzerlandSwitzerland220 9000220 900

/220 90010 900

A (west )t )austriamicrosysteaustriamicrosysteSuite 116, 403Suite 116, 403San Jose, San JoPhone: ne:

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tngdomdommicrosystems UKosystems UK

seum Business Cm Business Camberley, Surreberley, SurPhone: +44/12Phone: +44/Fax: +44/1Fax: +44/1

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