austriamicrosystems AG is now ams AG The technical content of this austriamicrosystems datasheet is still valid. Contact information: Headquarters: ams AG Tobelbaderstrasse 30 8141 Unterpremstaetten, Austria Tel: +43 (0) 3136 500 0 e-Mail: [email protected] Please visit our website at www.ams.com austriamicrosystems Multi-Standard CMOS Telephone IC for Basic Telephones AS2533-36 DATA SHEET - The AS253x is a CMOS integrated circuit that contains all the functions needed to build a high performance electronic telephone set with basic features. - - - Dialler - The versatility of the circuit is provided by pin options and a few external components. This allows fast time-to-market and easy adaptation to different PTT requirements. A unique EMI performance has been achieved due to the consequent use of CMOS amplifiers. - Ringer - Key Features - Line Interface and Speech Circuit - LD/MF dialing and mixed-mode dialing 31 digit last number redial (LNR) 4 direct/10 indirect (AS2533/36), 12 direct (AS2535) Repeat dialing by busy or engaged (not AS2535) Confidence tone during memory programming and mute Notepad memory function Pause key for access pause or wait function 3 flash timings, 100 ms, 280 ms and 375/600 ms Sliding cursor protocol with comparison am lc s on A te G nt st il The device is available in 4 versions (pin-compatible) with different features ranging from LNR only (last number redial) to 4 direct (one-touch) memories and 10 indirect (two-touch) memories. The sliding cursor procedure makes the LNR function easy to use under various PABX systems. - lv The AS253x incorporates a line interface, a speech circuit, a dialler and ringer. It is a real single-chip / single-die IC with 28 pins. It allows either package mounting or chip-onboard mounting. - Rx and Tx soft clipping to avoid harsh distortion Real or complex impedance (EU compliant) Stabilized supply for dialler and peripherals Automatic line loss compensation Operating range from 13 to 100 mA (down to 5 mA with reduced performance) Unique EMI performance (EU compliant) al id General Description Electronic Rx volume control Electronic microphone mute Microphone amplifier with symmetrical input - Ring frequency discrimination 3-tone melody generator Ring melody selection via keyboard Ring volume selection via keyboard Version available with fixed ring melody and ring volume Package - SOIC 28 or DIE Te ch ni ca Block Diagram Figure 1 Block Diagram Revision 8.10 Page 1 of 25 austriamicrosystems Data Sheet AS2533-36 Pin Description Symbol Function 4 V DD Positive Voltage Supply This is the supply pin for the circuit. 5 A GND A nalog G round This is the analogue ground for the amplifiers. 6 STB S ide T one B alance Input This is the input for side tone cancellation. 7 CI 8 MO C omplex Impedance Pin lv For complex impedance a capacitor should be connected to al id Pin # M elody O utput 9 LLC am lc s on A te G nt st il PDM output of the melody generator for tone ringing with internal open-drain transistor. Hi-Z when not active. L ine L oss C ompensation Select pin for line loss compensation (see also Figure 6 and Figure 7). LLC = A GND : 20 - 50 mA LLC = V DD : 45 - 75 mA LLC = V SS : none. 10 HS/DP H ook Switch Input and D ial P ulse Output This is an I/O that is pulled high by the hook switch when off-hook and an open drain pulls it low during break periods of pulse dialing and flash. 11 OSC OSC illator Input Pin for ceramic resonator (3.58 MHz). Reference: Murata CSTCC3M58GD3346-R0 Murata CSTLS3M58GD3458-B0 MODE Signaling MODE Select Input Mode pin Function Open Dialing inhibited Row 1 LD mode, 10 pps, 33/66 ms Row 2 LD mode, 10 pps, 40/60 ms Row 3 LD mode, 20 pps, 33/66 ms Row 4 LD mode, 20 pps, 40/60 ms Te ch ni ca 12 SMD Lead 13 14 15 16 Revision 8.10 C4 C3 C2 C1 Row 5 LD mode, 10 pps, 33/66 ms, Temp. MF with tone on first * key entry Row 61 MF only, 82/82 ms Row 7 MF only, 82/160 ms During temporary MF: 82/160 ms Keyboard Columns (see key arrangements in Figure 2, Figure 3 and Figure 4) Page 2 of 25 austriamicrosystems Data Sheet AS2533-36 Pin # Symbol 17 18 19 20 R4 R3 R2 R1 21 FCI Function Keyboard Rows (see key arrangements in Figure 2, Figure 3 and Figure 4) F requency C omparator I nput 22 LED LED Output Driver Output for driving an LED that will be flashing when in Program/Mute state. M1 M2 25 CS Microphone Inputs Differential inputs for the microphone (electret). lv 23 24 al id This is a Schmitt trigger input for ring frequency discrimination. Disabled during off-hook. C urrent S hunt Control Output 26 V SS 27 LI am lc s on A te G nt st il This N-channel open drain output controls the external high power shunt transistor for the modulation of the line voltage and for shorting the line during make period of pulse dialing. Negative Power Supply L ine I nput This input is used for power extraction and line current sensing. 28 RI R eceive I nput This is the input for the receive signal. 1 LS L ine Current S ense Input This is the input for sensing the line current. 2 MFL MF L evel Setting A voltage divider connected from this pin to A GND and V SS can be used to set the DTMF level. 3 RO R eceive O utput This is the output for driving a dynamic earpiece with an impedance of 150 to 300 Ω. Selection Overview AS2533 ca Function AS2535 AS2536 0 12 4 0 0 10 yes no yes yes yes yes yes yes yes yes no yes P/M P/M P/M yes no yes yes yes yes yes no yes yes yes yes no yes no AS2534:yes yes yes yes AS2534R: no R3 Flash duration 600 ms 600 ms 600 ms 600 ms The corresponding product (AS2533-36) can be selected via bond-options (see chapter “Bond options” for details). Te ch ni Direct memories (one-key) Indirect memories (two-key) Repeat dialing LNR key Pause insertion by LNR key Pause (PS) key P/M or MT key Tone/Pulse (T/P) key Temporary MF by * key Centrex (A - D) keys Volume (VOL, –/+) keys Volume reset by off-hook Programming of tone ringer AS2534/34R Revision 8.10 4 10 yes yes yes yes P/M yes yes yes yes yes Page 3 of 25 austriamicrosystems Data Sheet AS2533-36 Functional Description (Either VOL or +/– keys) Keyboard Connections Key closure, R ON max. = 1 kΩ C3 C4 R1 PP // M M 11 22 33 R2 44 55 66 77 R3 88 99 00 ** R4 ## RR 11 RR 22 RR 33 LLNNRR VVOOLL ++ −− AA BB CC DD RRPP PPSS TT // PP M M 11 M M 22 M M 33 M M 44 M M RR lv C2 am lc s on A te G nt st il C1 al id Key open, R OF F min. = 1 MΩ C2 C3 C4 PP // M M 11 22 33 44 55 66 77 88 99 00 ** ## RR 11 RR 22 RR 33 LLNNRR VVOOLL ++ −− AA BB CC DD RRPP PPSS TT // PP R1 R2 R3 ca C1 ni Figure 2 Keyboard Connection AS2533/36 Te ch R4 Figure 3 Keyboard Connection AS2534 Revision 8.10 Page 4 of 25 austriamicrosystems Data Sheet AS2533-36 C3 C4 R1 PP // M M 11 22 33 R2 44 55 66 77 R3 88 99 00 ** R4 ## RR 11 RR 22 RR 33 LLNNRR VVOOLL ++ −− lv C2 am lc s on A te G nt st il C1 al id (either VOL or +/– keys) Keyboard Connections continued M M 11 M M 22 M M 33 M M 44 M M 55 M M 66 M M 77 M M 88 M M 99 M M 1100 M M 1111 M M 1122 Figure 4 Keyboard Connection AS2535 The on chip power on reset circuit monitors the supply voltage (V DD ) during off-hook. When V DD rises above approx. 1.2V, a power on reset occurs which clears the RAM. During pulse dialing the speech circuit and other part of the device not operating is in a power down mode to save current. The CS pin is pulled to V SS in order to turn the external shunt transistor on to keep a low voltage drop at the LS pin during make periods. DC Conditions AC Impedance Power On Reset ni ca The normal operating range is from 13 mA to 100 mA. Operating range with reduced performance is from 5 mA to 13 mA (parallel operation). In the operating range all functions are operational. ch At line currents below 13 mA the AS253x provides an additional slope below 4.5V in order to allow parallel operation (see Figure 12). Te The dc characteristic (excluding diode bridge) is determined by the voltage at LI and the resistor R1 at line currents above 13 mA as follows: ZAC = 33 Z1 The dc value of Z1 should be 30 Ω to maintain correct dc performance. Return loss and side tone cancellation can be determined independent of each other. Speech Circuit VLS = VLI + ILINE × R1 The voltage at LI is 4.5V in the normal operating range. Revision 8.10 The ac impedance of the circuit is set by external components. The impedance can be real or complex. The ac impedance is determined as follows: The speech circuit consists of a transmit and a receive path with dual soft clipping, mute, line loss compensation and sidetone cancellation. Page 5 of 25 austriamicrosystems Data Sheet AS2533-36 The gain of the transmit path is 37 dB for 600 Ω line termination from M1/M2 to LS (see test circuit Figure 9). The microphone input is differential with an input impedance of 20 kΩ. Line Loss Compensation The line loss compensation is a pin option. When it is activated, the transmit and receive gains are decreased by 6 dB at line currents from 20 to 50 mA when LLC = A GND and 45 to 75 mA when LLC = high (@ R1 = 30 Ω). The line loss compensation is disabled when LLC = low (see Figure 6 and Figure 7). The soft clip circuit limits the output voltage at LI to 2V PEAK Receive Valid Keys The key scanning is enabled when HS/DPN is pulled high and V DD is above V REF . A valid key is detected from the keyboard by connecting the appropriate row to the column (R ON < 1 kΩ). This can be done using an n x m keyboard matrix with single contacts. Four diodes are used to extend the number of rows (see keyboard arrangement fig. 2). It is also possible to connect a microcontroller to the rows and columns (see application note AN3010). am lc s on A te G nt st il The gain of the receive path is 3 dB for 600 Ω line termination (test circuit Figure 9). The receive input the differential signal of RI and STB. When mute is active during dialing the gain is reduced by > 60 dB. During DTMF dialing a MF comfort tone is applied to the receiver. The comfort tone is the DTMF signal with level that is -30 dB relative to the line signal. Dialing Functions lv (see Figure 11). The attack time is 30 µs/6 dB and the decay time is 20 ms/6 dB. When mute is active, during dialing or after pressing the P/M key, the gain reduced by > 60 dB. al id Transmit The receive gain can be changed by pressing the volume keys. The VOL key gives a +5.4 dB boost and has a toggle function, i.e. repressing the key resets the gain to default. As an alternative the +/– keys can be used. The + key increases the gain by 8.1 dB in 3 steps and the – key decreases the gain by 5.4 dB in 2 steps (total range 13.5 dB). On AS2533/35 the volume is reset to default by next off-hook and on AS2534/36 the volume setting will remain at last setting. A POR will always reset the volume to default. ca The soft clip circuit limits the voltage at the receive output (RO) to 1V PEAK (see Figure 10). It prevents harsh distortion and acoustic shock. ni Sidetone A good sidetone cancellation is achieved by using the following equation: ch Z Line Z 2 = Z BAL Z1 Te The sidetone cancellation signal is applied to the STB input. Z1 Z LI ZB A Z2 P/M and MT Key The P/M key is used to enter the Program/Mute state. Depressing the P/M key mutes the speech circuit and the device is in program state. Repressing the P/M key deactivates the mute and program state (toggle function).The MT key works in similar way, but has no program function. When program/mute is activated, the LED indication is turned on (flashing: 80 ms 'on' and 1 sec 'off'). Dial Mode Selection The default mode (LD or MF) can be selected by the mode pin. When default LD mode is selected, a temporary change to MF can be invoked by pressing T/P key (not AS2535) or the * key (when mode pin = row 5, the MF tone is generated with the first * key entry). The circuit will revert to LD by repression the T/P key (not AS2535) or by pressing the R (R1, R2 or R3) key or by next on-hook. When MF mode is selected by the mode pin, the circuit can not be changed temporary to LD but will remain in MF mode. Centrex Keys (not AS2535) The alphanumeric keys accommodate easy use of centrex services. The A, B, C and D keys are only valid in MF mode (including temporary MF) and are not storable. Pressing one of these keys will invoke the appropriate MF tones to be transmitted. The centrex keys are not stored in the RAM, and subsequently entered digits are buffered in FIFO. Figure 5 Side Tone Balance Revision 8.10 Page 6 of 25 austriamicrosystems Data Sheet AS2533-36 A manually entered number is automatically stored in the LNR RAM. The capacity of the RAM is 31 digits. If a number greater than 31 digits is entered, the LNR facility will be inhibited (until new entries < 32 digits) and further entries will be buffered in FIFO. Storable numbers AS2533/36 AS2534 AS2535 14 0 12 Direct memory keys 4 0 12 Indirect memories 10 0 0 In the on chip RAM, numbers can be stored. Each number can contain up to 21 digits (including pauses). During programming multiple pauses can be inserted by pressing the PS (not AS2535) or the LNR key. Each pause inserted within the first 5 entries will automatically be terminated after 2 seconds whereas pauses inserted after location 5 in a digit string will halt dialing and can be terminated manually by pressing the PS (not AS2535) or the LNR key. The halt function allows in-dialing to an extension on a PABX. am lc s on A te G nt st il Pauses can be inserted by pressing the PS key (not AS2535). Memory arrangement al id The current content of the RAM is overwritten by new entries. Memory Keys (not AS2534) The keys M1 to M12 are direct memory access keys and the MR key (AS2533/36 only) is used for abbreviated dialing. lv Last Number Redial LNR is a facility that allows resignalling of the last manually dialed number without keying in all the digits again. The LNR is repeatable after each off-hook. Post dialed digits, i.e. digits manually entered after LNR has been invoked, are not stored in RAM but buffered in FIFO. Repeat Dialing (not AS2535) The last manually dialed number can be repeated without going on-hook by pressing the RP key. If a called number is engaged, pressing the RP key will break the line for 1.6 second (to get a new dial tone) and after a pause the number will be repeated. The repeat function is enabled when prior to pressing the RP key, a number has been dialed, and it can be invoked an unlimited number of times until next on-hook. During the 1.6 second break the device is in power down mode to save current. ni ca Recall Function A recall (R1, R2 or R3 key) activation will invoke a flash (timed loop break), however, the R1 flash is never executed in LD mode. R2 and R3 will be executed independent of the mode. ch If recall is the first entry in a digit string, it will be stored in LNR RAM when digit(s) are entered after the recall. Te If the recall key is depressed after a digit string has been entered or dialed out, the recall will not be stored but buffered in the FIFO together with subsequently entered digit. If pressing the recall key is not followed by digit entries, the LNR RAM remains intact. After a recall a 270 ms pause will automatically be Revision 8.10 Example (45678–123 is stored in M1, where – is a pause/wait and 123 the extension number): off-hook, wait for dial tone press M1 (45678 is dialed out) await dial tone from called PABX press PS or LNR (123 is dialed out) Memory dialing is cascadable. However, the content of one memory must be dialed out before a new can be invoked. Sliding Cursor Procedure To accommodate easy and uncomplicated redialing (LNR) behind a PABX, a sliding cursor protocol is implemented. If new entries match the previous RAM contents, pressing the LNR key will dial out the remaining digits. If there is an error in matching, the LNR will be inhibited until next on-hook, and the RAM will contain the new number. Example (LNR content 912345, where 9 is access code): off-hook, wait for PABX dial tone press 9 and wait for external dial tone press LNR (12345 will be dialed out). Tone Generator The tone generator incorporates the DTMF tones, 3 basic frequencies for the tone ringer and pacifier tones. DTMF The DTMF generator provides 8 frequencies, namely: Page 7 of 25 austriamicrosystems Data Sheet AS2533-36 Hz Hz Hz Hz 1209 1336 1477 1633 The procedure is ended by repressing the P/M key. Hz Hz Hz Hz (not AS2535) The MF output level can be set with an external voltage divider on pin MFL. Voltage at pin MFL (2) DTMF Level (Low Grp.) typ. 1.50* V -4.0 dBm 0.878 * A GND 1.317 V -5.2 dBm 0.791 * A GND 1.187 V -6.4 dBm 0.705 * A GND 1.058 V -7.6 dBm 0.620 * A GND 0.930 V -8.8 dBm 0.495 * A GND 0.743 V -10.0 dBm 0.372 * A GND 0.558 V -11.2 dBm 0.290 * A GND 0.435 V -12.4 dBm 0.210 * A GND 0.315 V -13.6 dBm 0.130 * A GND 0.195 V -14.8 dBm V SS 0.000 V (V SS ) -16.0 dBm (Z LINE = 600) *typical MFL values for A GND = 1.5V The preemphasis is 2.6 dB. The MF tones are according to CEPT recommendations. Tone Ringer (Melody/Volume) The three basic frequencies of the melodies are: F1 = 800 Hz, F2 = 1067 Hz, and F3 = 1333 Hz (± 5%). 2 Volume 1 time (50 ms pause) - 16 dB 1 time (50 ms pause) - 7 dB 1 time (50 ms pause) 0 dB (max.) ch 3 Repetition Rate ni 1 ca The repetition rate and the volume of the tone ringer melodies can be programmed by pressing P/M and # followed by a digit as follows: Digit 4 times - 16 dB 5 4 times - 7 dB 6 4 times (default, AS2534R) Te 4 0 dB (max.) 7 10 times 8 10 times - 7 dB 9 10 times 0 dB (max.) 0 None Revision 8.10 Repetition rate means that a sequence of 6 frequencies is repeated 1, 4 or 10 times within 1 second. The sequence of the frequencies is controlled by the sequence register as follows: Sequence F1 F2 F3 F1 F2 F3 … am lc s on A te G nt st il A GND The default setting is digit 6, i.e. after a power on reset the device will start up with repetition rate 4 and maximum volume. If digit 0 is programmed, the tone ringer will be turned off until next off-hook where it will turn back to the last setting before 0. The programmed settings are stored in the on chip RAM. al id 697 770 852 941 lv Low group Digit 1-2-3-A Digit 4-5-6-B Digit 7-8-9-C Digit * -0-# -D High group Digit 1-4-7- * Digit 2-5-8-0 Digit 3-6-9-# Digit A-B-C-D - 16 dB Pacifier Tone By MF dialing the DTMF tones are provided to the earpiece as comfort tone. During programming a key entry is acknowledged by a pacifier tone of 1477 Hz. The level of the pacifier tone is approximately 60 mV at the RO output. The duration is 40 ms after every key entry in program mode. When terminating the program mode with the P/M key an acknowledge tone of 140 ms is provided. An invalid key entry, however, will cause a termination of the program mode indicated by a rejection tone of 4 times 40 ms with 28 ms pauses between the tone bursts. Ring Frequency Discrimination The ring frequency discriminator assures that only signals with a frequency between 13Hz and 70 Hz are regarded as valid ring signals. The time for recognizing a valid ring signal is 1/f seconds, where 'f' is the ring frequency. When a valid ring signal is present for 73 ms continuously, the melody generator is activated and remains active as long as the ring signal is present. Once the melody generator has been started, the ring signal is continuously monitored and the melody generator is instantly turned on or off according to the momentary presence of a valid or invalid ring signal respectively (until next POR or off-hook). Off Page 8 of 25 austriamicrosystems Data Sheet AS2533-36 Typical Characteristics of Line Loss Compensation LLC = AG ND LLC = V DD LLC = V SS f = 800 Hz Z LINE = 600Ω Ω V LS = -10 dBm al id 35 34 33 32 31 30 29 Tx Gain lv (dB) DC Line Current 30 40 50 60 70 80 (mA) am lc s on A te G nt st il 20 Figure 6 Typical Tx Gain Characteristics Line Loss Compensation (dB) +4 +3 +2 +1 0 -1 -2 Rx Gain LLC = V DD LLC = AG ND LLC = V SS f = 800 Hz Z LINE = 600Ω Ω V LS = -10 dBm VOL = 0 dB (neutral) 20 30 DC Line Current 40 50 60 70 80 (mA) Te ch ni ca Figure 7 Typical Rx Gain Characteristics Line Loss Compensation Revision 8.10 Page 9 of 25 austriamicrosystems Data Sheet AS2533-36 Typical Application Complex Impedance (270 W + 750 W // 150 nF) al id Only the components necessary for presenting the complete functions of the AS253x are included. am lc s on A te G nt st il lv The external components might change to comply with various national PTT regulations and to interface to different transducers. Since the AS253x is a component and not a complete system, it can not be approved as a stand alone part by the standard bodies. Hence, full conformance to any standards is depending on the application in which the AS253x is being used, and therefore, approvals by the standard bodies are the responsibility of the customer and austriamicrosystems AG will not have tested the product to meet specific standards. Te ch ni ca For further application information please refer to application note AN2201 . Figure 8 Typical Application Revision 8.10 Page 10 of 25 austriamicrosystems Data Sheet AS2533-36 Programming Procedures When Code 0 (tone ringer off) has been programmed, the device will automatically return to previous setting (different from 0) by next off-hook. Procedure Principles Temporary MF al id The procedure below assumes that the device is operated in puls mode. 1. Go off-hook 2. Press [*] or [T/P] to switch to DTMF mode 3. Press [R] or [T/P] to switch back to PULS mode 4. Got to 2. to switch again to DTMF mode lv The procedures for utilizing the features of the AS253x are optimized out of consideration for the human factor in order to: - meet the user’s expectations - be easy to learn and relearn - not invoke any automatic functions which the user doesn’t expect - protect the user from committing critical errors, e.g. dialing wrong numbers, deleting stored numbers, etc. - be consistent, simple and usable. Mode pin is connected to row 1, 2, 3, 4, or 5. When mode pin = row 5, pressing the [*] key also transmits the tone by MF selected. The [T/P] key (not AS2535) can be used am lc s on A te G nt st il The following chapters describe the operating procedures for the provided features. Pressing an invalid key or key combination during programming will cause the device to abort the program state. Pressing any key combination or sequence which is not described or defined may cause the device to enter a state or mode that does not comply with the expectation of the user. In such cases, any undesired state can be terminated at any time by going on-hook / offhook which will generate a functional reset. Storing Numbers (not AS2534) Up to 14 numbers, each with maximum 21 digits, can be stored into the internal RAM. alternatively to the [*] key. Automatic Dialing The following procedure describes the dialing procedure and the internal sequences: 1. Go off-hook 2. Enter the number by pressing digit, [M1]-[M12], [LNR] or [MR] + digit 3. The number is internally buffed in the FIFO 4. Tone- or Puls-Dialing starts 1. Press [P/M] to enter program mode 5. Wait for connection 2. Enter location (MR + digit 1; or M1 to M12) 6. Got to 2 for entering postdialed digits 3. Enter number - entries (0-9, *, #, PS or LNR, R1, R2, location) Postdialed digits are not stored but buffed in the FIFO. ca R3) will b written directly into the selected memory Press [P/M] to store and exit or go on-hook to abort 5. Go to 1 for storing further numbers ni 4. Programming Tone Ringer ch Three different ringer melodies with three levels each can be programmed. AS2534R cannot be programmed. Press [P/M] to enter program mode 2. Press [#] for ringer programming mode Te 1. 3. Enter Code to select ringer melody and volume(see code table in section Tone Ringer (Melody/Volume) 4. 1 Press [P/M] to store and exit or go on-hook to abort Digit includes 0 – 9 Revision 8.10 Page 11 of 25 austriamicrosystems Data Sheet AS2533-36 Timing Diagrams LD Dialing al id MUTE MASK t IDP tB tB tM t IDP tM t PDP tB tM am lc s on A te G nt st il t PDP lv HS/DPN LD Dialing with Access Pause MUTE MASK HS/DPN MF Dialing tB tM tB t AP tM t IDP t PDP tB tM ni MUTE t PDP ca t IDP ch HS/DPN Te LS Revision 8.10 t TD t ITP t TD t ITP t AP t TD t ITP Page 12 of 25 austriamicrosystems Data Sheet AS2533-36 Flash MUTE HS/DPN t FD t PFP tM tM t FD tM am lc s on A te G nt st il lv tM al id MASK Repeat Dialing (not AS2535) Number engaged RP key MUTE HS/DPN ca DIALLING New connection t RP t AP Te ch ni Power Down Revision 8.10 Page 13 of 25 austriamicrosystems Data Sheet AS2533-36 Electrical Characteristics Absolute maximum ratings Positive Supply Voltage -0.3V < V DD < 7V Input Current ± 25mA -0.3V < V I N < 10V al id Input Voltage (LS) Input Voltage (LI, CS) -0.3V < V I N < 8V Input Voltage (STB, RI) -2V < V I N < V DD +0.3V -0.3V < V IN < +35V lv Input Voltage (MO) Digital Input Voltage -0.3V < V IN < V DD +0.3V ± 1000V Electrostatic Discharge (HBM 1.5kΩ-100pF) -65°C to +125°C am lc s on A te G nt st il Storage Temperature Recommended operating conditions Supply Voltage * (Speech Mode) 3.8V < V DD < 5V Oscillator Frequency (Resonator: Murata CSA 3.58M G312AM) Operating Temperature 3.58 MHz -25°C to +70°C * This voltage is generated internally DC Characteristics (I LINE = 15 mA unless otherwise specified) Parameter Conditions I DD Operating Current Min. Typ. Max. Units Speech mode 3 5 mA MF dialing 4 mA LD dialing, V DD = 2.5V 200 µA Ring mode, V DD = 2.5V 300 µA 0.05 µA ca Symbol I DD0 Retention Current Idle mode, V DD = 2 V, T AMB = 25°C Line Voltage (default) 13 mA < I LINE < 100 mA 4.5 V Output Current, Sink CS, HS/DP, MO V OL = 0.4V 1.5 mA I OL Output Current, Sink; LED V OL = 0.4V 4 mA V IL Input Low Voltage HS/DPN; FCI Te ch I OL ni V LI V IH Revision 8.10 V SS 0.3 V DD V 0.7 V DD V DD V T AMB = 25°C Input High Voltage HS/DPN; FCI T AMB = 25°C Page 14 of 25 austriamicrosystems Data Sheet AS2533-36 AC Characteristics (I LINE = 15 mA; f = 800 Hz unless otherwise specified) Symbol Parameter Conditions Min Tx Transmit Test Circuit Figure 9 A TX Gain, Transmit M1/M2 to LI ∆A TX/F Variation with Frequency f = 500 Hz to 3.4 kHz THD Distortion V LI < 0.25V RMS V AGC Soft Clip Level 2 A SCO Soft Clip Overdrive 20 t A TTACK Attack Time 30 t DE CAY Decay Time 20 Z IN Input Impedance (M1/M2) 20 A MUTE Mute Attenuation Mute activated V NO Noise Output Voltage T AMB = 25°C V IN Max Input Voltage Range Differential (M1/M2) Single Ended 35.1 Typ Max 36.6 38.1 ±0.8 Units dB dB % al id 2 V PEAK dB µs/6 dB ms/6dB lv kΩ 60 dB am lc s on A te G nt st il -72 dBmp ±1 V PEAK ±0.5 V PEAK BJT Output Driver V IN MAX Input Voltage Range (LI) ±2 V PEAK V TX Dynamic Range ±2 V PEAK RL Return Loss ∆Z AC/TEMP Temperature Variation Rx Receive Test Circuit Figure 9 A RX Receive Gain (Vol. default) LI to RO A VOL Volume Gain VOL key +5.4 dBr A VOL Volume Gain –/+ keys -5.4/+8.1 dBr ∆A RX/F Variation with Frequency f = 500 Hz to 3.4 kHz ±0.8 dB THD Distortion V RI < 0.25V RMS V AGC Soft Clip Level V RO = Z RL =1000Ω; T AMB = 25°C 18 0.5 1.5 3 4.5 2 1 dB Ω/°C dB % V PEAK Soft Clip Overdrive t A TTACT Attack Time t DE CAY Decay Time V NO Noise Output Voltage T AMB = 25°C -72 dBmp Unwanted F. Components 50 Hz....20 kHz -60 dBm V RI > 0.8V RMS Input Impedance (RI) ch Z IN ni V UFC ca A SCO 10 dB 30 µs/6 dB 20 ms/6dB 8 kΩ ±2 V PEAK Input Voltage Range (RI) A ST Sidetone Cancellation V IN ST Input Voltage Range (STB) ±2 V PEAK Input Impedance (STB) 80 kΩ Te V IN RI Z IN Revision 8.10 V RI < 0.25V RMS 26 dB Page 15 of 25 austriamicrosystems Data Sheet AS2533-36 AC Characteristics (cont´d) (I LINE = 15 mA; f = 800 Hz unless otherwise specified ) Symbol Parameter Conditions Min Typ Max Units Keyboard Key Debounce Time tD 15 ms ms t HS-L Low to High Debounce Going off-hook 15 t HS-H High to Low Debounce Not LD dialing 210 During LD dialing 270 DTMF Frequency deviation T AMB = 25°C, Note 5 V MF MF Tone Level (Low group) MFL = A GND , T AMB = 25°C V MF MF Tone Level (Low group) MFL Range = V SS … A GND , T AMB = 25°C ∆V L-H Preemphasis Low to High T AMB = 25°C, V UFC Unwanted F. Components Note 3; MFL = V SS - 2.5 -4 ms ms 1.2 % - 5.5 dB lv F al id HS/DPN Input -16…-4 2.4 3.0 dB 300 Hz...5 kHz - 40 dBm 5 kHz...14 kHz - 50 dBm 14 kHz...28.5 kHz - 70 dBm 28.5 kHz...40 kHz - 80 dBm am lc s on A te G nt st il 1.8 dB tT D Tone Duration Note 1&6; Mode=row 6 or 7 80 82.3 85 ms t IT P Inter Tone Pause Note1; Mode=row 6 80 82.3 85 ms t IT P Inter Tone Pause Note 1 & 6; Mode=row 7 150 165 170 ms tT R Tone Rise Time Note 2 5 ms tT F Tone Fall Time Note 2 5 ms LD Dial Rate t DR Mode = row 1, 2 or 5 9.53 10 10.5 pps Mode = row 3 or 4 19.05 20 21 pps Break Period Mode = row 2 57 61.2 63 ms t /B Break Period Mode = row 4 28.5 30.6 31.5 ms t /B Break Period Mode = row 1 or 5 63 66 69 ms t /B Break Period Mode = row 3 31.5 33 34.5 ms Make Period Mode = row 2 38 40.8 42 ms Make Period Mode = row 4 19 20.4 21 ms Make Period Mode = row 1 or 5 31.5 33 34.5 ms t M/ Make Period Mode = row 3 15.7 16.5 17.3 ms t PDP Pre-Digit Pause t M/ Te ch t M/ ni t M/ ca t /B 35 t IDP Inter Digit Pause Mode = row 1, 2, 3, 4 or 5 fosc = 3.58 MHz t HS-H High to Low Debounce During LD dialing t MO Mute Overhang Revision 8.10 780 790 270 ms 800 ms ms tM Page 16 of 25 austriamicrosystems Data Sheet AS2533-36 Symbol Parameter Conditions Min Max Units tF D Flash Duration 1 R1 key 100 102 ms Flash Duration 2 R2 key 270 300 ms Flash Duration 3 R3 key (AS2533/34/35/36) 600 650 ms Note 8 2.0 2.12 sec Post Flash Pause tA P Access Pause t RP Repeat Break Time 274 2.05 1.6 Tone Ringer t MD Melody Delay F1 Frequency 1 F2 Frequency 2 F3 Frequency 3 PDM 10 ms lv Melody Output sec 800 Hz 1067 Hz 1333 Hz am lc s on A te G nt st il V MO ms al id t P FP Typ 1/f + 73ms s note 4 ms Min. Detection Frequency 13 Hz f MAX Max. Detection Frequency 70 Hz Pacifier Tone Program Mode Only fP T Frequency P/M mode, key entry 1477 Hz V RT Level (RO) Key entry 60 mV t RT D-E Duration, Key Entry Valid key entry, prog. 40 ms t RT D-A Duration, Acknowledge Terminate with P/M key 140 ms t RT D-R Duration, Reject Invalid key entry, note 7 4x40 ms t LED-ON "on-time" P/M state 80 ms t LED-OFF Interval P/M state 1 sec V CT Level (RO) -30 dBr t DT Detection Time tT O Detection Time-out f MIN Initial LED Output Comfort Tone (DTMF) ca Relative to LS Te ch ni Note 1: The values are valid during automatic dialing and are minimum values during manual dialing, i.e. the tones will continue as long as the key is depressed. Note 2: The rise time is the time from 10% of final value till the tone amplitude has reached 90 % of its final value. Note 3: Relative to high group. Note 4: The FCI circuit is reset by POR and HS/DPN pulled high (off-hook). After a reset the FCI circuit is in a standby state. A positive edge on FCI will start a 73 ms timer and the frequency discrimination is initiated. Whenever a period of the ring signal is missing, the timer is reset. When a valid ring signal is present for 73 ms, the melody generator is started and is directly controlled by the ring signal. This condition will remain until a new reset. Revision 8.10 Note 5: This does not include the frequency deviation of the ceramic resonator. Note 6: During temporary MF mode. Note 7: An invalid key entry in program mode will invoke a tone sequence with 4 tone bursts of 40 ms and pauses between bursts of 28 ms and abort the program mode. Note 8: Pauses inserted within the first 5 entries of a digit string will be automatically terminated after 2 seconds. Pauses inserted after location 5 can only be terminated manually by pressing the PS or LNR key. Page 17 of 25 austriamicrosystems Data Sheet AS2533-36 Figure 9 Test Circuit Te ch ni ca am lc s on A te G nt st il lv al id Test Circuit Revision 8.10 Page 18 of 25 austriamicrosystems Data Sheet AS2533-36 Characteristic Curves (Typical) 12 [Vp] 9 2,0 7 6 5 0,4 4 THD 3 0,2 2 10 9 [%] soft clipping VLS 8 7 Line Current: 20mA Frequency: 800Hz Tamb: 25°C Typically 1,5 1,0 0,25 0,50 0,75 1,00 1,25 1,50 1,75 THD 0,5 2 0,0 0 50 75 100 7 0 150 125 am lc s on A te G nt st il 8 [mVp] Figure 11 Transmit Soft Clipping and Distortion VLS 6 DC Mask [V] 25 Microphone Input Voltage (M1/M2) Figure 10 Receive Soft Clipping and Distortion 5 4 VLI 3 Typically No AC signals Tamb: 25°C ca 2 ni 1 0 3 1 0 2,00 [Vp] Line Input Voltage (LS) 5 4 1 0,0 0,00 6 Distortion 8 Line Current: 20mA Frequency: 800Hz Tamb: 25°C Typically 0,6 10 Line Output Voltage (LS) 1,0 Distortion Receive Output Voltage (RO) VRO 0,8 2,5 11 [%] al id soft clipping lv 1,2 [Vp] 10 20 30 40 50 60 70 80 90 100 Line Current [mA] Figure 12 DC Mask Te ch 0 Revision 8.10 Page 19 of 25 austriamicrosystems Data Sheet AS2533-36 am lc s on A te G nt st il lv al id Bond Pad Layout Bond Options Product Version AS2533 AS2535 Connection BOND_AS2535 BOND_AS2536 not bonded not bonded BOND_AS2535 BOND_AS2536 not bonded bonded to MODE BOND_AS2535 BOND_AS2536 bonded to MODE not bonded BOND_AS2535 BOND_AS2536 not bonded bonded to MODE ch ni AS2536 (1) (1) ca AS2534/34R Bond Pad Te For deliveries as packaged devices (SOIC28), LNR only is tested, direct and indirect memories are not tested! Revision 8.10 Page 20 of 25 austriamicrosystems Data Sheet AS2533-36 Sizes and Coordinates X [µm] y [µm] 3.190mm x 2.975mm 85µm x 85µm Reference co-ordinate of DIE = DIE center Reference co-ordinate of PAD = PAD center Pad Name Pin No Pads on the Left x [µm] y [µm] al id Die Size: Bond Pad Size: Bond Pad Co-ordinates: Pad Name Pin No 20 Pads on the Right 1052.25 VDD 4 1392.50 -1053.80 R1 -1413.50 796.25 AGND 5 1392.50 -663.00 FCI -1413.50 586.25 STB 6 1392.50 -319.80 -1413.50 226.25 CI 7 1413.50 408.75 -1392.50 -107.75 MO 8 1413.50 683.75 -1392.50 -399.35 LLC 9 -1392.50 -974.20 HS/DP 10 22 M1 23 M2 24 am lc s on A te G nt st il LED -1285.00 OSC -862.10 -1285.00 BOND_AS2535 -696.70 -1285.00 MODE -432.50 -1285.00 BOND_AS2536 -215.10 -1285.00 C4 Pads on the Top 1227.50 1301.25 CS 25 1079.50 1301.25 VSS 26 969.50 1301.25 VSS 26 627.50 1301.25 LI 27 54.50 1301.25 RI 28 -90.50 1301.25 LS 1 13 -449.50 1301.25 MFL 2 -744.50 1301.25 RO 3 Pads on the Bottom -1244.00 21 lv -1413.50 11 12 -1285.00 C3 14 -1285.00 C2 15 379.90 -1285.00 C1 16 677.30 -1285.00 R4 17 842.70 -1285.00 R3 18 1173.30 -1285.00 R2 19 Te ch ni ca -49.70 214.50 Revision 8.10 Page 21 of 25 austriamicrosystems Data Sheet AS2533-36 Vertical Structure of Bond Pads Process CXQ/CXB – FAB B metal 2 metal 1 metal 1 barrier metal 1 lower layer: upper layer: polysilicon lower layer: metal 1 barrier upper layer lower layer 80nm Titanium Nitride 30nm Titanium 270 nm polysilicon am lc s on A te G nt st il Si substrate lv oxide 960 nm AISiCu 98.5% Aluminium 1.0% Silicon 0.5 % Copper 40 nm Titanium 450 nm AISiCu 98.5 % Aluminium 1.0% Silicon 0.5 % Copper 40 nm Titanium al id Layer Specification metal 2 upper layer: polysilicon oxide silicon substrate General Conditions Passivation Marking of Failure Dice Allowed Loss after Assembly 460 nm thermal oxide 200 nm silicon oxynitride + 550 nm silicon nitride Ink Dots, water resistant, Diameter 0.4...1.2 mm < 5% in average < 10% for a single delivery lot Compensation is limited to replacement of the number of defectives exceeding the above allowances. Quantity of dice per delivery lot Only complete wafers can be delivered, therefore the number of good dice delivered may differ from the order quantity up to ±1000 pcs. Dice on wafer or dice on foil must be stored in originally sealed boxes or bags. For storage period - see below. Except for RMA, opened boxes or bags will not be accepted by austriamicrosystems for return ca Storage Conditions ni Conditions for Delivery as Wafer Wafer diameter 200 mm (ams-FAB-B) or 150 mm (XFAB) Wafer thickness 380 ± 20µm (ams-FAB-B) or 640 ± 20µm (XFAB) back grinding, silicon Scribe lane width 100 ± 20µm Packing Max. Storage time in sealed box Wafer Box Ultrapack 200 / sealed in foil bags Te ch Back finishing Revision 8.10 6 month, Tamb = 25 ° C Page 22 of 25 austriamicrosystems Data Sheet AS2533-36 Conditions for Delivery as Dice on Foil, sawn Die thickness 380 ± 20µm Back finishing back grinding, silicon Frame Material: Plastic Size: see figure Frame Position Tolerance Center wafer to frame: ± 4mm Tape al id Angle deviation wafer to frame: ± 8° Orientation wafer to frame: Wafer flat to frame side with kerfs Covering adhesive foil to frame: >5mm Type: PVC with acrylic adhesive Sawing mode: Saw - through mode Sawing width: typ. 60 µm Kerf depth in foil: typ. 20 µm XV -dimension deviation: max.25 µm frame sealed in foil bags filled with nitrogen am lc s on A te G nt st il Sawing conditions lv Thickness: 70 ± 20 µm Packing Storage time In sealed bags 2 months, Tamb = 25 ° C Te ch ni ca Mechanical Drawing of Frame (valid for 200 mm and 150 mm wafer) Revision 8.10 Page 23 of 25 austriamicrosystems Data Sheet AS2533-36 Pin Configuration Packaging 28 Pin SOIC (suffix T) The device is available in the packages outlined below (not to scale). For exact mechanical package dimensions please see austriamicrosystems AG packaging information. 18.1mm / 713mil 7.6mm / 300mil 1.27mm / 50mil am lc s on A te G nt st il Max. Body Length Max. Body Width Pitch lv al id 28-pin plastic SOIC (suffix T) Ordering Information Order Number Package Features AS2533 T AS2533U-ZSO-U 28 pin SOIC in tubes LNR, 4 direct/10 indirect memories AS2533 F pls see bottom rows Dice on foil, sawn LNR, 4 direct/10 indirect memories AS2533 W pls see bottom rows Dice on wafer LNR, 4 direct/10 indirect memories AS2534B T AS2534U-ZSO-U 28 pin SOIC in tubes LNR only, no direct/indirect memories AS2534B F pls see bottom rows Dice on Foil, sawn LNR only, no direct/indirect memories AS2534B W pls see bottom rows Dice on Wafer LNR only, no direct/indirect memories AS2534R T AS2534R-ZSO-U 28 pin SOIC in tubes LNR only, no direct/indirect memories, ringer fixed AS2534R F pls see bottom rows Dice on Foil, sawn LNR only, no direct/indirect memories, ringer fixed AS2534R W pls see bottom rows Dice on Wafer LNR only, no direct/indirect memories, ringer fixed AS2535 T AS2535U-ZSO-U 28 pin SOIC LNR, 12 direct memories AS2535 F pls see bottom rows Dice on Foil, sawn LNR, 12 direct AS2535 W pls see bottom rows Dice on Wafer LNR, 12 direct AS2536 T AS2535U-ZSO-U 28 pin SOIC LNR, 4 direct/10 indirect memories ni ca Device pls see bottom rows Dice on Foil, sawn LNR, 4 direct/10 indirect memories AS2536 W pls see bottom rows Dice on Wafer LNR, 4 direct/10 indirect memories ch AS2536 F AS253xU-ZSW-F Dice on Foil, sawn All versions ( 1) AS253x W AS253xU-ZSW Dice on Wafer All versions ( 1) AS253xR F AS253xR-ZSW-F Dice on Foil, sawn All versions, ringer fixed (1) AS253xR W AS253xR-ZSW Dice on Wafer All versions, ringer fixed (1) Te AS253x F ( 2) (2) Please Note: For wafer delivery or dice-on-foil delivery, the versions can be selected by bond options. (2) For deliveries as packaged devices (SOIC28), LNR only is tested, direct and indirect memories are not tested! (1) Revision 8.10 Page 24 of 25 austriamicrosystems Data Sheet AS2533-36 Contact Information al id austriamicrosystems AG Business Unit Communications A 8141 Schloss Premstaetten, Austria-EU T. +43 (0) 3136 500 0 F. +43 (0) 3136 500 5692 http://www.austriamicrosystems.com For Sales Offices, Distributors and Representatives, please visit: am lc s on A te G nt st il Copyright lv http://www.austriamicrosystems.com/contact Copyright © 1997-2006, 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. All products and companies mentioned are trademarks of their respective companies. Disclaimer ca Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification 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. Te ch ni 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. austriamicrosystems Revision 8.10 – a leap ahead Page 25 of 25