AS2533P Austria Mikro Systeme International AG, AS2533P Datasheet
AS2533P
Related parts for AS2533P
AS2533P Summary of contents
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... Data Sheet Austria Mikro Systeme International AG Key Features Line/speech circuit, LD/MF repertory dialler and tone ringer on one 28 pin CMOS chip Operating range from 13 to 100 mA (down with reduced performance) Soft clipping to avoid harsh distortion Volume control of receive signal Line loss compensation selectable by pin option Low noise (max ...
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Data Sheet Pin Description Pin # Symbol Function 23 M1 Microphone Inputs 24 M2 Differential inputs for the microphone (electret Receive Output This is the output for driving a dynamic earpiece with an impedance of 140 to 300 ...
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Data Sheet Pin Description cont´d Pin # Symbol Function 12 MODE Signalling Mode Select Input Mode pin Open Row 1 Row 2 Row 3 Row 4 Row 5 Row 6 Row 7 During temporary MF: 82/160 Keyboard ...
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Data Sheet Keyboard Connections Key closure, R max kohm ON Key open, R min Mohm OFF ...
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Data Sheet Keyboard Connections Continued ...
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Data Sheet The microphone input is differential with an input impedance The soft clip circuit limits the output voltage (see figure 12). The attack time is 30 s/6 dB and the decay ...
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Data Sheet The centrex keys are not stored in the RAM, and subsequently entered digits are buffered in FIFO. Last Number Redial LNR is a facility that allows resignalling of the last manually dialled number without keying in all the ...
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Data Sheet DTMF The DTMF generator provides 8 frequencies, namely: Low group Digit 1-2-3-A 697 Hz Digit 4-5-6-B 770 Hz Digit 7-8-9-C 852 Hz Digit * -0-# -D 941 Hz High group Digit 1-4-7- * 1209 Hz Digit 2-5-8-0 1336 ...
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Data Sheet Typical Characteristics of Line Loss Compensation Fig. 4 (dB) Tx Gain 35 34 LLC = 800 600 LINE -10 dBm Fig. 5 (dB) ...
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Z BAL ( LINE STB RI 300 SYN (970 ) LLC & VOLUME COMFORT – 26dB + Z LINE DTMF Z 30 REF + – 12dB + PRIVACY ...
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Data Sheet Typical Application Complex Impedance (270 + 750 // 150 nF) Figure 9 Only the components necessary for presenting the complete functions of the AS253X are included. The external components might change to comply with various national PTT regulations ...
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Data Sheet Operating Procedures Procedure Principles 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 - ...
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Data Sheet Programming Tone Ringer (not AS2534E) MR Storing Numbers Digit Repetition Rate 1 1 time (slow time (slow time (slow times 5 4 times 6 4 times (default times (fast) 8 ...
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Data Sheet Temporary MF When MODE pin = row 5, pressing the * key also transmits the tone by MF select. The T/P key (not AS2535) can be used alternatively to the * key. FIFO Pressing any other key does ...
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Data Sheet Storing Numbers (not AS2534) # Programming Tone Ringer Melodies Entries (0- LNR, R1, R2, R3) will be written directly into the selected memory location Rev. 7 Key entries different to the procedure will be ...
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Data Sheet Automatic Dialling Rev M1- Postdialled digits are not stored but buffered in FIFO 16 AS2533...6 LNR July 1998 ...
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Data Sheet Timing Diagrammes LD Dialling MUTE MASK HS/DPN t IDP t PDP LD Dialling With Access Pause MUTE MASK HS/DPN t IDP t PDP MF Dialling MUTE MASK HS/DPN TONE t TD Continues.... Rev ...
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Data Sheet Flash MUTE MASK HS/DPN Repeat Dialling (not AS2535) RP key MUTE DIALLING HS/DPN Power Down Rev PFP Number engaged connection AS2533... New t ...
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Data Sheet Electrical Characteristics Absolute Maximum Ratings Positive Supply Voltage .................................................................................................................. -0.3V Input Current ............................................................................................................................................... Input Voltage (LS) ......................................................................................................................... -0.3V Input Voltage (LI, CS) ...................................................................................................................... -0.3V Input Voltage (STB, RI) ......................................................................................................... -2V Input Voltage (MO) ...................................................................................................................... -0.3V Digital Input Voltage ...
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Data Sheet AC Characteristics ( mA 800 Hz unless otherwise specified) LINE Symbol Parameter T x Transmit A Gain, Transmit TX A Variation with Frequency TX/F THD Distortion V Soft Clip Level AGC A Soft Clip ...
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Data Sheet AC Characteristics (cont´d) (I Symbol Parameter Keyboard t Key Debounce Time D HS/DPN Input t Low to High Debounce HS-L t High to Low Debounce HS Frequency deviation V MF Tone Level (Low ...
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Data Sheet Symbol Parameter t Flash Duration 1 FD Flash Duration 2 Flash Duration 3 t Post Flash Pause PFP t Access Pause AP t Repeat Break Time RP Tone Ringer V Melody Output MO t Melody Delay MD F1 ...
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Data Sheet Test Circuit AS253x Rev. 7 MULTI-STANDARD SINGLE CHIP TELEPHONE Figure 10 23 AS2533...6 July 1998 ...
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Data Sheet Characteristic Curves (Typical) Fig. 11 Receive Soft Clipping and Distortion 1,2 soft clipping (Vp) VRO 1,0 Line Current 0,8 Frequency: 800 Hz Tamb Typically 0,6 0,4 0,2 0,0 0,00 0,25 0,50 0,75 1,00 1,25 ...
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... Austria Mikro Systeme/Thesys for each application. Copyright © 1995-8, Austria Mikro Systeme International AG, Schloss Premstätten, 8141 Unterpremstätten, Austria. 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 ...