AS2523F AMSCO [austriamicrosystems AG], AS2523F Datasheet
AS2523F
Related parts for AS2523F
AS2523F Summary of contents
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Telephone Line Interface and Speakerphone Circuit AS2523, AS2524, AS2524B Key Features Line/Speakerphone circuit on a 28-pin CMOS-IC, simple - inventory: same die for AS2523/24 and AS2523/24B Serial I/F on AS2523, parallel I/F on AS2524 - Enhanced voice switching - Background ...
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Data Sheet AS2523, AS2524, AS2524B Pin description Pin # Symbol ine Current ense Input Analog input for sensing the line current ine nput Analog input used for power extraction and line current ...
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Data Sheet AS2523, AS2524, AS2524B Pin # Symbol 25 xCS C S hip elect on AS2523 Chip select input of the serial interface. Internal pull-up resistor ( 100kOhm ) /xMUTE Mute transmit-, receive- path and activate tone path on AS2524 ...
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Data Sheet AS2523, AS2524, AS2524B Detailed Block Diagram Revision 1.13 austriamicrosystems Page ...
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Data Sheet AS2523, AS2524, AS2524B Functional Description 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 ...
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Data Sheet AS2523, AS2524, AS2524B LINE +14dB +8dB ~ +17dB Compress +3dB TXO TXV RO Compress RECV RECI Speech Mode Rx > Tx_atten X Receive Tx_atten > Idle Tx_atten > Rx YES Transmit RX-mode Vol max Vol default ...
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Data Sheet AS2523, AS2524, AS2524B Typical Characteristics of Line Loss Compensation (AS2523, AS2524B only) The line-loss-compensation is programmable at the AS2523, not activated at the AS2524 and LLC high (45mA-75mA) activated at the AS2524B. (dB) Tx Gain ...
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Data Sheet AS2523, AS2524, AS2524B Serial Interface on AS2523 Registers The settings of the AS2523 are stored in 16 registers. Each register has 4 bit data width. Timing The data format for writing to a register has the following form: ...
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Data Sheet AS2523, AS2524, AS2524B Serial interface Registers The following table shows the content of the 16 control registers. Address Data Control registers AS2523 ...
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Data Sheet AS2523, AS2524, AS2524B Programming Guidelines for the AS2523 The AS2523 is programmed by means of a serial 8-bit shift register. MSB is clocked in first, LSB last. The first four bits (7,6,5,4) are the addresses of the registers, ...
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Data Sheet AS2523, AS2524, AS2524B Parallel Interface on AS2524 and AS2524B Input Signal on Pin XPD xMute Power down Power down Power down Power down 1 0 ...
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Data Sheet AS2523, AS2524, AS2524B Tone mode This mode is used to send DTMF and FSK data to the line. Speech mode is Tone mode (M1-M2;M3-M4 muted, Rx path muted, RO and LO active) Parameter AS2524 LI Voltage 4.5V LLC ...
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Data Sheet AS2523, AS2524, AS2524B DC characteristics I =15mA w/o operation of any additional external Line circuitry, unless other specified Symbol Parameter I Operating Current Speech Mode DDS I Operating Current Handsfree Mode DDH V Line Voltage LIVolt=0 15mA<=ILINE<=100mA LI ...
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Data Sheet AS2523, AS2524, AS2524B Symbol Parameter Z Input Impedance IN-M1/2 M1/M2 Z Input Impedance IN-M3/4 M3/M4 V Input Voltage Range INmax M1/2 - M3/4 V Noise Output Voltage Mute Attenuation MUTE Receive characteristics I =15mA f=800Hz, ...
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Data Sheet AS2523, AS2524, AS2524B Symbol Parameter V Noise Output Voltage Gain = 7.5dB Z Input Imp. RI IN-RI Input Voltage Range RI V INmax Z Input Imp. STB IN-STB Input Volt. Range STB V INmax ST ...
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Data Sheet AS2523, AS2524, AS2524B Typical application AS2523 Revision 1.13 austriamicrosystems Page ...
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Data Sheet AS2523, AS2524, AS2524B Typical application AS2524 and AS2524B Revision 1.13 austriamicrosystems Page ...
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Data Sheet AS2523, AS2524, AS2524B Packaging 28-pin plastic SOIC For exact mechanical package dimensions please see austriamicrosystems Pin-out, Marking CBN 1 28 TONE CLK / HFI TXO xPD TXV 4 25 ...
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Data Sheet AS2523, AS2524, AS2524B Copyright Copyright © 2002-2007, 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 ...