AS2524B austriamicrosystems AG, AS2524B Datasheet
AS2524B
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AS2524B Summary of contents
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... CPU via a serial interface on AS2523 or a standard dialler via a parallel interface on AS2524 and AS2524B. Applications Enhanced handsfree feature phones with CallerID and extended displays. The AS2524 and AS2524B are developed to interface with common Taiwanese dialers. Package Available in 28-pin SOIC or die Page ...
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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 sensing eceive nput Analog input for ac-separated receive signal ...
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... 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 and AS2524B ata nput on AS2523 Data input of the serial interface. Internal pull-up resistor ( 100kOhm ) ...
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... Data Sheet AS2523, AS2524, AS2524B Detailed Block Diagram Revision 1.12, Preliminary 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 power down mode. The DC characteristic is determined by the voltage at LI- pin and a 30 resistor between LI- and LS-pin ...
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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 Revision 1.12, Preliminary Gmax = +9dB Gmin = -21dB … -40dB (Vol) ...
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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 800 600 LINE -10 dBm ...
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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: xCS CLK Note: The pins xCS,CLK,DI have internal pull-up resistors. ...
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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 Nop ...
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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, the last four bits (3,2,1,0) are the data bits. ...
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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 Tone mode Tone mode Handset mode Handsfree mode Power down mode For low power consumption the analog part is turned off during activated power down mode ...
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... LLC No LLC Tone TX-Gain +14dB Confidence tone -36dB@Ro –15dB@Lo level relative to Pin LS Loudhearing AS2524 and AS2524B (feature only available as DIE) Speech mode is Loudhearing (M3-M4, RO active; LO activated). Loudhearing can be activated via a bond-option (see document “AS2523/24 Delivery as Dice”). Parameter LI Voltage LLC TX-Gain RX-Gain ...
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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 Line Voltage LIVolt=1 I Output Current, Sink OL CS,SS VOL=0.4V ...
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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, default settings unless other specified Line Symbol Parameter A Receive Gain Vol default A Receive Gain ...
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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 Side tone V RL Return Loss Z Temp. Variation Z AC/°C Test circuit D1 10V ...
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... Data Sheet AS2523, AS2524, AS2524B Typical application AS2523 Revision 1.12, Preliminary austriamicrosystems Page ...
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... Data Sheet AS2523, AS2524, AS2524B Typical application AS2524 and AS2524B Revision 1.12, Preliminary austriamicrosystems Page ...
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... Data Sheet AS2523, AS2524, AS2524B Packaging 28-pin plastic SOIC For exact mechanical package dimensions please see austriamicrosystems packaging information. AG Pin-out, Marking CBN 1 28 TONE CLK / HF I TXO xPD TXV 4 25 xCS / xMUTE VSSA VPP ...
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... Data Sheet AS2523, AS2524, AS2524B Contact Headquarters austriamicrosystems AG Communications Business Unit A8141 Schloss Premstaetten, Austria T. +43 (0) 3136 500-0 F. +43 (0) 3136 500-5692 www.austriamicrosystems.com Sales Offices Germany austriamicrosystems Germany GmbH Tegernseer Landstrasse 85 D-81539 München, Germany Phone: +49/89/693643-0 Fax: +49/89/693643-66 France austriamicrosystems France S.a.r.l. 124, Avenue de Paris ...