AS2533 austriamicrosystems, AS2533 Datasheet

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AS2533

Manufacturer Part Number
AS2533
Description
IC MULTI-STANDARD CMOS TELEPHONE SOIC-28
Manufacturer
austriamicrosystems
Datasheet

Specifications of AS2533

Audio Control Type
Volume
Control / Process Application
Electronic Telephonic Set
Supply Voltage Range
3.8V To 5V
Operating Temperature Range
-25°C To +70°C
Audio Ic Case Style
SOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

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Part Number:
AS2533
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DS
Quantity:
132
Part Number:
AS2533
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CY
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Part Number:
AS2533
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20 000
Multi-Standard CMOS Telephone IC
for Basic Telephones
AS2533-36
General Description
The AS253x is a CMOS integrated circuit that contains all
the functions needed to build a high performance electronic
telephone set with basic features.
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-on-
board mounting.
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.
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.
Key Features
Line Interface and Speech Circuit
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Block Diagram
Revision 8.8
Electronic Rx volume control
Electronic microphone mute
Microphone amplifier with symmetrical input
Figure 1 Block Diagram
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Dialler
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Ringer
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Package
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austriamicrosystems
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)
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
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
SOIC 28 or DIE
DATA SHEET
Page 1 of 25

Related parts for AS2533

AS2533 Summary of contents

Page 1

... Unique EMI performance (EU compliant) - Dialler LD/MF dialing and mixed-mode dialing - 31 digit last number redial (LNR 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 ...

Page 2

... Data Sheet AS2533-36 Pin Description Pin # Symbol 4 V Positive Voltage Supply DD This is the supply pin for the circuit nalog round GND This is the analogue ground for the amplifiers. 6 STB ide one alance Input This is the input for side tone cancellation omplex ...

Page 3

... Temporary key Centrex ( keys Volume (VOL, –/+) keys Volume reset by off-hook Programming of tone ringer R3 Flash duration The corresponding product (AS2533-36) can be selected via bond-options (see chapter “Bond options” for details). Revision 8.8 Function I nput and V can be used to set the DTMF level. ...

Page 4

... Data Sheet AS2533-36 Functional Description Keyboard Connections Key closure, R max kΩ ON Key open, R min MΩ OFF Revision 8.8 (Either VOL or +/– keys − − − Figure 2 Keyboard Connection AS2533/ − − − Figure 3 Keyboard Connection AS2534 austriamicrosystems Page ...

Page 5

... Data Sheet AS2533-36 Keyboard Connections continued Power On Reset The on chip power on reset circuit monitors the supply voltage (V ) during off-hook. When V rises above DD DD approx. 1.2V, a power on reset occurs which clears the RAM. DC Conditions The normal operating range is from 100 mA. Operating range with reduced performance is from (parallel operation) ...

Page 6

... As an alternative the +/– keys can be used. The + key increases the gain by 8 steps and the – key decreases the gain by 5 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 ...

Page 7

... LNR RAM remains intact. After a recall a 270 ms pause will automatically be Revision 8.8 austriamicrosystems 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. Memory arrangement AS2533/36 AS2534 Storable numbers 14 ...

Page 8

... Data Sheet AS2533-36 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 Hz Digit 3-6-9-# 1477 Hz Digit A-B-C-D 1633 Hz (not AS2535) The MF output level can be set with an external voltage divider on pin MFL ...

Page 9

... Data Sheet AS2533-36 Typical Characteristics of Line Loss Compensation (dB) Tx Gain 35 34 LLC = 800 600Ω LINE -10 dBm Figure 6 Typical Tx Gain Characteristics Line Loss Compensation (dB) Rx Gain +4 +3 LLC = 800 600Ω LINE -10 dBm LS -1 VOL = 0 dB (neutral Figure 7 Typical Rx Gain Characteristics Line Loss Compensation Revision 8 ...

Page 10

... Data Sheet AS2533-36 Typical Application Complex Impedance (270 W + 750 W // 150 nF) 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 and to interface to different transducers. Since the AS253x is a ...

Page 11

... Data Sheet AS2533-36 Programming 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 - not invoke any automatic functions which the user - doesn’ ...

Page 12

... Data Sheet AS2533-36 Timing Diagrams LD Dialing MUTE MASK HS/DPN t IDP t PDP LD Dialing with Access Pause MUTE MASK HS/DPN t t IDP B t PDP MF Dialing MUTE HS/DPN ITP Revision 8 IDP ITP AP austriamicrosystems PDP IDP PDP ITP Page ...

Page 13

... Data Sheet AS2533-36 Flash MUTE MASK HS/DPN Repeat Dialing (not AS2535) Number engaged RP key MUTE DIALLING HS/DPN Power Down Revision 8 PFP M M New connection austriamicrosystems Page ...

Page 14

... Data Sheet AS2533-36 Electrical Characteristics Absolute maximum ratings Positive Supply Voltage Input Current Input Voltage (LS) Input Voltage (LI, CS) Input Voltage (STB, RI) Input Voltage (MO) Digital Input Voltage Electrostatic Discharge (HBM 1.5kΩ-100pF) Storage Temperature Recommended operating conditions Supply Voltage * (Speech Mode) Oscillator Frequency (Resonator: Murata CSA 3 ...

Page 15

... Data Sheet AS2533-36 AC Characteristics (I LINE = 15 mA 800 Hz unless otherwise specified) Symbol Parameter Tx Transmit A Gain, Transmit TX Variation with Frequency ΔA TX/F THD Distortion V Soft Clip Level AGC A Soft Clip Overdrive SCO t Attack Time ATTACK t Decay Time DECAY Z Input Impedance (M1/M2 Mute Attenuation ...

Page 16

... Data Sheet AS2533-36 AC Characteristics (cont´ mA 800 Hz unless otherwise specified LINE Symbol Parameter Keyboard Key Debounce Time t D HS/DPN Input Low to High Debounce t HS-L High to Low Debounce t HS-H DTMF F Frequency deviation MF Tone Level (Low group Tone Level (Low group Preemphasis Low to High Δ ...

Page 17

... This condition will remain until a new reset. Revision 8.8 Conditions Min R1 key 100 R2 key 270 R3 key (AS2533/34/35/36) 600 Note 8 2.0 Initial Program Mode Only P/M mode, key entry Key entry Valid key entry, prog. ...

Page 18

... Data Sheet AS2533-36 Test Circuit Revision 8.8 austriamicrosystems Figure 9 Test Circuit Page ...

Page 19

... Data Sheet AS2533-36 Characteristic Curves (Typical) 1,2 soft clipping [Vp] 1,0 0,8 Line Current: 20mA Frequency: 800Hz Tamb: 25°C 0,6 Typically 0,4 0,2 0,0 0,00 0,25 0,50 0,75 1,00 1,25 Line Input Voltage (LS) Figure 10 Receive Soft Clipping and Distortion Revision 8.8 12 2,5 ...

Page 20

... Data Sheet AS2533-36 Bond Pad Layout Bond Options Product Version AS2533 AS2534/34R (1) AS2535 AS2536 (1) For deliveries as packaged devices (SOIC28), LNR only is tested, direct and indirect memories are not tested! Revision 8.8 Bond Pad Connection BOND_AS2535 not bonded BOND_AS2536 not bonded BOND_AS2535 ...

Page 21

... Data Sheet AS2533-36 Sizes and Coordinates Die Size: 3.190mm x 2.975mm Bond Pad Size: 85µm x 85µm Bond Pad Co-ordinates: Reference co-ordinate of DIE = DIE center Reference co-ordinate of PAD = PAD center X y [µm] [µm] Pad Name Pads on the Left -1413.50 1052.25 VDD -1413.50 796 ...

Page 22

... Data Sheet AS2533-36 Vertical Structure of Bond Pads Process CXQ/CXB – FAB B General Conditions Passivation 200 nm silicon oxynitride + 550 nm silicon nitride Marking of Failure Dice Ink Dots, water resistant, Diameter 0.4...1.2 mm Allowed Loss after Assembly < average < 10% for a single delivery lot Compensation is limited to replacement of the number of defectives exceeding the above allowances ...

Page 23

... 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 Angle deviation wafer to frame: ± 8° Orientation wafer to frame: Wafer flat to frame side with kerfs Covering adhesive foil to frame: > ...

Page 24

... Data Sheet AS2533-36 Packaging The device is available in the packages outlined below (not to scale). For exact mechanical package dimensions please see austriamicrosystems packaging information. AG 28-pin plastic SOIC (suffix T) Max. Body Length 18.1mm / 713mil Max. Body Width 7.6mm / 300mil Pitch 1.27mm / 50mil Ordering Information ...

Page 25

... Data Sheet AS2533-36 Contact Information 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: http://www.austriamicrosystems.com/contact Copyright Copyright © 1997-2006, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered ® ...

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