AS2536 austriamicrosystems, AS2536 Datasheet

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AS2536

Manufacturer Part Number
AS2536
Description
IC MULTI-STANDARD CMOS TELEPHONE SOIC-28
Manufacturer
austriamicrosystems
Datasheet

Specifications of AS2536

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
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
-
-
-
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
-
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 AS2536

AS2536 Summary of contents

Page 1

... Line Interface and Speech Circuit Electronic Rx volume control - Electronic microphone mute - Microphone amplifier with symmetrical input - Block Diagram Revision 8.8 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 - ...

Page 2

... Figure 2, Figure 3 and Figure Revision 8.8 Function : LLC = V : none ial ulse Output SMD Lead Select Input Function Dialing inhibited LD mode, 10 pps, 33/ mode, 10 pps, 40/ mode, 20 pps, 33/ mode, 20 pps, 40/ mode, 10 pps, 33/66 ms, Temp. MF with tone on first * key entry MF only, 82/ only, 82/160 ms austriamicrosystems Page ...

Page 3

... P/M P/M yes yes yes yes yes yes yes yes yes no AS2534:yes yes AS2534R: no 600 ms 600 ms austriamicrosystems AS2535 AS2536 yes yes yes yes yes no yes P/M P/M no yes yes yes no yes yes yes yes no yes ...

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

... Return loss and side tone cancellation can be determined independent of each other. Speech Circuit The speech circuit consists of a transmit and a receive path with dual soft clipping, mute, line loss compensation and sidetone cancellation. austriamicrosystems in order to turn the SS ZAC = 33 · Z1 Page ...

Page 6

... Figure 5 Side Tone Balance Revision 8.8 austriamicrosystems Line Loss Compensation The line loss compensation is a pin option. When it is activated, the transmit and receive gains are decreased line currents from when LLC = A and when LLC = high (@ Ω). The line loss compensation is disabled when LLC = low (see Figure 6 and Figure 7) ...

Page 7

... 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 8.8 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 ...

Page 8

... Once the melody generator has been started, the ring - 7 dB signal is continuously monitored and the melody generator 0 dB (max.) is instantly turned on or off according to the momentary - 16 dB presence of a valid or invalid ring signal respectively (until - 7 dB next POR or off-hook (max.) Off austriamicrosystems Page ...

Page 9

... 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 8.8 LLC = V GND LLC = V GND austriamicrosystems LLC = Line Current 70 80 (mA) LLC = Line Current 70 80 (mA) Page ...

Page 10

... 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. For further application information please refer to application note AN2201 ...

Page 11

... Press [P/M] to store and exit or go on-hook to abort 1 Digit includes 0 – 9 Revision 8.8 austriamicrosystems When Code 0 (tone ringer off) has been programmed, the device will automatically return to previous setting (different from 0) by next off-hook. Temporary MF The procedure below assumes that the device is operated in puls mode ...

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

... T = 25°C AMB < I < 100 mA LINE 0.4V OL HS/DPN; FCI 25°C AMB B HS/DPN; FCI 0 25°C AMB B austriamicrosystems -0.3V < V < ± 25mA -0.3V < V < 10V IN -0.3V < V < -2V < V < V +0. -0.3V < V < +35V IN -0.3V < V < V +0. ± 1000V -65°C to +125°C 3.8V < ...

Page 15

... Test Circuit Figure 1.5 VOL key –/+ keys f = 500 Hz to 3.4 kHz V < 0.25V RI RMS > 0.8V RI RMS T = 25°C AMB B 50 Hz....20 kHz V < 0.25V 26 RI RMS austriamicrosystems Typ Max Units 36.6 38.1 dB ±0 PEAK μs ms/6dB 20 kΩ -72 dBmp ±1 ...

Page 16

... Mode = row 19.05 Mode = row 2 Mode = row 4 28.5 Mode = row Mode = row 3 31.5 Mode = row 2 Mode = row 4 Mode = row 31.5 Mode = row 3 15.7 Mode = row 780 fosc = 3.58 MHz During LD dialing austriamicrosystems ) Typ Max Units 210 ms 270 ms 1 5.5 dB -16…- ...

Page 17

... 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. austriamicrosystems Typ Max Units 102 ms 300 ...

Page 18

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

Page 19

... THD 0,0 1,50 1,75 2, [Vp] Figure 11 Transmit Soft Clipping and Distortion Typically No AC signals Tamb: 25° Line Current [mA] Figure 12 DC Mask austriamicrosystems 10 [%] 9 VLS 8 7 Line Current: 20mA 6 Frequency: 800Hz Tamb: 25°C 5 Typically 4 3 THD 100 125 150 [mVp] ...

Page 20

... 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 not bonded BOND_AS2536 bonded to MODE BOND_AS2535 bonded to MODE BOND_AS2536 not bonded BOND_AS2535 not bonded BOND_AS2536 bonded to MODE austriamicrosystems Page ...

Page 21

... CI -1392.50 -107.75 MO -1392.50 -399.35 LLC -1392.50 -974.20 HS/DP Pads on the Bottom -1244.00 -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 -49.70 -1285.00 C3 214.50 -1285.00 C2 379.90 -1285.00 C1 677.30 -1285.00 R4 842.70 -1285.00 R3 1173.30 -1285.00 R2 Revision 8.8 x ...

Page 22

... Storage Conditions 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 Conditions for Delivery as Wafer Wafer diameter 200 mm Wafer thickness 380 ± ...

Page 23

... Sawing conditions Sawing mode: Saw - through mode Sawing width: typ. 60 µm Kerf depth in foil: typ. 20 µm XV -dimension deviation: max.25 µm Packing frame sealed in foil bags filled with nitrogen Storage time In sealed bags 2 months, Tamb = 25 °C Mechanical Drawing of Frame Revision 8.8 austriamicrosystems Page ...

Page 24

... AS2535 T AS2535U-ZSO-U AS2535 F pls see bottom rows AS2535 W pls see bottom rows AS2536 T AS2535U-ZSO-U AS2536 F pls see bottom rows AS2536 W pls see bottom rows AS253x F AS253xU-ZSW-F AS253x W AS253xU-ZSW AS253xR F AS253xR-ZSW-F AS253xR W AS253xR-ZSW Please Note: For wafer delivery or dice-on-foil delivery, the versions can be selected by bond options. ...

Page 25

... No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services. ...

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