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AS2533F 数据表(PDF) 1 Page - ams AG |
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AS2533F 数据表(HTML) 1 Page - ams AG |
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1 / 25 page  austriamicrosystems Multi-Standard CMOS Telephone IC for Basic Telephones AS2533-36 DATA SHEET 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 - Electronic Rx volume control - Electronic microphone mute - Microphone amplifier with symmetrical input - 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) Dialler - 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 Ringer - 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 Package - SOIC 28 or DIE Block Diagram Figure 1 Block Diagram Revision 8.8 Page 1 of 25 |
类似零件编号 - AS2533F |
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类似说明 - AS2533F |
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