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AN1500A Datasheet(PDF) 5 Page - Sames |
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AN1500A Datasheet(HTML) 5 Page - Sames |
5 / 27 page AN1500A sames sames sames sames 5/27 The SA2532K device was developed to provide “plug & play” solution for the Indian DOT, emphasizing high performance voice transmission and reception. In spite of the fact that voice transmission and reception are the most vital features in telephony, they are very often ignored or given lower priority compared with some more or less useless non-voice features. No compromises were accepted during the design phase of the SA2532K, which is based on the SA2531/2 speech circuit and which supersedes even the hardest PTT requirements worldwide. The dialler part is based on a long history of producing a wide range of dialer circuits with user-friendly features in compliance with various national PTT regulations. This knowledge enabled us to develop a specific product to meet with DOT type approval. The last piece in the puzzle to complete the full picture of the first CMOS single chip POT was the tone ringer. A ring frequency discrimination circuit was implemented to avoid false “bell-tinkle” during pulse dialing from a parallel telephone. The 3-tone melody generator provides the ringing signal. Note: all the subsequent component numbering is referenced to the AN1500 schematic, shown in pt.22 The SA2532K is the rare combination of advanced technology and down-to-earth simplicity providing easy and uncomplicated design effort for the telephone manufacturer. No fussing around: Simply go by the straight forward guidelines supplied by a highly experienced application group. No technology stress but appealing functionality. See Fig. 1 for configuration locations: Fig. 1: Demo board configuration 6 General Description 7 Demo board configuration J2: Dial Mode Selection Line connector Handset Connector J3: line loss compensation selector Sidetone Network Ringer Capsule Connector J1 :Line terminal selection |
Similar Part No. - AN1500A |
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Similar Description - AN1500A |
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