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SA9401 Datasheet

Part Number SA9401
Manufacturers Sames
Logo Sames
Description UNIVERSAL PABX TONE GENERATOR
Datasheet SA9401 DatasheetSA9401 Datasheet (PDF)

sames FEATURES s Generates PBX supervisory tones in PCM format s s s s SA9401 UNIVERSAL PABX TONE GENERATOR Each of these tone streams selectable from 16 tone blocks Seperate Intrude Tone for each program Choice of clock frequencies Watchdog facility Low power CMOS technology Integrated time slot allocation circuitry No noticeable level changes in tones Frame synch. signal source (internal/ external) selectable Eight tone programs Eight independent PCM tone streams within each program s s s.

  SA9401   SA9401






UNIVERSAL PABX TONE GENERATOR

sames FEATURES s Generates PBX supervisory tones in PCM format s s s s SA9401 UNIVERSAL PABX TONE GENERATOR Each of these tone streams selectable from 16 tone blocks Seperate Intrude Tone for each program Choice of clock frequencies Watchdog facility Low power CMOS technology Integrated time slot allocation circuitry No noticeable level changes in tones Frame synch. signal source (internal/ external) selectable Eight tone programs Eight independent PCM tone streams within each program s s s s s s PROGRAMMABLE FEATURES s Tone samples s s s s s s Intrude tone frequency Intrude tone cadence "silence sample" value Tone Cadence timing Tone to time-slot mapping Size of tone blocks DESCRIPTION The SA9401 operates in conjunction with a standard EPROM to generate the system tone plans for the PABX systems of most major countries. The high level of programmability allows the SA9401 to satisfy a wide variety of tone plans. Furthermore by providing three inputs to select between one of eight tone programs during initialisation, the device effectively facilitates the design of a universally programmable "PABX Processor Card". Because the tone program inputs are latched at the start of each PCM frame the SA9401 minimises the possibility of glitches. The SA9401 can also generate the PCM Frame synchronising reference signal if required. 4092 PDS039-SA9401-001 REV. C 07-05-96 SA9401 A7 MRST D0 D1 D2 V CC D3 D4 D5 D6 D7 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 CLK_SEL A.


2005-05-18 : SA52    SA52-11    SA52-11EWA    SA52-11GWA    SA52-11SRWA    SA52-11SRWAI    SA52-11YWA    SA5200    SA5204    SA5205   


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