M34116

M34116 PCM CONFERENCE CALL AND TONE GENERATION CIRCUIT PRELIMINARY DATA HW AND SW COMPATIBLE WITH M116 1 TO 64 SERIAL CHANNELS PER FRAME (CONTROLLED BY SYNC SIGNAL PERIOD) 29 MAXIMUM CONFERENCES 1 TO 64 SERIAL CHANNELS PER CONFERENCES 3 SIMULTANEOUS OPERATION MODES AVAILABLE: CONFERENCE, TRANSPARENT AND TONE GENERATION TYPICAL BIT RATES: 1536/1544/2048/4096Kbits/s COMPATIBLE WITH ALL KINDS OF PCM FORMAT µ AND A LAW (PIN PROGRAMMABLE) EQUAL PRIORITY TO EVERY CHANNEL ONE FRAME AND ONE CHANNEL DELAY FROM SENDING TO RECEIVING OVERFLOW INFORMATION FOR EACH CONFERENCE BY PIN OS (OVERFLOW SIGNALLING) AND ON DATA BUS ON MPU REQUEST INSTRUCTION SET COMPATIBLE WITH M3488 PROGRAMMABLE INPUT AND OUTPUT ATTENUATION OR GAIN FROM 0 TO 15dB WITH STEP OF 1dB FOR EACH CHANNEL TONE GENERATION FROM 3.9Hz TO 3938Hz WITH MIN. STEP OF 3.9Hz TOTAL OF 7 DIFFERENT TONE OUTPUTS IN PARALLEL PROGRAMMABLE VIA MPU (MAXIMUM 4 DIFFERENT FREQUENCIES AND DURATIONS) 1 MELODY OF MAXIMUM 32 PROGRAMMABLE FREQUENCIES AND DURATIONS 5V POWER SUPPLY TTL COMPATIBLE INPUT LEVELS, CMOS/TTL COMPATIBLE OUTPUT LEVELS MAIN INSTRUCTIONS CONTROLLED BY MICROPROCESSOR INTERFACE: – Channel connection to a conference – Channel attenuation or gain – Channel disconnection from both conference and transparent modes – Tone and melody generation – Overflow status – Operating mode – Channel status January 1995 DIP24 ORDERING NUMBER: M34116B1 PLCC28 ORDERING NUMBER: M34116C1 DESCRIPTION The M34116 is a product specifically designed f...