ST5080A Datasheet | STMicroelectronics

FEATURES : plete CODEC and FILTER system including: PCM ANALOG TO DIGITAL AND DIGITAL TO ANALOG CONVERTERS POWERFUL ANALOG FRONT END CAPABLE TO INTERFACE DIRECTLY: - Microphone Dynamic, Piezo or Electrete - Earpiece down to 100Ω or up to 150n F - Loudspeaker down to 50Ω or Buzzer up to 600n F. TRANSMIT BAND-PASS FILTER ACTIVE RC NOISE FILTER RECEIVE LOW-PASS FILTER WITH SIN X/X CORRECTION MU-LAW OR A-LAW SELECTABLE PANDING CODER AND DECODER PRECISION VOLTAGE REFERENCE Phones Features : DUAL SWITCHABLE MICROPHONE AMPLIFIER INPUTS. GAIN PROGRAMMABLE: 15 d B RANGE, 1 d B STEP. LOUDSPEAKER AMPLIFIER AUXILIARY OUTPUT. ATTENUATION PROGRAMMABLE: 30 d B RANGE, 2 d B STEP. SEPARATE EARPIECE AMPLIFIER OUTPUT. ATTENUATION PROGRAMMABLE: 15 d B RANGE, 1 d B STEP AUXILIARY SWITCHABLE EXTERNAL RING INPUT (EAIN). TRANSIENT SUPRESSION SIGNAL DURING POWER ON. INTERNAL PROGRAMMABLE SIDETONE CIRCUIT. ATTENUATION PROGRAMMABLE: 15 d B RANGE, 1 d B STEP. INTERNAL RING OR TONE GENERATOR INCLUDING DTMF TONES, SINEWAVE OR SQUAREWAVE WAVEFORMS. ATTENUATION PROGRAMMABLE: 27 d B RANGE, 3 d B STEP. PATIBLE WITH HANDS-FREE CIRCUIT TEA7540. ON CHIP SWITCHABLE ANTI-ACOUSTIC FEED-BACK CIRCUIT (ANTI-LARSEN). SO28 ORDERING NUMBER: ST5080D General Features : EXTENDED TEMPERATURE RANGE OPERATION (- ) - 40°C TO +85°C. EXTENDED POWER SUPPLY RANGE 5V±10%. 60 m W OPERATING POWER (TYPICAL). 1.0 m W STANDBY POWER (TYPICAL). CMOS DIGITAL INTERFACES. SINGLE + 5V SUPPLY. DIGITAL LOOPBACK TEST MODE. PROGRAMMABLE DIGITAL AND CONTROL INTERFACES: - Digital PCM Interface associated with separate serial Control Interface MICROWIRE™ patible. - GCI interface patible. (- ) Functionality guaranteed in the range - 40° C to +85°C; Timing and Electrical Specifications are guaranteed in the range - 25° C to +85° C. APPLICATIONS: ISDN TERMINALS. DIGITAL TELEPHONES CT2 AND GSM APPLICATIONS 1/32 December 1994 This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without...